Bulgarian, whose real name is angular Sander, LBM is a universal tool. Without it, almost never do construction work. But in order for the tool to last a long time, it is necessary to choose the right grinding discs. A disc for wood is fundamentally different from a disc for metal. What are its features, and what are the varieties?
To date, the entire range is divided into three main areas:
- Saw discs. They resemble a regular saw, but are made from completely different materials. Until recently, such copies were not found, but now they are sold completely freely. The most preferred option is tungsten carbide.
- Disc with diamond-coated. The most popular variety. In turn, it is divided into continuous and segmented. The scope of their application is different, but there is common feature- high-quality and accurate result of work on concrete, metal or stone.
- Abrasive. Universal consumable suitable for any type of surface. Qualitatively cuts and grinds, and also polishes.
Of the listed discs, the first and second are not suitable for wood. Natural wood has a very dense structure, and if you use a diamond blade, the grinder will overheat until it breaks.
Also, the products differ in diameter. The most practical ones have a diameter of 125 mm, in rare cases a compact disc is needed - 115 mm. There are specimens up to 230 mm, but they are not suitable for wood. Their use may result in injury.
Choice of cutting wheels for wood
Cutting discs are divided into three parameters - diameter, depth of cut and shape / frequency of the teeth. Choosing desired option, there are several things to consider: how often the product will be used and for what kind of wood.
Coniferous and other soft woods can be easily sawn with a straight-tooth blade. If you plan to cut different wood, it is better to take a universal circle with variably beveled teeth. There are also trapezoid teeth which are ideal for sawing through medium density wood and solid woods.
Choice of grinding and polishing wheels
If cutting material requires certain skills, then almost anyone can grind. This operation is usually used petal discs. Such a disc consists of several petals of emery, arranged in a circle. Sandpaper provides soft sanding.
Another option is a Velcro abrasive disc. It is convenient to use, but even more convenient to change. Such circles do not last long, but also have a low cost. And, of course, they are many times more effective than the manual method of processing with sandpaper. For example, using such a circle, you can polish parquet.
Tree preparation
Whatever the disc for the grinder, the work cannot be done well if the wood is not properly prepared. Here are some tips for this:
- the tree must be thoroughly dried;
- special peeling nozzles are suitable for removing paint or varnish from the surface;
- work is carried out in two stages, roughing and finishing.
Discs and other tools that you will need for full-fledged grinding or polishing of wood:
- Cord brushes designed for rough surface grinding. Helps to give the workpiece an acceptable shape.
- The next step in processing a natural wood blank is to use a sanding attachment. If the subject is complex, you will also need to apply radial stripes.
- A felt circle made of pressed wool (coarse, fine or semi-coarse) will help get rid of the slightest roughness. With their help, the surface can be made almost mirror.
As you can see, when using various nozzles, the grinder becomes a universal tool for woodworking.
Saw (chain wheels)
Suitable for cutting boards less than 4 cm thick. Use requires extreme care. During non-working hours, the disc should be kept in a case, and during operation it should be used only at those speeds that are written on the product itself.
Goggles and protective gloves are also required when working. It is important to remember that on the grinder, in no case should you use ordinary circles intended for circular saw.
Using an angle grinder for milling
A wood cutter for a grinder in non-professional hands can be dangerous. For a specialist, its use is permissible.
The cutter helps to level the edge, make grooves, cut blanks and cut out bowls for log cabins. Even on inhomogeneous wood, the tool will not jam or kick back. However, before using it, it is important to carefully read the instructions, as well as observe the necessary speed.
The choice of cutters for angle grinders is quite wide, no less than for a manual milling machine. They are not designed for precise processing, but are quite suitable for shaping.
Safety rules during work
In order for the use of a wood disc for a grinder to bring only benefits, and not injuries and damaged products, several important rules must be observed:
- choose the right circle according to size and properties;
- the mode of operation of the machine must comply with the requirements on the disk;
- in no case should you use damaged circles;
- protect your hands and face with special devices and overalls.
The nozzle should fit effortlessly under the casing of the angle grinder. If you cannot do this, then do not remove the casing, it is traumatic.
Why can't saw blades be used with an angle grinder?
The hardness of a tree can be different even within a few centimeters. Also, it can come across clots of resin and knots. All these uneven areas lead to the fact that the saw blade stops abruptly, as a result, the angle grinder breaks out of the hands.
- What are cutting wheels?
- Work tips
The angle grinder, popularly known as the grinder, is a worthy and versatile tool. It is this equipment that allows you to successfully perform cutting, grinding, polishing, sawing off almost any material. When choosing a grinder, it is extremely important to understand which model is recommended for use. The choice is largely determined by the main purpose of the proposed equipment. Metal and wood will require different types disks and a specific approach, because otherwise the work will not bring the desired results.
Wheels for an angle grinder: we start with market research
The range is striking in its diversity. What are grinding discs and how are their characteristics determined? To fully answer the question, the entire market should be divided into main areas.
- Abrasive coated wheels. This consumable tool is universal, therefore, with its help, any workpiece can be cut and polished with high quality. In addition, the possibility of polishing is assumed. The abrasive tool is not in vain considered one of the best.
- A diamond-coated grinder disc is one of the most common building tools. These products are segmented and solid, and for each option, its own area of \u200b\u200buse is defined. In each case, the possibility of high-quality and accurate cutting of durable materials is assumed, among which are stone, metal, concrete monolith.
- Saw blades on the grinder visually resemble modern saw models. However, other alloys are used for their production. Previously, products were rare, but now their prevalence is growing rapidly. Most the best way tungsten carbide grinding wheel.
Taking into account the variety of modern products, you should abandon the senseless and sometimes dangerous attempts to establish a circle from a circular to a grinder. Any circular discs are designed for low speeds, and on the grinder there is a risk of distortion or destruction of the tool.
How to choose a suitable angle grinder model?
When studying modern circles for an angle grinder, it is important to understand the basic principles for choosing a consumable for an angle grinder. What aspects to take into account?
Grinding wheels have several standard diameters. The most compact model differs in size in 115 mm. However, 125 mm grinder discs are of greater practical importance. Moreover, it was angle grinders for the 125th circles that were most widely used not only among the pros, but among home craftsmen.
Natural wood always turns out to be a specific heterogeneous material, therefore working with it requires special circles. Grinding discs, which are designed for cutting metal or concrete, are categorically not suitable for such processing. Otherwise, the grinder will be destroyed or burned by overheating.
When choosing equipment for grinding, it is important to note that the standard diameter of the installed shaft is 22.2 mm. Previously, there were several divisions, so labeling still plays an important role. Today, for example, a standard saw blade for woodworking has a diameter of 125x22.2 mm.
Although maximum size The angle grinder is 230 mm, such dimensions are undesirable when processing wood. When choosing a tool with a large diameter (from 150 mm), you run the risk of serious injury. The preferred dimensions are 115x22.2-125x22.2 mm. In addition, the 125th circles are able to cope with a fairly large range of production tasks.
Only if you understand the specifics of the equipment used, you can learn how to correctly select discs for a grinder for safe and efficient processing. natural wood.
What are cutting wheels?
Parameters that are used for classification cutting discs on wood:
- Disc diameter;
- Depth of cut wood;
- Characteristics of the teeth: shape, frequency, number.
What to consider when planning to use a cutting disc for a modern angle grinder?
- If saw blades for wood grinders will be rarely used, and the type of wood being processed will be different, it is best to choose a model with variable beveled teeth.
- For sawing softwood and softwood, models with straight teeth are suitable. Such saw blades successfully process even the softest wood, guaranteeing a decent work result.
- Trapezoidal tooth allows universal use. When choosing such equipment, it is best to cut medium density chipboard. Other products can be used if desired.
What parameters should be taken into account for successful work with wood when choosing sawing consumable tools?
- Rounded cutouts are required, which will be made towards the shaft.
- The optimal disc thickness is 2 mm.
- The depth of the cuts made can reach 20 mm.
- Cutouts are empty, but in some cases they are filled with copper.
Equipment for grinding and peeling work
In most cases, working with materials involves the need not only for polishing, but also for grinding and roughing activities.
Cutting wood is a dangerous activity. At the same time, anyone who has necessary equipment. The most important thing is to understand the principles of technological operations.
Most often, flap discs are used for peeling grinders. Having carefully studied the specifics of the product, it is possible to understand how functional and effective it is.
The name gives an initial idea about the features of the device. consumable tool. Its working surface has several petals of sandpaper. This structure is comparable to fish scales. At the same time, this paper with a low roughness allows you to guarantee a soft sanding of natural wood. The quality and degree of processing depends on the grit of the material, so polishing and grinding can be performed in accordance with the requirements.
The petal disc for the angle grinder is quite popular, but if desired, you can use another consumable tool.
For example, the sticky universal disk deserves attention. Modern nozzles on the grinder provide for the possibility of a quick change of Velcro. The price of sticky discs used for basic operations turns out to be lower than that of a solid petal one, but the service life is also shorter. If, nevertheless, a universal sticky circle is chosen for the grinder, then it can be used for processing and grinding various materials, which confirms the demand for these products.
A polishing and grinding tool may be of high quality, but it cannot guarantee the successful completion of the job. What is the reason for this? It's very simple: the wood used must be thoroughly dried. Moreover, raw wood cannot be used. Otherwise, the result will be unpredictable. When choosing a disc for wood, you need to be sure that the material being processed has the right properties.
Sometimes cleaning work is required to remove the old layer of paint or varnish, fungal infections. Polishing and grinding tool always show themselves at a decent level only if the wood is prepared according to technological requirements. Bearing in mind that polishing and grinding discs for grinders are not provided for initial processing, roughing attachments are required.
Choosing similar nozzles for the grinder, maximum benefit they can be felt when cleaning old surfaces that have been repeatedly painted. This is due to the following factor: the nozzles are made in the form of a metal plate, which is densely dotted with wire bristles located closer to the outer circumference, radially or perpendicular to the disk.
Work tips
Finishing work begins only after successfully giving the workpiece a preliminary outline. The results largely depend on what types of nozzles are used to perform the tasks.
Angle grinders are used in the form of a cutter, as well as polishing and grinding attachments. Nozzles on the grinder increase the functionality of the device used.
So, how to carry out the polishing and grinding process when processing wood? What tools do you need to be successful?
- Brush cord. These tools are ideal for rough wood sanding. The possibility of successful leveling of wood is assumed, with giving the optimal shape to the product.
- End discs allow easy turning of workpieces. In most cases, such work is required for bevel cuts. Work end disk resembles the interaction of the workpiece with the saw.
- Petal sanding attachments- This is the most popular option for used consumables. The characteristic of the tool determines the possibility of processing various workpieces, including natural wood. It is important to note that the cleaning of complex wooden objects is carried out only using radial strips.
- Felt circle - allows you to achieve minimal roughness, processed products. The basis is pressed wool, fine-haired, semi-coarse-haired and coarse-haired. Felt working tool allows not only to carry out high-quality processing of wood or other material, but also to give a perfectly smooth surface, comparable to a mirror.
- A wheel for a grinder designed for grinding is often compared with a disc of the same name. It is important to note that the Velcro circle is universal tool, which has a wide range of applications. Various woodworking tools certain tasks, but the grinding wheel sometimes surprises with its versatility and high level efficiency.
- chain disc on wood - this is one of the most productive, but rough ways of processing natural material.
When choosing equipment, it is desirable to take into account not only the diameter, but also each accompanying informative designation. The inscriptions will allow you to determine the purpose of the tool and follow the recommendations during operation. Marking discs, circles and nozzles for grinders is a guarantee of a successful result.
A modern grinder is a convenient and effective tool. For quality work special nozzles and discs are required to effectively process wood, metal and any other material of interest.
It's like a fairy tale about a unicorn, everyone has heard about it, but no one has seen it with their own eyes. The public of construction forums and authors of similar articles on the Internet is divided into two camps. The former say that in their life they sawed more than one cubic meter of wood with a grinder, the latter give strong arguments in favor of the fact that after such work you can miss your fingers or limbs, or even worse. Is there a disc for a wood grinder and if so, what does it look like and is it safe to work with it?
The author of this article kindly asks you not to consider this material as a guide to action. An angle grinder is not designed to work with wood, even those manufacturers that produce discs and cutters for wood write on their official websites that it is extremely unsafe to cut wood with a grinder. But we all know that people rarely think about their health in the first place.
Cutting with an abrasive disc
Yes, it’s possible to cut a tree with a metal disc, to be honest, I myself, working at a construction site, have done it more than once. What can be said? Well, firstly, the speed of work with this method is low. Secondly, the smell of burnt wood even on outdoors within a radius of 10 meters you are provided. And thirdly, the thickness of the sawn board should not exceed four centimeters. This is not to mention that the abrasive disc is not a wood disc for a grinder, its main purpose is to cut metal. As for the pros, in my opinion it is: the absence of sawdust, and a smooth, even cut.
Circular saw blade and its improved counterpart
The vast Internet is full of video materials on how to turn a circular disc or a diamond disc for concrete into a disc for working with wood. You can argue for a long time about whether it is worth doing or not? Even without considering myself a very smart person, I would not conduct such experiments. And that's why:
- a circular saw blade is not designed for high speeds, yes, it is carbide, but no less fragile. A single chipped tooth can pose a great danger to a person.
- the edges of the toothed disc are not smooth, crashing into a tree, the grinder will vibrate and crash into the branches of the workpiece. this operation may cause the operator to lose control of the tool.
- increased chance of a kickback
There is an adapted disc for a wood grinder on sale, the manufacturers claim that due to the shape of the tooth and special expanders that are on the cutting part of the disc, all of the above concerns about tool jamming disappear. One of the manufacturers is the company Rotarex, in its assortment you can find both grinding and cutting discs for grinders. Below is an image of a circular disc and a grinder disc from Rotarex, which is universal. They can cut not only wood, but also aerated concrete.
Chain disk for wood grinder
At first glance, it may seem that this is a device for a horror movie, but judging by the reviews of the owners, this disc is safer than the analogues presented above. It is a solid circle, along the edges of which there is a chain from a chainsaw, everything is made of high-quality tool steel. The main purpose of such a disk: milling, modeling, stripping wood from bark and cutting cups in a log for log cabins. It is also possible to cut with such a disc, given that the width of the cut will be about eight millimeters, since the thickness of the chain disc is six millimeters. Speaking of diameters, there are 125 and 230 discs for sale. The service life of such a disc will be many times longer than that of others, since it can always be sharpened with a file. The price for them ranges from two to three thousand rubles, and even more will come out with delivery from another region.
Remember safety!
Whatever disc you work with and whatever material you cut, you should always remember that compliance with safety regulations can save you not only health, but also life. And before you get started, read the following points:
- not work in state alcohol intoxication;
- when working, use safety glasses and overalls;
- never remove the protective cover;
- it is forbidden to use a defective cutting disc or a disc with some, even minor, defects;
- when working with a grinder, hold it with both hands;
- the electrical cord must be at a distance from the rotating disk;
- do not put the tool down until the blade comes to a complete stop.
There are a lot of ways to cut a tree, one of them is to make a cutting disc out of paper. How effective this is, of course, is up to you to judge, but note that this is one of the safest options.
Bulgarian, or angular Grinder(angle grinder), is very popular instrument which is versatile. It is used in the execution of most construction works. Many people are interested in the question of whether it is possible to cut a tree with it. To process this material, it is necessary to choose the right wood disc for the grinder. There are many varieties of nozzles, differing in characteristics and purpose.
The range of nozzles for this tool is quite wide. Products are classified according to their purpose, depending on which 3 main groups of circles for angle grinders can be distinguished:
- saw;
- with diamond coating;
- abrasive.
Saw. They are similar to standard saws, but are made from other materials. The most common option is tungsten carbide discs. They are not suitable for woodworking.
Diamond coated. This group of circles for the grinder is the most extensive. The high popularity of diamond-coated nozzles is due to a wide operational spectrum. With the help of such circles, it is possible to process metal parts, as well as elements made of stone and concrete. For a tree, such disks are not used.
Note! The use of angle grinders requires compliance with certain rules. One of them states that you can't use circles. larger diameter than indicated in the device passport.
Abrasive. They are highly versatile. Abrasive discs are used not only for cutting, but also for grinding and polishing surfaces. Products from this group are also used for wood processing.
These products are differentiated by one more sign - dimensions. The modern market provides wide selection products, the dimensions of which vary from 115 to 230 mm. The 115 mm wood grinder disc is the most compact and is used for fast and accurate cutting of material. It is worth noting that the largest discs are not suitable for working with wooden surfaces.
Types of wood discs for angle grinders: design options
Many experts do not recommend using a grinder for cutting and processing wood. This is due to the principle of operation of the device and the characteristics of the material itself. However, the variety of discs for angle grinders is growing every year. They can be divided according to the features of the work into several types.
Circular saws. Such wood circles for grinders are used, as a rule, for more technologically advanced equipment, but many install them on angle grinders. They are divided into two types: large diameter soldered and more compact, without soldering.
Chain. Ideal for working with wood materials. Many people are interested in the question of whether it is possible to saw a tree with a grinder. There is no single answer to it, however, chain products are maximally adapted for this purpose. The edge of the circle in this case is equipped with a chain on which the teeth are located. Such a design has many advantages. This nozzle is most commonly used for smooth cutting boards. With it, you can process other materials: chipboard, fiberboard, plywood.
Saws with a small number of teeth. This kind of circles was invented specifically in order to ensure maximum human safety when working with wood. Compact products belonging to this group have 3 teeth, and larger ones - 4. This group also includes cutting discs for a 125 mm wood grinder. These products do their job well. They can be used to cut wood along and across the grain. In addition to standard functions, such discs are used to organize grooves in workpieces.
Segmental (material - tungsten carbide). Such products appeared relatively recently, but have already gained immense popularity. Distinctive feature such products - the absence of teeth. The edge of the disk consists of segments that are characterized by high strength.
Helpful information! With the help of a segment nozzle, you can work with wood of any strength and viscosity. It is highly safe and is able to withstand even metal inclusions present in some blanks (self-tapping screws, nails, etc.).
Chain saw blades for wood: application advantages
In this case saw blade performed using a chainsaw chain. Such a nozzle is the most suitable for working with wood, as it has the highest efficiency. A chain drive on a tree for a grinder is also considered the safest. Using this attachment greatly reduces the chance of injury if the tool jams.
If the disk hits a solid element of the tree (for example, a knot) during operation, then the chain is not destroyed. This is done by turning the base. Such nozzles are very popular when it is necessary to clean the trunk of a tree from bark and knots.
Wood saw blades for angle grinders with a chain are used for various kinds of work. With their help, you can remove tree branches, as well as cut boards of small thickness. The functionality of chain products allows them to be used as peeling tools. They do an excellent job of removing the bark.
With the help of a saw blade, you can make an even cut of parquet boards, plywood, fiberboard, chipboard, as well as ordinary unedged and edged wooden products. It is important to remember that the thickness of the material to be processed with such a nozzle should be no more than 4 cm. Otherwise, the device is likely to overheat.
Cutting disc for wood for a grinder: features
For the manufacture of such products are used special material- tungsten carbide. This is explained by the following: when working with a grinder, there is a possibility that it will break out of your hands, so the material of the circle must have high strength characteristics. The use of tungsten carbide can significantly increase the safety of work, but the cost of such products is quite high.
Disks this type may have a different arrangement of teeth. A variety of types of products on this basis allows you to choose the most suitable nozzle for a particular situation. The shape and frequency of the teeth also play a very important role. The most common wheel size for working with wood is 125 mm. If you decide to choose the most universal option cutting saw blade for wood for a 125 mm grinder, then it is recommended to purchase a product with beveled teeth.
Helpful information! Wheels that have straight teeth are best for working with soft woods. Softwood boards are also processed using such nozzles.
These products may have teeth that resemble a trapezoid in shape. They are characterized by a wider operational scope and are used for cutting boards with an average density. With this wheel, you can cut the following materials:
- USB plates;
- wood fiber boards.
Saw blades for wood for a grinder of this type have some design features that are determined by their purpose. For example, during operation, products easily overheat, so they have special slots that can be empty or filled with copper. Such a measure allows you to compensate for the thermal expansion of the metal that occurs at high speeds. The width of such slots can be different, but not more than 2 mm. As for their depth, it does not exceed 20 mm.
Grinding disk for wood for a grinder: characteristics
With the help of a grinder, you can not only cut and saw off wooden parts, but also carry out peeling works varying degrees of complexity. The modern market offers a wide range of such nozzles. They are classified according to several indicators: form, design and purpose.
Peeling wheels are used to remove bark from logs or boards. Thanks to them, you can easily remove the excess part of the tree from the end surface of the board. They may have special spikes or crumbs.
Peeling discs for wood for grinders are also used to level the surface of the boards. Such circles are equipped with special spikes, which are placed on a flat plane. This feature is very useful, as it allows you to polish the boards from which the flooring is constructed.
On sale you can find peeling products consisting of twisted wire. They are usually called korshchekami. Such attachments for a grinder for woodworking are of two types, depending on the features of their structure. The first option provides for the presence of a base in the form of a glass to which the wire is attached. The second type is a disk with a wire fixed along the edge.
Brushes are used to eliminate paintwork materials from wooden surfaces. It is important to note that most often such nozzles are used to remove paint and rust from metal pipes.
Note! For wooden parts it is necessary to choose a thinner wire that will not damage the workpiece itself. These products are suitable for different types of wood.
Peeling discs for wood, equipped with wire coils, are also used for brushing. This event allows you to give wood unusual view, artificially age it. However, with the help of a grinder with a peeling wire nozzle, only small volumes of wood can be processed. Thus, for brushing in industrial scale this item is not recommended.
Grinding and polishing discs for wood on a grinder
Grinding and polishing wood is carried out using special nozzles that are used for grinders. Such products include metal base on which the grinding wheel is fixed. Fastening is usually done with Velcro.
To use such a wood attachment for a grinder, it is necessary to fix it with a key (open-end) on the tool shaft. Quite often, it is implemented complete with a special transition element, thanks to which it becomes possible to quickly attach to the drill chuck. In turn, polishing requires the use of a more gentle material. Therefore, nozzles of this type are equipped with felt discs. Their fixation is also carried out with Velcro.
Another option for a grinding wheel for a grinder is a petal one. Its design fully justifies its name. It consists of a large number of sandpaper petals, closely spaced to each other. If desired, you can select the desired paper grain, which allows you to process wooden materials varying degrees density.
Although the grinder is not considered the preferred tool for woodworking, sanding attachments are very common. It is worth noting that grinding in this way is not suitable for smooth surface treatment, since even the most gentle options for angle grinder discs leave small scratches on the wood. If you decide to perform this process as efficiently as possible, then experts recommend purchasing a special device - a grinder. It is customary to use angle grinders for materials that will subsequently be painted with paint.
Grinding wheels for grinders on wood: rough grinding
Grinding wheels that are used for angle grinders differ in the material of manufacture, shape and operational purpose. The process of wood processing, as a rule, proceeds in two stages. First of all, it is produced rough grinding, after which the material is subjected to finishing. For rough polishing, several types of nozzles are used:
- peeling;
- corsets;
- end circles.
Grinding wood with a grinder using a peeling product is most often used to remove a layer old paint. Sometimes nozzles of this type are used to remove varnish if it cannot be removed manually. Such circles can have a different relief, the characteristics of which determine the efficiency with which the product will function.
Brushes are used for sanding different types of wood. Products that belong to this group are classified according to their design, the direction of the wire bundles and their diameter. Depending on the rigidity, they are also divided into types. If necessary, it is possible to select the right tool corresponding to one or another variant of grinding.
Helpful information! For rough processing, a larger diameter wire is used.
End discs for grinding wood on a grinder are used when it is necessary to adjust the size of the part from the end. Often, such products are used for the usual alignment of the side surface with uneven cuts. The principle of operation of the end nozzle resembles the operation of a file. The difference in this case lies in the high efficiency of the angle grinder.
The use of grinding attachments greatly simplifies the processing of wooden blanks. Such products allow for the restoration old furniture, removing paints and varnishes from its surface.
Grinding discs for grinders: flap discs
After rough processing, it may be necessary fine finish. Of course, if the wood is to be further painted, there is no need to bring its surface to a perfectly smooth state. However, in most cases finishing is a necessary step. To perform grinding, you can use a common nozzle - a petal circle.
The design of the petal disc model, as mentioned above, includes sheets of sandpaper that have a trapezoidal shape. Their grain size is selected depending on the type of wood and the specifics of the work. grinding disc on a tree of this kind is one of the most common. It ensures gentle handling of the material and is characterized by a high degree of safety. It is almost impossible to get injured using this disc.
From size abrasive coating on the petals depends on the efficiency and speed of wood processing, as well as its appearance. For maximum smoothness, it is customary to use fine-grained products. Experts recommend using several of these at once grinding wheels on wood. This will enable you to quickly rough cleaning, then finish the work with soft petals, bringing the workpiece to the desired degree of smoothness.
The use of such a nozzle requires a certain skill from a person. Therefore, before using the petal circle, it is recommended to practice on wooden parts.
Grinding wheel for grinders: soft processing and polishing
For soft grinding, special discs are used, which appeared on the market not so long ago - just a few years ago. Such circles are characterized by a high degree of functionality and can have different grain sizes.
Helpful information! Unlike petal nozzles abrasive particles are fixed with Velcro on the surface of the disc, and not on its end part.
Grinding disc for wood grinder of this type has one advantage - ease of replacement. This procedure is performed without removing or disassembling the main nozzle, so using such discs is quite convenient. Sticky nozzles can be easily purchased on the construction market or ordered on the Internet. Choice desired grit in this case is not a problem. With these devices, you can wooden surface to the desired state.
Polishing, which is carried out after grinding, can be carried out using special felt wheels. These tips provide maximum smoothness. working surface which is difficult to achieve with other tools. A large number of revolutions of the angle grinder contributes to uniform polishing of the wood.
Felt discs for the grinder include wool (tightly pressed), which can have different characteristics (depending on the need). On the modern market, you can find different types of nozzles in their composition:
- fine-haired;
- semi-coarse;
- coarse-haired.
Woodworking attachments are different high efficiency and quality. Sequential use of these disks allows you to achieve incredible results. The wood surface after their use can be compared with a mirror.
Safety rules when working with a wood grinder
The use of angle grinders for wood processing requires a serious approach. Wrong work with a grinder can lead to injury, so before using it, experts advise you to pay attention to some rules for operating the device. For example, before replacing one nozzle with another, you need to disconnect the angle grinder from the network. How to change the disk on the grinder? To answer this question, it is necessary to determine the type of circle. Some products are installed without removing the main nozzle. However, in most cases, it is required to unscrew the flange holding the element.
Note! In no case should you remove the casing, which is used for protection, from the grinder. In the event of a wheel breakage, this element will protect your face and other parts of the body from injury from splinters.
Treatment wood material with the use of angle grinders must be carried out with protective gloves. Sawing and cutting discs for wood are best used on medium (in terms of power) devices. This is explained quite simply: if the saw jams, then you have a high chance of holding the tool in your hands. With a powerful device, this will be much more difficult.
For sawing logs and boards, it is recommended to use nozzles that have fine teeth. The smaller their dimensions, the less effort will be required to cut. Among other things, it reduces the likelihood that hard wood fibers will meet in the path of the disc.
Any Bulgarian without fail must be equipped with a speed regulator, which must be moved to the minimum position. While working with cutting discs for an angle grinder it is very important to observe a right angle. Otherwise, the cutting process will be uneven, and the device itself may jam.
Angle grinder can be used for wood processing, however, before use, you should study technical features various nozzles. Products that are used for grinding and polishing do not carry any danger and are easy to use. Blades for sawing wood material require careful selection. During operation, it is necessary to observe the safety regulations and not deviate from them.
The grinder, or angle grinder, is a tool that has no analogues in its popularity. If initially the scope of its application was limited to the operations that determined the name of the unit (grinding and technologically related types of material processing), then gradually the range of application of this power tool and the replaceable nozzles produced for it expanded incredibly. Now the grinder is cutting metal, grinding various surfaces, cleaned of dirt and old paint and much more.
The presence of a rotating rod made it possible to adapt the grinder for sawing wood. They began to try to install saw blades manufactured for circular saws on it. Manufacturers of bits for this tool have responded by developing and producing special wheels, similar in action to circular saw blades, but adapted to high speeds and increased safety requirements. hand tool.
Features of the use of grinders on wood
Sawing wood with a hand tool is associated with a number of features. Wood is a heterogeneous natural material, its density is unevenly distributed. After a relatively loose area, a denser one may suddenly begin, there may be defects hidden in the thickness, filled sometime, in the process of tree growth, with resin. There may be developed or underdeveloped knots, and sometimes ingrown foreign inclusions (nails, wire, shot or even bullets that hit the tree while still in the forest, for example, during hunting).
Thus, it is almost impossible to unambiguously choose the mode of operation of a cutting hand tool. This can lead to jerks, the energy of which will have to be extinguished with the help of hands, in special occasions the instrument may even break free. If a cutting tooth hits metal, it can be broken and ejected by the next tooth with enough speed to cause serious injury.
Unlike circular saws (stationary or mobile), the grinder has a higher number of revolutions on the pulley, this is necessary to perform its main function - grinding.
When adapting this tool for sawing wood, the craftsmen often removed the protective cover, which is categorically unacceptable, given the above features of wood, such as natural material with unpredictable properties. If the need to use the grinder as a circular saw nevertheless arose, in order to ensure safety and get the greatest effect, you need to purchase a special disc designed specifically for this tool.
Saw blades for angle grinders
Wood saw blades for angle grinders were developed by various manufacturers and, accordingly, have several varieties. The simplest and definitely the most a budget option- install on the grinder a disk for a circular of appropriate sizes - both the outer diameter and the diameter of the inner mounting hole. For a grinder, which, according to its dimensional characteristics, is classified as small, a circle of 125x22 mm in size is suitable.
Technically, a disk with a diameter of 230 mm can also be installed on a small angle grinder, but for this you will have to remove the protective cover, which is absolutely unacceptable. An angle grinder user's hands are in close proximity to the rotating work surfaces and any abnormal situation can cause serious injury. The use of such a circle on an angle grinder can cause serious safety violations and is strongly discouraged for beginners.
Any misalignment, including those associated with the uneven structure of the wood, can cause the disc to jam and, as a result, a sharp jump in the entire unit to the point that it can escape from the hands and make a dangerous unpredictable flight. The circular saw blade is not designed for such fast revolutions that the grinder spindle gives out, this results in its excessive heating, which affects the strength of the steel. As a result, when skewed, the saw wheel can be destroyed with fragments flying at high speed in unpredictable directions.
Special attachments for sawing wood, designed for UMSh, have significant differences from the circular saw blade. Consider the most common nozzle options for sawing wood. On sale you can find saw blades similar to circular saws, which have an increased tooth set, which significantly reduces the likelihood of jamming. In addition, the differences for the manufacture of such a disc is that other alloys are used, which reduces the risk of destruction of the disc when it is heated.
Further attempts to secure the disc from jamming led to the combination of circular and chain saws in one product. The chain, similar to the chainsaw chain, moves freely along the working surface of the disc, which absolutely eliminates jamming. There are quite a few modifications of such a hybrid. Craftsmen with the help of such a combined saw successfully saw branches and can even saw not very thick trees.
Another direction of adaptation of circular saws for use on grinders was to reduce the number of teeth. Discs with a diameter of 115 mm or 125 mm are equipped with only three teeth, a disc for a large grinder of 230 mm can have 4 teeth. In this way, manufacturers have tried to compensate for the high speed of rotation of the saw blade.
A completely new direction of evolution circular discs was marked by the invention special nozzle suitable for working on different material. Such a universal disc is made of a special composition - tungsten carbide. There are no teeth on this saw blade at all. This type of disc allows you to cut well the most different materials, it can be considered the most safe disk for sawing wood from all that are used on angle grinders.
Sawing with a grinder
If there is no other way out, that is, there is no special saw for wood (it has broken) or urgent little work is required, of course, the grinder can help out. However, we must remember that the main purpose of this machine is still not in sawing wood. For use of angle grinders as a manual circular saw, you will need to stock up on one or more specialized nozzles.
To avoid distortions and jamming, you need to saw in a comfortable position, and fix the tool with both hands. The best results can be obtained if you do not remove the special guide handle, with its help it is much easier to control the angle grinder. Correctly sawing off a workpiece with a grinder is not at all easy, due to the heterogeneity of the wood, the mode of operation will constantly change. Therefore, while working, it is better not to be distracted and monitor how the cut is going.
If you need to use a grinder for sawing wood, it is better to use a circle of small diameter 115 or 125 mm. The 230th circles are much more dangerous, they have a large inertia, in case of an emergency situation, it is not possible to stop their rotation immediately. Installing the saw blade on the angle grinder \. the direction of rotation must be taken into account, it is often indicated on the disk itself in the form of arrows. The teeth of the circular saw have special solderings that increase their performance. A disk installed on the contrary will not be easy to cut. When purchasing saw blades for grinders, you need to pay attention to the following parameters:
- saw blade diameter;
- required depth of cut;
- shape and number of teeth.
If you plan to cut wood infrequently, then it is better to choose a saw blade with teeth that have a variable set. If the main material on which it is supposed to work is chipboard, a saw with a large number it is better not to take teeth. If the grinder will be used in the construction of a log structure, it is better to purchase a chain saw. Sawing boards will require paying attention to the depth of cut and the diameter of the blade.
A circular saw will last longer if the teeth that have become dull during operation are sharpened, it is better to entrust this to a specialist. In order to sharpen the saw, the same grinder can be used only with a special abrasive nozzle. Also for this operation you will need a stationary vice.
