How to sharpen the fugitive circular knives. Disk thickness

Sharpening knives for woodworking machines

Strict knives require timely care because:

  • Dumb surfaces poorly process wood;
  • When processing soft species with blunt knives, the surface is covered with pile and irregularities;
  • Erased edges are crumbling;
  • During planing with dull edges, the engine and power nodes are overloaded.

Attempts to sharpen the blades with your own hands using diamond bars, as a rule, give a short.Term result. Due to poor-quality editing, the blade has to be dragged soon. Therefore, professional joiners use only mechanical sharpening.

Types of discs and teeth, as well as features of their restoration

The teeth of the disk are made of a specialized alloy of tungsten and cobalt (this is evidenced by the marking on the “front” side of the disk).VK, VK6, etc.).

Important! The durability of the disk depends not only on the alloy, but also on the quantity and correctness of the work performed.

The tooth has the following geometric planes:

When crossing geometric planes, two workers (cutting) faces occur:

  • Straight. With their help, wooden sheet material is sawn in the longitudinal direction.
  • Trapezoidal. This form ensures the duration of sharpening when working with wood of different hardness.
  • Beveled. The main or auxiliary line has a corner bevel, which allows the disk to be cut not only into a homogeneous structure of the tree, but also into glued wood-bearing plate, wood-fiber slab. In addition, a “mowed tooth” can cut plastic.
  • Conical. Universal form, which allows you to perform longitudinal and transverse cutting. This form has one drawback, which is concluded in the rapid loss of the severity of the working face.

Varieties of sharpening cutting teeth

For a better understanding of how to sharpen disk saws, you need to study the features and structure of those parts of the tool through which the material is sawing. Cutting teeth are the main element involved in sawing wood.

They are made of carbide metal. The cutting teeth consist of 4 working flat surfaces: the front (a), the posterior (b) and two lateral planes (c), which have an auxiliary role. Through one main (1) and two additional (2 and 3) cutting edges, the intersection lines form, each indicated working plane.

Depending on its configuration, the disc saw can have various types of cutting teeth:

  • Direct type of teeth. Often used for accelerated prophy. Do not have the ideal quality of the saw.
  • Mowed (oblique) type of teeth. Have a characteristic corner cut on the right and left rear surfaces. In some cases, the discs have teeth with a different side of the bevel that alternate throughout the saw of the saw. Using such discs, you can saw wood, wood-bruise and various plastic. A large bevel angle provides high.Quality cut without chip on the cutting edge.
  • Trapezoidal type of teeth. The cross section of the cutting surfaces has a trapezoidal form. This configuration allows you to work without blunting for a long period of time. Often the disk has straight teeth that alternate with trapezoidal. In such cases, the trapezoidal element plays the main role in black sawing, while with the help of direct type of teeth, cleaning processing is performed.
  • The conical type of teeth. They have a cone.Shaped look. As a rule, they perform an auxiliary function for preliminary incisions on the laminate. The conical type of teeth is processed by the specified flooring. Such a saw allows you to prevent chips on the material, as often happens when using the main saw.

Geometry of carbide tooths

The teeth drank, as well as integral of high.Speed steel, and those equipped with carbide attacks have a specific shape. Some look like an isosceles triangle, other sickle.Shaped shape, others are generally made as a trapezoid. This form of teeth meets several tasks.

Firstly, each form has several surfaces forming cutting edges. Secondly, the view depends on the purpose of the tool: a small even tooth is suitable for cutting sheet thin materials, and the trapezoid is suitable for working with solid wood. Thirdly, the duration of use depends on the form: the trapezoid lasts longer than the straight or sickle.Shaped type.

For domestic use, discs are usually used:

  • Direct.Type teeth. For black cutting of the material. The main advantage of the quick sawing of the material.
  • Inclined and sickle.Shaped teeth. Designed to work with thin materials.
  • Teeth with a bevel, are used for finishing cutting material.
  • Trapezoidal appearance. Saws for prolonged work with materials of different densities.
  • Conical teeth are suitable for finishing work with materials that have a smooth, glossy coating.

As you can see, it is very difficult to sharpen such discs without knowledge of sharpening technologies. The most difficult thing is to withstand the “correct” angle, so that the geometry of the cutting edge and the shape of the tooth itself were achieved on all teeth.

Incorrect sharpening of the circular saw disk at best leads to the fact that the cut will turn out to be uneven, with crooked edges. And in the worst case, due to the beating that appeared, you will have to repair the electric saw itself.

Principles and angles of tightening

There are four main angles of sharpening on the edges of the saw. They, together with the shape of the tooth, can act as the main operational characteristics of the tool. To describe each tooth are used:

These characteristics can depend on the type and weight of the circular saw, its purpose, as well as the density of a particular surface.

Sharpening angles in the diagram

Based on the parameters indicated above, you can divide all circulars into several types:

  • To cut through the longitudinal holes. When performing this task, the front angle of sharpening from 15 to 25 degrees should be used.
  • For transverse cutting. In this situation, the front angle can vary from 5 to 10 degrees.
  • Universal sharpening. To perform any operations, the saw is pulled at an angle of 15 degrees.

The size of the angle is set not only from the direction of movement of the saw, it is also associated with the material of the workpiece. If you need to cut very hard materials, then you should choose the smallest angle. To work with softer products, the angle increases.

Important! If a saw made of carbide material is used for a long time, then maximum wear can be seen on the upper cutting edge. With a detailed examination of the plane of the tooth, it is clear that the front surface of the material suffers most strongly.

Owners of strict, fugitive machines and electrical roofs are dedicated to.

Each winner of the strict, fugitive machines and electrical shirts faced the need to sharpen knives for their equipment. Having a specialized small machine for sharpening strict knives, it will not be difficult for you to do this. It will also be faithful to contact the sharpening workshop where your strict knives will be quickly and inexpensively imprisoned.

Is it possible to sharpen strict and fugitive knives at home?

Maybe. And you can sharpen strict knives on a sharpener. Yes, on a grind. But only for this you will need a modern low reserved sharpened (or rather even a sharpening machine) with water cooling. The best option is to use Tormek T7.

Naturally, such knives do not sharpen in manual. To sharpen them, we use a special TORMEK SVH 320 device.

sharpen, fugitive, circular, knives, disk

For high.Quality sharpening of strict knives, it is required even and not greasy sharpening stone. We align the Tormek SG 250 shred stone using a device for aligning and editing the TORMEK TT-50 SHILSTS SHARTS COMPLE TORMEK T7.

After editing, smoothing the ground with a bar with a bar for cleaning and aligning the sharpening stone stone SP-650.

Having prepared a ground stone, we will start sharpening strict knives. Remove universal emphasis and install a special emphasis on Tormek SVH 320.

We screw into it the screw regulating the angle of inclination of the hidden knife relative to the sharpening stone. With this screw, we will be able to set the necessary angle angle.

We take the holder of the blades that is in the SVH 320 set and install our strict knife in it.

Planer blade sharpening machine

The manufacturer Tormek recommends sharpening blades and knives with a width of at least 13 mm. The length of the knife is not so fundamental, t.To. It is possible to rearrange a long knife in the holder. However, you can argue with this, t.To. I have doubts about the convenience and quality of sharpening long knives with a rearrangement. It is very important to correctly install a knife in the holder, t.To. Otherwise, it will be sharpened with distortion. When installing a knife into the holder, we abut the knife back at point blank and clamp it with the holder screws.

To accurately exhibit and control the installed angle of sharpening with a marker, we paint the sharpened knife chalk.

Now, by the nature of the traces of the sharpening stone on the painted blade, we can evaluate the angle of inclination and adjust it in the necessary proportions.

Install the holder with a knife to the emphasis fixed on Tormek. The regulation of the stops of the stop we lower the holder with the knife before touching the ground stone.

Adjusting screw propagation of the corner, set the angle of the knife relative to the stone. Rotating the hand of the hand of the hand of the handle by hand on the nature of the stained collections, we determine whether it is necessary to adjust the angle of inclination of the holder with a knife. If necessary, we adjust.

So, having set the necessary angle, we proceed directly to sharpening. For a fixed removal of the metal from the hidden knife, there are two runners with a 0.1 mm division scale. It is assumed that the sharpener can adjust the amount of removal in accurate proportions. Mandatory after each feed, it is necessary to reliably fix the emphasis with two clamping screws so that there are no fluctuations in the stop during sharpening.

DIY SHARPENER BANCH PLANER BLADE

Sharpening of the knife is carried out by moving to the right to the left of the holder with a knife relative to the sharpening stone.

It is not permissible for the hidden knife to go beyond the edge of the sharpening stone. It is recommended to stop the holder 12 mm to the edge of the circle. To exclude errors, stops are provided that can be moved and set by the required move of the holder. We did not use these stops, relying on our experience.

It should be noted that during the sharpening of the strict knife, the accumulation and distribution of water on the blades of the knife from the sharp.Scale stone occurs, which leads to the drainage of the water to the housing of the sharpening machine and to the floor. And this water flows a lot. Therefore, it is necessary to regularly add water to the TORMEK water container. To reduce the spill of water to the case, it is recommended to put the machine under the right leg of the machine (under the hiker leather circle) a lining with a height of 6 mm.

However, this measure does not allow to completely eliminate water from the Tormek T7 case. However, Tormek T7 has good protection and such water baths are not afraid of it.

Another nuisance when sharpening the strict knife was that the SG 250 stone was constantly ragged, which reduced sharpening efficiency and increased sharpening time. I had to regularly clean it with Bar for cleaning and aligning the SP-650 sharpening stone. Certainly is of great importance from which material the knife is made.

Owners of strict, fugitive machines and electrical roofs are dedicated to.

Each winner of the strict, fugitive machines and electrical shirts faced the need to sharpen knives for their equipment. Having a specialized small machine for sharpening strict knives, it will not be difficult for you to do this. It will also be faithful to contact the sharpening workshop where your strict knives will be quickly and inexpensively imprisoned.

Is it possible to sharpen strict and fugitive knives at home?

Maybe. And you can sharpen strict knives on a sharpener. Yes, on a grind. But only for this you will need a modern low reserved sharpened (or rather even a sharpening machine) with water cooling. The best option is to use Tormek T7.

sharpen, fugitive, circular, knives, disk

Naturally, such knives do not sharpen in manual. To sharpen them, we use a special TORMEK SVH 320 device.

For high.Quality sharpening of strict knives, it is required even and not greasy sharpening stone. We align the Tormek SG 250 shred stone using a device for aligning and editing the TORMEK TT-50 SHILSTS SHARTS COMPLE TORMEK T7.

After editing, smoothing the ground with a bar with a bar for cleaning and aligning the sharpening stone stone SP-650.

Having prepared a ground stone, we will start sharpening strict knives. Remove universal emphasis and install a special emphasis on Tormek SVH 320.

We screw into it the screw regulating the angle of inclination of the hidden knife relative to the sharpening stone. With this screw, we will be able to set the necessary angle angle.

We take the holder of the blades that is in the SVH 320 set and install our strict knife in it.

The manufacturer Tormek recommends sharpening blades and knives with a width of at least 13 mm. The length of the knife is not so fundamental, t.To. It is possible to rearrange a long knife in the holder. However, you can argue with this, t.To. I have doubts about the convenience and quality of sharpening long knives with a rearrangement. It is very important to correctly install a knife in the holder, t.To. Otherwise, it will be sharpened with distortion. When installing a knife into the holder, we abut the knife back at point blank and clamp it with the holder screws.

To accurately exhibit and control the installed angle of sharpening with a marker, we paint the sharpened knife chalk.

Now, by the nature of the traces of the sharpening stone on the painted blade, we can evaluate the angle of inclination and adjust it in the necessary proportions.

Install the holder with a knife to the emphasis fixed on Tormek. The regulation of the stops of the stop we lower the holder with the knife before touching the ground stone.

Adjusting screw propagation of the corner, set the angle of the knife relative to the stone. Rotating the hand of the hand of the hand of the handle by hand on the nature of the stained collections, we determine whether it is necessary to adjust the angle of inclination of the holder with a knife. If necessary, we adjust.

So, having set the necessary angle, we proceed directly to sharpening. For a fixed removal of the metal from the hidden knife, there are two runners with a 0.1 mm division scale. It is assumed that the sharpener can adjust the amount of removal in accurate proportions. Mandatory after each feed, it is necessary to reliably fix the emphasis with two clamping screws so that there are no fluctuations in the stop during sharpening.

Sharpening of the knife is carried out by moving to the right to the left of the holder with a knife relative to the sharpening stone.

It is not permissible for the hidden knife to go beyond the edge of the sharpening stone. It is recommended to stop the holder 12 mm to the edge of the circle. To exclude errors, stops are provided that can be moved and set by the required move of the holder. We did not use these stops, relying on our experience.

It should be noted that during the sharpening of the strict knife, the accumulation and distribution of water on the blades of the knife from the sharp.Scale stone occurs, which leads to the drainage of the water to the housing of the sharpening machine and to the floor. And this water flows a lot. Therefore, it is necessary to regularly add water to the TORMEK water container. To reduce the spill of water to the case, it is recommended to put the machine under the right leg of the machine (under the hiker leather circle) a lining with a height of 6 mm.

However, this measure does not allow to completely eliminate water from the Tormek T7 case. However, Tormek T7 has good protection and such water baths are not afraid of it.

Another nuisance when sharpening the strict knife was that the SG 250 stone was constantly ragged, which reduced sharpening efficiency and increased sharpening time. I had to regularly clean it with Bar for cleaning and aligning the SP-650 sharpening stone. Certainly is of great importance from which material the knife is made.

When you need to sharpen a disc saw

There are absolutely definite signs by which you can judge the condition of the tool. Sharpet saw is necessary when the following is clearly manifested:

  • During operation, smoke, a specific smell of balled wood, a casing covering the teeth of a saw, begins to quickly heat up.
  • When moving the tool along the workpiece, you need to make significant efforts, as if to push the saw forward.
  • After the cutting of the material and visual examination of the sawn edge, black fibers or many chips, fiber dummy, and broken up areas are visible.
  • With a careful examination of the teeth of the saw in the magnifying glass, you can see that the cutting parts are not sharp, but rounded edges.

All this requires immediate termination of work, otherwise there is a great risk of damage to the material and wear of the disk saw to such a state where sharpening will not help it no longer.

How to make a machine with your own hands?

To sharpen a fugitive knife, it is necessary to use special sharpeners. This is especially important when fugitive, strict and other woodworking equipment is often used. The grinding machine has compact dimensions, it can be installed even in a garage or small shed in a summer cottage. Before starting the assembly, it is necessary to prepare the appropriate tools that will be used during the assembly of the grinding machine:

You need to start assembling the machine with a search for a suitable plank. It is one of the most important details for the grinding machine. All fugitive knives are quite narrow, so you can sharpen them only with the help of a suitable.Based plank. Then the sharpening work will be high.Quality, safe, fast. Planeshaba occupies the main part of the cost of all equipment. Making a grinding machine independently more profitable, expensive details for it are not required. The manufacture will be quite justified if you often have to carry out woodworking.

Planes need to buy new ones, it is recommended to take elements of American or German production. They have the highest quality, and the cost ranges at 25,000. Next, you need to choose the engine for the future sharpener, it is best to take the engine by 1-1.5 kW, you can even use a used element. For the machine, motors from old washing machines are great, but you must first make sure of the engine performance.

The motor is attached under the countertop, the planhab is mounted to the moving part.

It is imperative to provide the presence of a button for turning on/off the machine. It should be located in the area of ​​access to the hand. The planhab on top is covered with a casing, which is made in the form of a square. One corner of the casing must be cut off, since from this side to be sharpened with fugitive knives with your own hands. A hole is made in the lower part of the countertop, it will be intended for the vacuum cleaner pipe, with which all the contaminants that occur during sharpening will be removed. In addition to sharpening of fugitive knives, such a machine can be used for other works, for example, to process the axes of the ax, saw and other tools used in the summer cottage.

sharpen, fugitive, circular, knives, disk

Sharpening of fugitive knives can be carried out by various methods. Special sharpeners are suitable for this. However, a compact grinding machine can be assembled by yourself. It will be used to sharpen various tools, including saws and axes.

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