How to Sharpen a Victory Tipped Circular Saw • CIMFLOK.COM

Ways to sharpen circular saws

Any sharpening machine can be used to form a new cutting edge. It is important to initially choose the right emery wheel and sharpen the edge with it. To do this, you must use corundum or diamond models.

The best option is to use special equipment designed to do this job. But due to its high cost, in many cases, its acquisition is impractical. An alternative way is to use a grinding machine with the ability to change the angle of the corundum disc.

In no case should you do the sharpening by hand yourself. First, it will take a very long time. Secondly, the result obtained will not meet the standards. If it is not possible to sharpen the saw blade on wood yourself, it is recommended to use the services of specialized companies.

Sharpening circular saws for wood with your own hands: geometry of corners, machine tools

Carbide tipped circular saw blades can lose their original properties during long-term use. But this does not mean that a new cutting tool should be received. Almost always, sharpening can be done at home using any suitable machine.

How to sharpen a soldered saw blade at home. choosing a machine. How to sharpen a circular saw with victorious solders with your own hands at home? How to determine the sharpening angles?

Ways to Extend Saw Blade Life

The process of forming a new cutting edge is laborious and time consuming. Therefore, it is recommended to fulfill a number of conditions to increase the life of the disk.

First of all, you should read the manufacturer’s recommendations. They indicate the number of revolutions (maximum and minimum) for different types of processed materials. For metal, this parameter should be less than for wood.

Hard solders have a long service life. Dear visitors of the site “homemade friend” today we will consider a detailed step-by-step instruction on how to independently convert a circular saw into a stationary one. However, they are more likely to chip and break off. The alternative soft is practically not subject to such defects. But her service time is shorter than that of a solid.

The appearance of roughness on the cutting surface is not allowed. In the future, they can lead to the appearance of chips and cracks.

The video shows an example of a do-it-yourself disc sharpening machine:

Ways to sharpen circular saws

The best option is to use special equipment designed to do this job. You can sharpen a circular saw both with a special machine and with the help of available tools. But due to its high cost, in many cases, its acquisition is impractical. An alternative way is to use a grinding machine with the ability to change the angle of the corundum disc.

Do-it-yourself professional sharpening of circular saws is performed according to the following rules:

the main deformation occurs at the upper edge of the tooth. The edges are rounded from 0.1 to 0.3 mm. It is from this place that you need to start processing;
sharpening is carried out along the leading and trailing edges. This will provide the ability to repeat the procedure up to 25 times;
the amount of removal should not exceed the value of 0.05-0.15 mm;
the level of machining of the front and back edges must be the same.

After the sharpening of the discs on the wood is completed, it is recommended to finish it with fine-grained sandpaper. This can be done manually or using a special machine.

Experts advise using special corundum discs, the end surface of which has a groove of a special shape. It will facilitate the procedure.

Types of cutting teeth

There are four planes on the surface of the teeth. front, back and two side.

At the moment of intersection with each other, they create a single cutting edge, due to which the sawing of surfaces occurs.

There are several forms of teeth:

Straight tooth. Most often it is used only for a quick longitudinal cut. During such work, quality and accuracy are practically unimportant.
Oblique tooth. The back plane of such a part is tilted to the right or left. On saws, these teeth often alternate, which is why they are called “alternately cut”. These teeth are most commonly used in tools. The size of the corners can be different, this is due to the coating of the treated surface. wood, chipboard, plastic. They are used for longitudinal and transverse movements. A large angle of inclination on the tools is used when cutting boards with double-sided lamination. This helps to avoid chipping of the material. The larger the chamfered corner, the easier the saw will cut through the surface. But this greatly increases the likelihood of tooth breakage. On some products, the teeth are inclined not only at the back, but also at the front.

Important! Each type of teeth requires a thorough grinding when sharpening. You can’t sharpen them at the same angle.

How to determine wear?

Checking the saw blade for wear is an important issue that should be given special attention. Deep damage leads to the inability to sharpen the circle. There are three main signs by which you can understand that the saw needs to be sharpened or replaced:

Excessive heating of the protective cover and the formation of smoke. The circular saw has a special cover that signals when the saw has become blunt due to heating. In especially difficult situations, smoke may appear from it.
Sometimes the saw device involves a mechanical feed (if you need to adjust the pressure with your own hands). In such a situation, wear can be noticed if the pressure has to be increased.
If carbon deposits and strong unpleasant odors form on the workpiece when sawing wood.

All situations described above tell the user that the device should be sharpened.

How to sharpen: basic methods

There are two methods available for sharpening circular saws. manual and machine. In order to sharpen the disc correctly at home, you need to take into account some of the nuances.

How to determine the sharpening angle of a circular saw

The best option is to have an original template, according to which you can correct the geometry of the cutting edge. Often it is made of thin-walled stainless steel, less often. of thick cardboard.

Carbide teeth are manufactured in accordance with GOST 9769-79. But their geometry and geometric dimensions are determined by the manufacturer based on the purpose of the saw. If there is no template, it is necessary to independently determine the required sharpening angles. To do this, it is recommended to use a pendulum goniometer.

How to sharpen saw blades yourself with a conventional tool

Sharpening carbide discs is not at all difficult with a simple device, and such discs serve times.

When choosing an abrasive wheel, it is necessary to find out that its surface is a little granular, since this way a suitable surface cleanliness of the sharpened tooth is achieved. Otherwise, during work, chips, notches and other imperfections will remain on the material.

To process victorious tints, the speed of rotation of the sharpening circle must be more than 15 m / s, in other words, with a diameter of 120 to 125 mm, the speed of rotation must become like in a cinema 1500 rpm.

There are special devices for sharpening soldering. sharpening machines, the advantage of which is:

Variability of movement of both the machine tool and the abrasive wheel;
Ensuring an even sharpening angle.

Further actions are performed manually. turning the saw in a circle (per tooth), the next grinding, checking the volume of metal removed. Such mechanisms are great for handling soldering at home.

Measuring the degree of sharpening of a circular saw

In most cases, circular saws with victorious solders are rarely used, but for significant amounts of material and for a long time. Therefore, it is normal that the incisors begin to grind over time. This product should be sharpened as needed. Determining the degree of sharpening is quite simple:

When sawing the material, irregularities, notches, chips begin to appear, and when cutting wooden objects. a characteristic smell and black marks on the material;
Working on the machine becomes more difficult as more effort is required, resulting in a heavy load on the motor.

Important! Lack of observation of the sharpness of the cutting edges of the disc can lead to the fact that the product can no longer be sharpened or repaired at all. Therefore, it is worth carefully monitoring the condition of the instrument.

It should be noted that, as a rule, these machines are equipped with protective relays. But if there are none, the device can fail faster if sharpening is incorrect or not done in time.

How to sharpen a victorious saw blade?

To be able to sharpen a saw blade with victorious soldering, you need to take into account certain features of this product and select the tool most carefully.

Manual way

It is possible to independently sharpen the teeth by hand using a file, so that it is of high quality, if they do not have a bevel, that is, the surface of the front face is perpendicular to the surface of the blade. The process looks like this:

A block is harvested from dense wood with a section of somewhere 50×50 mm and a length of 100 mm. The sides of the bar should be located strictly perpendicular to each other.
Mark with a marker any tooth that will be reportable and the first to be processed.
The saw blade is clamped in a vice together with a bar so that the front edge of the workpiece is flush and in the same plane with the surface of the bar (in this case, the bar acts as a guide for the file).
A thin file (its thickness should allow it to fit freely into the cavity between adjacent teeth) is applied to the surface of the tooth to be treated and at the same time to the bar and methodical movements back and forth, sharpening is carried out.
This is how each tooth is gradually sharpened, monitoring the condition of the bar and, when working out its surface, slightly shifting the plane.

Materials used and the sharpening process of a circular saw blade

When working with a circular saw, most often the main edge becomes dull. In the process of cutting, the main emphasis is on it, therefore it is necessary to ensure that it does not round off by more than 0.3 mm, since difficulties may arise during the subsequent sharpening of the cutters, not to mention a decrease in productivity.

Auxiliary planes are also subject to wear (albeit to a lesser extent), especially when working with massive products.

To sharpen the teeth of circular saws with victorious teeth, high-strength materials are used. diamond wheels, silicon carbide (green) wheels, etc.

Important! Before starting the process, you must make sure that the device is clean, that is, make sure that there is no dirt or water on the surfaces to be treated. And it will also be useful to treat the diamond wheel with cutting fluid, since there is a high probability of rust formation when cooled with plain water.

When choosing an abrasive wheel, you should pay attention to the fact that its surface is slightly grainy, because this is how the desired surface cleanliness of the sharpened tooth is achieved. Otherwise, when working on the material, chips, notches and other defects will remain.

To process victorious tints, the rotation speed of the sharpening wheel must be at least 15 m / s, that is, with a diameter of 120 to 125 mm, the rotation speed must be at least 1500 rpm.

There are special devices for sharpening soldering. sharpening machines, the advantage of which is:

Variability of movement of both the machine tool and the abrasive wheel;
Ensuring an even sharpening angle.

Further actions are performed manually. turning the saw in a circle (per tooth), subsequent grinding, checking the volume of metal removed. Such mechanisms are great for handling soldering at home.

How to sharpen your circular saw blades, the easy way.

Sharpening types

The process itself is subdivided into three types:

Sharpening the front surface of a straight tooth

The tooth and the abrasive wheel are set perpendicular to each other, bearing in mind that the saw itself must be in a horizontal position. In the event that the machine does not have an angular tilt scale, you can use a pendulum goniometer. Next, you need to firmly fix the tools.

The process itself is the contact of the abrasive wheel and the ground surface back and forth by means of a mechanism in the machine, while simultaneously pressing the tooth to the wheel in manual mode. This process is repeated with each saw tooth.

For convenience, you can make a mark on the tooth from which sharpening began.

Sharpening a tooth beveled on the anterior surface

This type of sharpening provides for the execution of the same actions as before, with the difference that the angle of inclination must be changed in accordance with the location of the teeth. You can measure the slope with a pendulum goniometer. First, the positive angles of the tooth are sharpened through the tooth.

Then the process itself takes place:

Every second soldering is sharpened;
Then the angle changes to negative;
Remaining teeth are machined.
Back surface sharpening

This process provides for the possibility of changing the position of the disc so that the back plane of the soldering is in contact with the abrasive wheel.

If there is no sharpening machine, you can make everything with your own hands. How to sharpen a disc with your own hands:

Make a support for the saw that will hold the saw in place. This device must firmly hold the saw, otherwise the process will pose a danger to the performer;
Adapt the stand on which the disc itself will be located (if necessary, the angle of inclination can be changed to the supports);

Important! The abrasive saw and saw blade must be perpendicular to each other.

Fix the circular saw in its center so that it touches the circle in the desired position (to maintain the same rear and front sharpening angles).

It should be remembered that after sharpening, no chips, cracks, gaps and other defects should remain on the victorious teeth. If glare is not visible on the cutter, then the work is done correctly.

It should also be noted that the sharpened plane of the tooth and the material subsequently processed are dependent on each other. if the material of the workpiece is hard, then the soldering should not be too sharp.

The disc tool for sawing wood is always useful in construction. The circular saw is convenient in that it allows you to quickly cut the material with minimal effort and time. As for the quality of the cut, we can say that it is perfect, but only when the saw is in good working order and well sharpened. Otherwise, it is even dangerous to work with such a tool, so you should sharpen the circular saw.

Determining the need for a sharpening operation is not difficult: a blunt tool cuts the workpiece poorly, which immediately catches the eye. There are two options here: either send the disc to the workshop, which is not always beneficial in terms of time and money, or sharpen the circular saw with your own hands. This may seem daunting at first glance. But if you delve into the essence of the saw device in more detail, it will not be difficult to perform maintenance of the tool at home.

When to sharpen a circular saw

There are very definite signs by which one can judge the state of the instrument. Sharpening saws is necessary when the following is clearly manifested:

During operation, smoke appears, a specific smell of burnt wood, the casing covering the saw teeth begins to heat up quickly.

When moving the tool along the workpiece, significant efforts must be made to push the saw forward.

After cutting the material and visual inspection of the sawn edge, black carbon deposits or a lot of chips, fiber scoring, chipped areas are visible.

A close examination of the saw teeth with a magnifying glass shows that the cutting parts are not sharp, but rounded edges.

All this requires an immediate cessation of work, otherwise there is a great risk of damage to the material and wear of the circular saw to such a state when sharpening will no longer help it.

How to sharpen a victorious circular saw

In order to sharpen a saw blade with victorious solders, it is necessary to take into account some of the features of this product and select the tool as carefully as possible.

How can you sharpen a circular saw

Special wheels for sharpening saws, made on the basis of diamond abrasives.
A regular file for sharpening a saw, but you also need to have a vise to secure the saw and a block of wood to use as a guide.
Processing on professional equipment is the fastest and highest quality way of sharpening, but it requires large material costs for purchasing a tool.

Types of circular saw teeth setting

The complexity of the wiring process is due to the need to move the teeth to the side at the same distance. This can be achieved by using a factory set circulating saw setter. Each tooth should be started from the middle of its size. For wood materials of different density, the degree of setting the teeth should be different, but without going into details, we can say that they are bred wider for sawing soft species than for hard ones.

There are three main wiring methods:

Stripping type wiring. This method boils down to the fact that the tooth after two remains in its place without change, the rest are rejected in different directions. This saw preparation is good for working with solid wood.
A variant of the classic setting, when the saw teeth alternately move to the right and then to the left. This versatile method can be used for almost all types of saws.
The so-called wavy layout, a distinctive feature of which is the retraction of the teeth not at a strictly defined distance from the center, but at different distances with a deviation of 0.3-0.7 millimeters.

How to properly sharpen a circular saw blade

Saw blades must be sharpened regularly to avoid damage to the building material. We will tell you how to properly sharpen a saw blade with and without solders, what equipment and tools to use.

It is not difficult to determine the need for a sharpening operation: a blunt tool cuts the workpiece poorly, which immediately catches the eye. There are two options here: either send the disc to the workshop, which is not always profitable in terms of time and money, or sharpen the circular saw with your own hands. This may seem daunting at first glance. But if you delve into the essence of the saw device in more detail, it will not be difficult to perform tool maintenance at home.

General rules for sharpening a circular saw

The main edges are processed first of all, of which the front wears out more.
In extreme cases, with severe wear of the side faces, they are corrected.
At a time, remove no more than 0.15 millimeters of the saw metal thickness.
When finishing the edges with an electric tool, overheating of the metal is not allowed, in which case its properties deteriorate.
To ensure the maximum service life of the saw, when it can be sharpened up to 30 times, both edges should be sharpened: both the front and the back. removing the same amount of metal.
It is not allowed to sharpen circular saws with tools that are not intended for this, for example, an angle grinder and a disc for cutting metal.

After carrying out the basic sharpening operations, you can finalize the teeth with fine sandpaper. The quality control of the sharpening of the tool takes place in working conditions. If everything is in order, the cutting of the material will be clean, smooth, without visible defects and blackening.

Sharpening saws do it yourself at home

Attention! To sharpen circular saws with your own hands, it is desirable to have certain skills in sharpening the tool. If there are none, at least practice on emery, sharpening an ordinary knife.

When working with a disc, the main thing is not to spoil the cutting surface, and this can easily happen if the hand trembles, the feed angle is violated. In order to avoid negative consequences, you should study the sharpening methods, and then everything will turn out right. Distinguish between a manual method of restoring cutting elements of a circular saw and a method using sharpening equipment.

When to sharpen a circular saw

There are very definite signs by which one can judge the state of the instrument. Sharpening saws is necessary when the following is clearly manifested:

During operation, smoke appears, a specific smell of burnt wood, the casing covering the saw teeth begins to heat up quickly.
When moving the tool along the workpiece, significant efforts must be made to push the saw forward.
After cutting the material and visual inspection of the sawn edge, black carbon deposits or a lot of chips, fiber scoring, chipped areas are visible.
A close examination of the saw teeth with a magnifying glass shows that the cutting parts are not sharp, but rounded edges.

All this requires an immediate cessation of work, otherwise there is a great risk of damage to the material and wear of the circular saw to such a state when sharpening will no longer help it.

The main sharpening angles of circular saws

The front face, the one that first cuts into the workpiece in the direction of the saw movement, forms the main cutting edge with the rear face. The angle at which the leading edge meets the material is called the Y-angle (angle of attack). The angle between the back face and the front face is the taper angle. If you subtract the rake angle and the taper angle from 90 degrees, you get the clearance angle.

In practice, it is important to observe these angles when sharpening for each type of disc. It is according to the front angle that the saws are divided into types:

Longitudinally cutting, where the rake angle must not go beyond 15-25 degrees.
Transverse cutting, where it is permissible to sharpen the front face of the tooth at an angle of 5-10 degrees.
Universal discs, which are easy enough to cope with both longitudinal and transverse cuts, their rake angle should be maintained in the region of 15 degrees.

The angle of the bevel of the rear and front planes is also important: the sharper it is, the easier it is for the saw to enter the material, but wear occurs faster.

Follow the rules! When cutting hard wood, the saws must be sharpened so that the taper and bevel angles are as small as possible (within acceptable limits). This extends the life of the blade until the next sharpening.

Manual way

It is possible to independently sharpen the teeth by hand using a file, so that it is of high quality, if they do not have a bevel, that is, the surface of the front face is perpendicular to the surface of the blade. The process looks like this:

A block is harvested from dense wood with a section of somewhere 50×50 mm and a length of 100 mm. The sides of the bar should be located strictly perpendicular to each other.
Mark with a marker any tooth that will be reportable and the first to be processed.
The saw blade is clamped in a vice together with a bar so that the front edge of the workpiece is flush and in the same plane with the surface of the bar (in this case, the bar acts as a guide for the file).
A thin file (its thickness should allow it to fit freely into the cavity between adjacent teeth) is applied to the surface of the tooth to be treated and at the same time to the bar and methodical movements back and forth, sharpening is carried out.
This is how each tooth is gradually sharpened, monitoring the condition of the bar and, when working out its surface, slightly shifting the plane.

Sources:

http://ingener-pto.ru/2019/12/12/kak-natochit-cirkuljarnuju-pilu-s-pobeditovymi/
http://wikimetall.ru/metalloobrabotka/zatochka-diskovyih-pil.html