How to sharpen tape saws correctly. Taking methods

Settling a sharpener for tape saws

Ribbon saw. a closed.type cutting tool used on sawmill equipment.

The unconditional advantages of these elements are highly productivity and minimum amount of production waste. It is possible that when sawing ordinary boards, the last fact does not play a significant role, but if we are talking about processing wood of valuable species, the width of the cut and the quality of the cut directly affect economic benefits.

Proper sharpening of wood tape saw is a guarantee of the effectiveness of production and durability of the tool. Typically, such services are provided by specialized companies, but if you know the procedure and subtleties of the procedure, you can sharpen the blunt saw yourself.

Sharpening and wiring saw

The main cutting element of any manual saw. a number of teeth cut on the canvas and representing cutters in the form of wedges. The wood, in the manufacture of all kinds of products from it, is sawn along, across and at an angle θ to its fibers, in this regard, transverse, longitudinal sawing and sawing at an angle to its fibers are distinguished and, in each case, the appropriate type of saw is used, which differs from other forms teeth.

a. transverse sawing; b. longitudinal sawing; one. wood; 2. drank; 3. Flaim for a trimmer of marking for sawing; Θ. The angle of inclination of the marking to the fibers of wood during mixed sawing.

During transverse sawing, transverse saws are used, the cutting edges of the teeth of which, when moving in wood, is interrupted by its fibers as a knife and form a cut. The longitudinal sawing differs from the transverse in that the direction of movement of the saw parallel to wood fibers. The front edges of the teeth of the longitudinal drank string the wood, like knives in the shirts, and, deepening, form a cut. When sawing wood at an angle θ to its fibers, universal (mixed) saws with teeth, which are an intermediate shape of the teeth of transverse and longitudinal saws are used.

Sharpening of the saw

In the process of work, the teeth of the saw are blunt, the cutting front and lateral edges are rounded, the pile of the saw becomes heavy and it is necessary to crush it greatly. Experienced masters in the brilliance of the cutting edges and tops of the teeth and the sound of the saw easily determine its acuteness. To restore the cutting ability of the teeth, they are pulled by files or files, giving them sharpness and preserving their parameters: angles, steps and heights.

Sharpening the teeth drank. In its kind, art, requiring fidelity of hands, good eye, attention. It is not difficult to learn this matter, it is necessary to have a desire and clearly adhere to the following rules:

  • The saw canvas must be rigidly fixed in a special device made of wood, which is also steadily installed on a well.lit desktop. Sharpening of teeth drank on stools or knees does not give a satisfactory result.
  • You should use a personal file, followed by stripping the sharpened faces of the teeth with velvet (with a small notch) or a file. It is desirable that the file is new, sharp and with a mounted handle. If at the right time it was not the same, then you can use a used, but necessarily cleaned with a steel brush and grated with wood coal, so that the file does not clog and does not stupor. When sharpening the tooth, the file should cling to its metal and remove its layer depending on the strength of pressure. And if it slides down the tooth without removing the metal, then the teeth of the saw are rolled or the file is Istrut. In this case, it is necessary to repeat the sharpening with a new file. If in this case it slides along the tooth, then it remains to take another saw.
  • The handle of the file is clamped with the right hand, and its end holds the end with his left hand and the file is directed to the teeth of the saw. About the work of the file, depending on the type of saw, is described below.
  • The pressure of the file on the teeth should be smooth and uniform and only one way from itself. When the file is returned to the starting position, he should not touch the teeth.
  • We must try to grind the metal from the faces of the teeth of the minimum of the same thickness, the lead of the file is the same number of times with the same pressure, which allows you to maintain the values ​​of the angles, the step and height of the teeth after sharpening.
  • On the faces of the tooth from the side of the file of the file, burrs are formed, which reduce the sharpness of the tooth, and if you do not remove it, then during the operation of the saw they are painted, and the teeth are significantly blunt. To remove the burrs, the edges of the teeth are wetted with a file with a velvet notch and the burrs from the side faces with a wet donkey are removed.
  • After sharpening the teeth, it is necessary to check their sharpness. Look at the tip of the needles and the edge of the razor blade: they, sharpened, do not shine in the light. And if they lick them, then rounded surfaces appear on the tip of the needles and on the edge of the blade, which reflecting the light, sparkle well. On this principle, a check of the quality of sharpening of teeth saws was built. For this, the saw is placed in front of the eyes and examine its teeth along the canvas. If their cutting edges and peaks do not shine, then the teeth of the saw are saturatedly stumbled, and if some of the teeth with brilliance (often it happens), then they need to be undermined by a file with a velvet notch, remove the burrs and again check the reflection of the light with their edges and peaks.

Cross saws. The teeth of the transverse saws are pulled, using a trihedral file with a fine notch with an angle at a top of 60 °.

To sharpen the teeth, the saw is clamped in a special device, which allows you to install its canvas at an angle of 45-50 ° to the plane of the desktop. The file is carried out parallel to the desktop at an angle of 60-75 ° to the saw canvas and thus, in the first tooth, the left line is A1A2V2V2.

Sharpening of the transverse saw: 1. saw canvas; 2. sharpened tooth; 4. sharpening device; 5. drain drain; 6, 8. Directions of the file 7 in relation to the desktop and the drained teeth of the saw; nine. Fishing line for trimmering teeth during their divorce

Sharpen the teeth of the saw in several tricks. First, they pass the files along the left edges of the odd teeth located in the far row, setting up hands on the same movement. Then they pass a file on the right faces of the same odd teeth, completing the sharpening of the main cutting edges with very sharp peaks. After the sharpening of the odd teeth is completed, the saw canvas in the solid device turn over and thus sharpen even teeth, which ended up in the far row. When sharpening the teeth of transverse saws, it is necessary to carefully monitor that the sharp main cutting edges with the dual-sided angle φ = 60-75 °, a short cutting edge and a sharp peak are obtained in each tooth.

Sharpening of a strip saw

Ribbon saws, which are canvases with a gear edge, connected by ends to a continuous tape, have their own, only inherent advantages to them. The width draped, left by them, drank less width from disk saws. When sawing ordinary wood, this feature may not be too important, however, when cutting valuable wood and cutting expensive metal, this is significantly.

Sharpening of a strip saw

Small width of the cut causes relatively low energy costs for cutting the material. And, finally, the ribbon saw can cut the workpiece of almost any thickness, while the geometry of the disc saw imposes restrictions on the thickness of the material cut by it. However, in order to use all these advantages, tape saws must be able to correctly prepare for work. The main preparatory operations include sharpening and wiring tape saws.

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The material drank

Ribbon saws are made from different materials. depending on what material they are intended for.

Daws for wood are made of instrumental alloy steel having a hardness of 40-45 HRC. Domestic manufacturers use 9XF, B2F steel (for ribbon saw for metal) and others., foreign. their steel (C75, UDDEHOLM UHB 15, etc.). When hardening the teeth of such saws of high frequency currents, they can acquire hardness up to 64 HRC and above.

Tempered teeth of a strip saw

Saws for cutting carbon steels and non.ferrous metals of small thickness are also made of instrumental steel with mandatory hardening teeth with high frequency currents. However, more often for cutting metal, bimetallic saws are used, in which the canvas is made of spring steel, and the strip on which teeth are cut, from high.speed steel with high m tungsten and cobalt. After quenching, it acquires hardness up to 65-69 HRC. High.speed steel is welded to the base of the saw by an electronic beam.

Manufacture of bimetallic tape saw

Bimetallic saws are able to cut thick metal from instrumental, stainless, heat.resistant and other steels, titanium alloys and other metals.

Bimetallic strip saw

How to Sharpen a Wooden Spokeshave | Paul Sellers

Teeth with greater wear resistance are obtained by giving them with stellite (with chromium and cobalt with the additions of tungsten and/or molybdenum) or soldering plates from hard alloys to them. Such saws surpass in their cutting abilities bimetallic. They are used for cutting fiberglass, automings, cables, reinforced plastics, heat.resistant alloys, graphite, aerated concrete, bricks and other difficult to process materials.

Ribbon saw with carbide

Geometry of tape saws

Depending on the type and properties of the sawed material, the strip saws have different geometry of the teeth.

sharpen, tape, saws, correctly, methods

For sawing wood, three main types of teeth are used: for carpentry, for dividing saws, for sawing beams and logs.

Ribbon saw profile

sharpen, tape, saws, correctly, methods

Characteristics of tape saws

The specific values ​​of the angle of sharpening of the strip saws are determined by manufacturers based on many factors. In general, such a dependence can be highlighted. The harder the wood, the smaller the front angle (γ).

Different shape of the tooth is also used for metal saws, depending on which metal they are designed. Daws with a constant step distinguish between two main forms.

Standard, designed for cutting thin.walled metal with a short chip with front angle (γ) equal to 0 °.

A tooth with a positive front angle (γ) used in saws for cutting thick.walled metal with long chips.

For thin.walled material, saws with a relatively small step are used (the number of teeth on an inch. from 4 to 18). Saws for cutting thick-walled material do not need a large number of teeth, their number is 1.25-6 teeth per inch.

Step of teeth

To eliminate the effect of resonance, leading to the vibrations of the canvas, some saws are taken with a variable step, in which the distance between the teeth changes within the framework of a separate group. The size of the step is indicated by the largest and smallest values.

Divorce of strip saws

A divorce is the operation of bending the saws of the saw in one side in order to reduce the friction of the saw canvas on the saw wall and prevent its clamping. In order for the canvas to move freely in the propyle, the width of the latter should be more than the thickness of the canvas by 30-60%.

There are several types of wiring, the names of which may differ in different manufacturers. The main species are.

Standard, in which the teeth alternately bend in opposite directions.

Standard wiring

The cleaning one after the bending of two teeth, the third does not get divorced, remaining in place.

Cleaning wiring

It is mainly used for saws designed for cutting especially hard alloys and materials. Every third tooth has a trapezoidal shape, it remains in the center of the saw and serves to send the entire saw tape.

Recommendations of specialists

The result of incorrect work. the dicks of the instrument is burned.

  • The shape of the cloves is the characteristic developed and verified by specialists. By changing it, you cannot effectively process the blanks. Based on this, the sharpening must be done so that the shape of the teeth and the profile of the canvas remain the original, factory.
  • Subject to all the rules of work and maintenance, the strip tool will be faithful and the truth to you serve until its width is up to 65 percent of the original value.

note! There is a widespread opinion among amateur masters that there are no special needs to remove the burrs arising during the processing. It is fundamentally wrong, so microscopic cracks can occur in the canvas.

After completion of the work, the strip device must be immediately cleaned of wood juice, sawdust, tar. Before starting maintenance, the tool should be carefully inspected, otherwise you will clog the circle. This will lead to a significant decrease in the efficiency of sharpening.

Common errors

  • Simple sinuses of saws of saws. This happens due to the application of excessive efforts when working with the sharpening disk. This defect leads to the fact that the teeth are very quickly blurred.
  • Neoptimal angle of teeth slope and incorrect, angular shape of the sinuses.

Such a sharpening result is possible due to several errors:

  • demolition of an eccentric toe machine;
  • incorrectly exhibited angle of slope of the head of the machine gun.
  • illiterate chosen profile of the sharpening disk.

Dilute and sharpen

Wiring and sharpening of strip saws are not carried out separately from each other. They should be made sequentially, first dilute, and then sharpen the canvas. They bred a canvas in order to reduce its friction on the processed material and to prevent the tape. Wiring is done different, depending on the tasks of the machine. The most commonly occurs alternately when the teeth bend the canvas from the plane in different directions in turn. Less common is the wiring to clean the material. Its difference from the previous one is that out of 3 teeth one does not bent, t.e. The first is bent to the right, the second to the left, the third remains even.

The most complex and rare is wavy wiring in which each tooth is bent on an “individual” angle. The wiring can be carried out with conventional pliers, while the angles of teeth deviations should be thoroughly maintained and tightly fixed the canvas. The main nuance is that in the process of wiring, only 2/3 or ½ tooth length is rejected, and not the entire tooth (from the base).

To sharpen the strip saw, you should purchase sharpen circles and a sharpener. The material of the circles is determined based on the saw material. Particular attention should be paid to the form of a sharp.circle circle, which depends on the cutting surface of the saw. The shape of the grinding circle determines the angles of sharpening. At the beginning of work, a circle is installed in a sharpener and fix it, then the canvas tape is inserted into a special clamp and also fix it. The sharpening process occurs as follows: the rotating sharpening is lowered to the canvas, sharpen one tooth, then raise and move to the next. Когда заточены все зубцы в пределах перемещения точила, станок отключают, разжимают и смещают полотно, чтобы точились следующие зубцы. In this case, the initial teeth are marked with the marker.

Whole and at once

If you carefully read how the work is going in the first way, you should have understood how really it is really difficult to sharpen the saw high.quality.

There are constant conversations that it is impossible to quickly and well saw with narrow tape saws. The saws are torn quickly. For proper preparation, it is almost impossible to find a sharpener. Pilomaterial at the output is obtained with a large wave, which negates all the advantages of thin cut.

So, in order to radically solve all these problems at once, Wood-Mizer was offered a way to not consistent tagging of each tooth of the strip saw, and at once the entire tooth profile only one entry into it of a special specialized disk.

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Razor Sharp Clearing Saw | Many Struggle With This

In this way, three main problems are solved at once:

  • No need to look for a highly qualified sharpener. on such a machine, almost any person can sharpen a saw on one pass with factory quality. He only needs to bring the disc to the saw. The rest of the machine will do it itself, which makes it possible to maximize the influence of the human factor on the quality of the result.If the profile of the saw tooth does not correspond to the profile of the sharpening disk, then at first, in two or four passes, teeth profiles are formed, deepening the disk by one pass by no more than 0.1 mm. Further sharpening is in the usual order.
  • Ribbon saws operate two to three times longer, since the saw along the entire length is obtained with a completely protected and exactly the same profile of each tooth without bruises, micronerings and scs, that is, without voltage points.
  • Pylorama can work with its maximum performance, since the saw along the entire length is obtained with the same front and rear angles on each tooth. But, despite all the listed advantages, this method of sharpening was practically not used on sawmills for a long time.

This happened for the following main reasons:

  • Very high price. Therefore, such a machine was bought mainly by service centers.
  • Not very convenient technical solutions of the sharpening process itself. A warm room, special oil was required, only with which a weak oil pump could work. This oil began to burn with intensive sharpening, so a mandatory hood was required and much more.
  • But the biggest restriction was the inability to drag the profiles of tape saws of others, except Wood-Mizer, manufacturers, as Wood-Mizer made relevant discs only for its saws. There were no other manufacturers.

Wood-Mizer Study machine

One of the first, eight years ago, our service center also purchased such a machine. At that time, it was still the best machine for sharpening tape saws. Unfortunately, the company over the past years has not changed anything in its design.

This machine works with us now. Here is just the “native” he left only the bed.

In the last two to three years alone, machines of other manufacturers began to appear for sharpening tape saws in this way. In terms of price and resulting result, they are very different from each other. To understand these differences, I will tell you more about each group.

Cheap group Some manufacturers of classic sharpening machines simply change the phases of movement on a fist. Now the disk is already moving along the tooth, but only up and down. This gave them the opportunity when installing a profile disk to sharpen the entire tooth at once. But none of them understood that to sharpen a saw with a specialized disk, it was necessary not only to change the phases of movement of the fist, but also to make the whole machine in a different class of accuracy. Many of those who contacted us for help have already come across this. Therefore, I want to immediately warn about the meaninglessness of the acquisition of such machines. The worst thing for the disk is the backlash of the machine. If they are (and they are on all ordinary sharpening and, accordingly, remain on those sharpening machines that simply, with the help of another fist, try to convert to work with the Elbor discs), then the disk begins to be unpredictably beaten on the front line, then on the posterior, then on the posterior and accordingly and break the profiles of the teeth of the saw. Then the sharp ends of the teeth begin to cut the disk, several times reducing its service life.

Backlash can ruin the disk after 500m. So it turns out from those who have already purchased such machines. At first, sharpening goes well, but very quickly, an expensive embrace disk becomes inoperative (it is simply cut to the base of the front or risk cutting out). You need to buy a new disk, which is already becoming economically unprofitable.

In Fig. 3 shows the phases of the profile disk. He must enter into the profile of the tooth all at once and sharpen the whole plane. The thickness of the applied Elbor layer is only 0.25mm. But this layer is enough for a long normal operation. If the front of the disk at the entrance to the profile crashes into the top of the tooth. then the sharp cutting edges of the teeth are relatively quickly pierced in risk coating or generally ripped off in this place completely to the base, making the disk unemployed. In this case, the breakdown of the tooth profile also occurs.

Dear group These are the manufacturers who simply copied the Woodser machine. At the same time, they got the machine at the price of the original, and the quality of manufacture is the same or even worse. With this option, it seems to me, it is better to purchase a proven original. However, this is already deciding.

Back machine “Vestron-a”)

The machine of the company “Vestron-A” I highlight it because the machine was originally done not for sale. Just the Woodizer machine for the above reasons did not suit us. We made a machine for sharpening in our service center, in which we removed everything that interfered with quality work on the Woodizer machine, and added everything that, from our point of view, was not enough there. That is, we made a machine for ourselves, convenient and reliable to the maximum. And only when our clients began to ask to make a machine for them, we decided to put it on sale.

Types of stripping ribbon saws

Like any other tool, the strip saw is worn after each cutting cycle. This is a natural and inevitable process. That is why each drain type saw needs regular and qualified maintenance. wiring and sharpening. Such maintenance allows not only to maintain a cutting canvas in working condition, but also to significantly increase its life.

Increase the service life of the cutting canvas and significantly improve its functionality allows the correct wiring. The meaning of this operation is as follows: the cutting teeth of the saw bend in different directions, which allows reducing the friction force during cutting, as well as minimize the risk of closing the canvas with a processed part. Warring the strip saw can be performed according to three schemes, the choice of which depends on the type of material processed.

  • With the so.called cleaning type of wiring, the teeth are bent in such a way that every third of them remains untouched. Such a scheme is used if the cutting canvas is used for the cut of particularly solid metals and alloys.
  • The classic type of wiring involves an alternate extension of each cutting tooth.
  • With wavy wiring, each cutting tooth is bent to a certain angle. It is clear that this type of wiring is the most difficult of all others.

To bend the teeth of the strip saw, special equipment is used to perform such a technological operation quickly and as accurately as possible. According to generally accepted standards, the maximum wiring of the teeth should not exceed 0.7 mm, but usually its value is in the range of 0.3–0.6 mm. It is important not only to choose the type of wiring, focusing on the characteristics of the material that has to be sawed, but also to perform it correctly, bending the teeth only by 1/3 or 2/3 of their heights.

After wiring, you can send a cutting canvas to a machine for sharpening tape saws. As statistics show, tape saws most often lose their functionality due to the fact that their sharpening was done incorrectly or untimely. The indicator that the strip saw needs wiring and further sharpening on the machine, is increased roughness of the surface of the saw. The need for such a procedure can also be determined by the appearance of cutting teeth.

The main elements of any sharpening machines are circles, the choice of which, first of all, depends on the hardness of the material used for the manufacture of cutting teeth. In order to sharpen hard materials, it is necessary to use the corresponding circles. So, for sharpening with bimetal.type paintings, sharpeners consisting of borazon or diamond elements are chosen, and to put the saw made of instrumental steels in order, corundum circles are quite suitable.

Tools for sharpening the ribbon.type saws are chosen both in composition and in constructive performance. For different in design and linema sizes, circles of the following types can be used in machines:

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A set of Wood-Mizer devices for sharpening and wiring tape saws

According to the instructions, when sharpening a strip saw on the machine, you should monitor compliance with the following requirements.

  • There should not be burrs on the surface of the tooth when sharpening it.
  • The torching circle should remove the same layer of metal throughout the tooth profile.
  • In order to avoid overheating of the teeth, when they turn them on the machine, a special liquid should be used for cooling.
  • When sharpening, the profile and height of the processed teeth should not change.
  • Must be monitored by the pressure that the circle of the sharpening machine for the tooth is provided. If you neglect this requirement, the pressure can be too significant, which can lead to annealing of teeth.

To facilitate the process of sharpening, the canvas of the strip saw is pre.twisted and in this state is suspended for 10-12 hours.

Sharpening of a tape type with his own hands has some features. In such cases, as a rule, the back surface of the teeth is sharpened, although if you use the manufacturer’s instructions or watch a thematic video, you can sharpen their front surface.

Service of saw

It is not enough for the maintenance of canvases to sharpen the teeth, it is also necessary to dilute them. These two procedures are performed in order of continuity: they start with wiring, and completed by pulling them. It is required to strictly observe such a chronology of work. Breeding is carried out in order to reduce the friction of the saw in the process of cutting a particular material (wood, metal, plastic and other). There are several methods of breeding that depend on which elements you need to obtain later the processing and strength of the starting workpiece.

Sharpening secrets

So that in the process of sharpening on the canvas, cracks from the back are not formed, it must be fixed so as to exclude friction about the machine (that there is a gap between the canvas and surface of the machine).

You can’t press a lot on the circle, the neglect of this will allow the sharpener to remove a large layer of metal with the cutting edge and will lead to the rapid wear and unsuitability of the saw to work.

Too much deviation of the teeth during wiring leads to rapid loss of saws and can cause a breakdown of the teeth.

Small width of the cut causes relatively low energy costs for cutting the material. And, finally, the ribbon saw can cut the workpiece of almost any thickness, while the geometry of the disc saw imposes restrictions on the thickness of the material cut by it. However, in order to use all these advantages, tape saws must be able to correctly prepare for work. The main preparatory operations include sharpening and wiring tape saws.

The material drank

Daws for wood are made of instrumental alloy steel having a hardness of 40-45 HRC. Domestic manufacturers use 9XF, B2F steel (for ribbon saw for metal) and others., foreign. their own steel (C75, UDDEHOLM UHB 15, etc.). When hardening the teeth of such saws of high frequency currents, they can acquire hardness up to 64 HRC and above.

Saws for cutting carbon steels and non.ferrous metals of small thickness are also made of instrumental steel with mandatory hardening teeth with high frequency currents. However, more often for cutting metal, bimetallic saws are used, in which the canvas is made of spring steel, and the strip on which teeth are cut, from high.speed steel with high m tungsten and cobalt. After quenching, it acquires hardness up to 65-69 HRC. High.speed steel is welded to the base of the saw by an electronic beam.

Bimetallic saws are able to cut thick metal from instrumental, stainless, heat.resistant and other steels, titanium alloys and other metals.

Teeth with greater wear resistance are obtained by giving them with stellite (with chromium and cobalt with the additions of tungsten and/or molybdenum) or soldering plates from hard alloys to them. Such saws surpass in their cutting abilities bimetallic. They are used for cutting fiberglass, automings, cables, reinforced plastics, heat.resistant alloys, graphite, aerated concrete, bricks and other difficult to process materials.

Geometry of tape saws

For sawing wood, three main types of teeth are used: for carpentry, for dividing saws, for sawing beams and logs.

The specific values ​​of the angle of sharpening of the strip saws are determined by manufacturers based on many factors. In general, such a dependence can be distinguished. the harder the wood, the smaller the front angle (γ).

Different shape of the tooth is also used for metal saws, depending on which metal they are designed. Daws with a constant step distinguish between two main forms.

Standard, designed for cutting thin.walled metal with a short chip with front angle (γ) equal to 0 °.

A tooth with a positive front angle (γ) used in saws for cutting thick.walled metal with long chips.

For thin-walled material, saws with a relatively small step are used (the number of teeth on an inch-from 4 to 18). Saws for cutting thick-walled material do not need a large number of teeth, their number is 1.25-6 teeth per inch.

To eliminate the effect of resonance, leading to the vibrations of the canvas, some saws are taken with a variable step, in which the distance between the teeth changes within the framework of a separate group. The size of the step is indicated by the largest and smallest values.

Divorce of strip saws

There are several types of wiring, the names of which may differ in different manufacturers. The main species are.

Standard, in which the teeth alternately bend in opposite directions.

The cleaning one after the bending of two teeth, the third does not get divorced, remaining in place.

It is mainly used for saws designed for cutting especially hard alloys and materials. Every third tooth has a trapezoidal shape, it remains in the center of the saw and serves to send the entire saw tape.

Wavy, the most complex, in which the teeth are bent with the variable value of the bending, forming a peculiar wave.

During the divorce, not the entire tooth is bent, but only part of it at a distance of 1/3-2/3 from the top. Pil manufacturers have their own recommendations on their saw divorce parameters, however, in general, the values ​​recommended by them are filed in the range of 0.3-0.7 mm.

The general rule is that the divorce of tape saws for cutting soft wood should be larger than that of saws for processing solid. But there should never be such a bend of teeth so that the unrequited wedge remains in the center.

During the divorce, its identity should be ensured for all teeth. The deviation should not exceed 0.1 mm. With uneven wiring, the saw may go towards a stronger divorce.

Divorce devices

Simple lever divorce device (model RU-05) is shown in the figure below.

The saw is installed in the groove of the device tooth opposite the probe of the arrow indicator, which serves to measure the divorce. Using a mobile scale, the indicator arrow is installed on zero.

When pressed on a divorce lever, the bolt (1) presses on the tooth, bending it and thereby carrying out its wiring. The indicator arrow shows the size of the wiring. The entrance or twisting of the bolt is set its required value, after which the bolt is stopped by a counter.hawk (2).

Divorce is carried out through one tooth, after which the canvas is deployed, and the operation is repeated in relation to the rest of the teeth.

sharpen, tape, saws, correctly, methods

There are simpler devices for a divorce designed to divorce saws. Although they cannot provide high accuracy and require certain physical efforts, in extreme cases. You can use them.

Sharpening of tape saw

Different circles are used to sharpen tape saws depending on the hardness of the teeth. electric contrast, diamond or elborus (they are also borazone). Bake.based corundum circles are used to sharpen instrumental steel saw. Sharpening of bimetallic chipped saws or other saws with teeth of high hardness requires an elboron or diamond circle.

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