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August 12, 2017 18:08

Tools for sawing and cutting materials

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  • 1 saw Types
  • 2 How to use a saw
Tools for cutting and felling of photo materials What are the tools for sawing and cutting materials

Purpose Tool Saw

saws are designed for cutting metaland wood-based materials.We saw there the metal strip (ROM) with teeth.Step is the distance between the tops of two adjacent teeth, tooth height - the gap between the base and the apex of the tooth.The saw teeth are two lateral and one anterior cutting edges.We intended for the longitudinal sawing lumber saw teeth are formed in a triangle shape and have a straight grinding, by which is possible to produce sawing in one direction only.The front edge of such a blade cuts the fibers, and two lateral separate them from each other.

have designed for cross-cutting saw teeth are mainly in the form of an isosceles triangle, and have a two-way sharpening.In such a sharpening blade front separates fibers and their cut side edges.

saw Types

There are manual, electric saws and vykruzhnye.Electric and designed for transverse and for longitudinal

cutting of materials, in particular boards, bars.In addition, they can be used to perform certain kinds of carpentry work, such as sawing a certain angle.Ease of these saws is that the work requires significant time and physical resources with them.Widely used power saws such as EP-5km, EP-K6, K-5M, IE-5107.Saws EP-5km, EP-K6, K-5M need for sawing planed timber, boards, logs, boards.The cutting of the drinking - consisting of bonded joints between a tooth saw chain.In the process of working with these saws is necessary to strictly follow the safety rules:

not allowed to operate a chain saw in a wet room at a voltage above 36 V;

to move the saw, it should be placed in a bag;

saw at the end of the works must be removed in a designated place for it, such as in a closet.

Saw IE-5107 due to the high speed (49 s-1) is sawn wood products, having a thickness of 65 mm.It is also possible to use it as a stationary machine with the pre-installation on a workbench.To best protect the job with a saw, to check how well sharpened and divorced her teeth, how the disk is seated on the spindle, it for any cracks or other damage.Checking the condition of the gear is carried out rotating the disk.In the event that rotation of the disk difficult, liquefied lubricant, including 60 with the tool idling.

How to use a saw

After all faults are removed, the left hand should grab the front handle and the right - back, and set the cutting part of the blade on a pre-fixed to the bench material.Saw should be directed strictly on the planned line, without jerks, smoothly, since the tool drive when sudden and rapid movements may jam, triggering breakage of the motor.

Provided if you still drive jammed and he stopped, electric saw slightly retracted, facilitating the release of the disc and set the required speed and then continue sawing.If the drive does not gain the necessary speed, work with the saw stopped.After the cutting saw is turned off, wipe soaked in kerosene rag and clean storage.

Instruments
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Allocate hacksaw hand saws (hacksaw), transverse and luchkovye.First used for cutting small bars.

In conventional manual hacksaw has two (right and left Half Frame), finger clip.The handle is on the right side of Half Frame.Handsaw canvas placed in the gap of the rod and the tension screw, and then fix the pin.Then pull the canvas tool lamb.

Hacksaw Blades may have a length of 320 and 370 mm.Handsaw width - 15 mm, and thickness - 0.75 mm maximum.Height hacksaw teeth of 55-60 mm.Select the number of teeth in the web hacksaw be dictated by the specific metal.In particular, webs with teeth 16 suitable for use with a soft metal webs having 19 teeth, used for manufacturing of hard metal, and blade teeth 22 are designed to work with a superhard metal.

for cutting rod with a hacksaw, it should be placed in a vice and tighten so that the cutting line is located next to the vise jaws.When cutting parts having a large width, position hacksaw - horizontal.In the event that cut parts of flat or angular steel hacksaw position - inclined.

To achieve optimum results in the need to perform a minute 40-50 hacksaw movements.When the tool moves forward, carried the pressure, the pressure in the reverse direction is missing.The strength of the pressure due to the properties of the metal, which is working.In particular, the pressing force during the cutting of soft metals should be significantly smaller than when cutting hard metal articles.During operation with manual hacksaw, to the web tool is not cracked and not to injure your hands, you should avoid sudden movements, accompanied by considerable pressure.In addition to manual nozhovok also apply power.When working with a hacksaw blade periodically need to wet the instrument liquid emulsion to avoid overheating.

Cross saws for cross cutting and perform carpentry work.The teeth of the saw resemble isosceles triangles and have oblique sharpening.The angle at the apex of the tooth is typically 42-45 °.Saw blade may have a thickness of 1.1 and 1.4 mm.

luchkovye saws consist of made of hardwood onion, web having a length of 785-800 mm, and a string made of having a thickness of 3-4 mm woven hemp or flax cord.They may be longitudinal and transverse.In cross-bow-shaped saws fabric width of 22-25 mm, sharpening angle - 70-79 °, and the distance between the teeth is equal to 4.5-5 mm.At arched longitudinal saw blade has a width of 50-55 mm, thickness - 0,5-0,7 mm, the distance between the teeth is 5 mm, and the taper angle is 45-50 °.

Vykruzhnye saws used for cutting the material on the curve.Cloth these saws have a length of 500 mm, a width - 5-15 mm, the distance between the teeth is 5 mm, and the taper angle is 55-60 °.Sharpening the saw teeth straight.

In order to reduce friction forces which may lead to the fact that the web gets stuck in the cut tool, diluted teeth.Canvas for this should be placed in a vice and tighten.Then you need to take a universal wiring and fold the top of the teeth from the base of at least 2/3 of their height.Odd teeth deflect in one direction, and the odd - in another.

to perform work on the hardwood saw teeth are bred to 0.25-0.5 mm.If necessary, sawed materials of softwood saw teeth bred by 1 mm.To verify the performance of the divorce pattern used.

to the string does not stretch for a long time, at the end of work with a saw spin lightly let go.

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