Cutting wheel - an indispensable material

For cutting various materials use a cutting wheel. There are a huge number of varieties of this tool. To increase the strength of abrasive cutting wheels in their production often use gaskets made of fiberglass and metal, which increase their durability. Their use allows cutting at a maximum speed of 100 m / s.

Cutting wheel
Cutting wheel is used for manual and semi-automatic cutting. This tool can be used to cut materials at an angle and for direct cutting. Cutting wheel is used in machines with a rotating or fixed workpiece. The thickness of the cutting wheels depends on their diameter. It is 0.5-4 mm. The minimum thickness is circles with a diameter of 200 mm. So that they have maximum strength, their thickness should not be less than 5-6 abrasive grains.

Billets of cast iron and steel are cut with electrocorundum circles, and non-ferrous metals and non-metallic materials are cut with circles made of silicon carbide. For cutting refractory materials, circles are used made with a bakelite bond by the method of building abrasive material onto a metal disk .

The increase in graininess increases the productivity of the circle, but reduces its durability and strength. To increase them, a metal bond is often used. The cutting wheel, hardened in this way, has an increased edge resistance, since the mass breaking of abrasive grains during their blunting is stopped. The degree of wear of the cutting wheel with a metal bond is proportional to the size of the grain. The quality of the surface to be cut depends on a decrease in grain size and an increase in concentration. For white electrocorundum circles, the optimal grain size is at a concentration of about 50% (by weight of the circle).

Diamond cutting wheel
Cutting wheel allows not only to increase labor productivity when working with various materials, but also reduces their consumption, eliminates deformation and the presence of burns. Using an angle grinder ("grinder") allows you to use it not only in industry, but also in everyday life. Cutting wheels for metal, the price of which directly depends on the material from which they are made, and their size, can provide high-quality, accurate and quick cutting of steel, cast iron, non-ferrous metal in almost any configuration. So what to choose a cutting wheel for this or that material? It all depends on its type and strength.

Cutting wheels for metal (price)
Stainless steel wheels are suitable for various alloys of stainless steel, steel, non-ferrous metals, solid castings, rolled products. For cutting with lateral load they are of little use. Reinforced cutting wheel can be used for work at an angle, as well as as a stripper. For cutting stones, stone cutting wheels are used, although they can also be used to work with concrete, brick, and tile. What is most suitable for cutting the most durable materials? The answer to this question is unequivocal - a diamond cutting wheel. It is used when working with concrete, natural and artificial stone, asbestos, hard alloy metals, ceramics, glass. Diamond cutting wheels have a special strength, therefore, they are used in a wide variety of fields. They are diverse in diameter and surface shape, can be with a segmental and solid contour. Diamond cutting wheels are used for wet and dry cutting.

Source: https://habr.com/ru/post/F34117/


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