To cut various materials, a cutting wheel is used. There are many varieties of this tool. To increase the strength of abrasive cutting wheels, fiberglass and metal spacers are often used in their production, which increase their durability. Their use allows cutting at a maximum speed of 100 m/s.
The cutting wheel is used for manual and semi-automatic cutting. This tool can be used for cutting materials at an angle and for straight cutting. The cutting wheel is used in machines with a rotating or stationary workpiece. The thickness of cutting wheels depends on their diameter. It is 0.5-4 mm. Circles with a diameter of 200 mm have a minimum thickness. In order for them to have maximum strength, their thickness should not be less than 5-6 abrasive grains.
Cast iron and steel blanks are cut with electrocorundum wheels, and non-ferrous metals and non-metallic materials are cut with silicon carbide wheels. For cutting refractory materials, circles made withbakelite bond by building on a metal disk of abrasive material.
Increasing the grit increases the performance of the wheel, 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 out of abrasive grains during their blunting stops. The degree of wear of a cutting wheel with a metal bond is proportional to the grain size. The quality of the cut surface depends on the reduction of graininess and the increase of concentration. For circles made of white electrocorundum, the grain size is optimal at a concentration of about 50% (by weight of the circle).
The cutting wheel allows not only to increase productivity when working with various materials, but also reduces their consumption, eliminates deformation and the presence of burns. The use of 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, allow for high-quality, accurate and fast cutting of steel, cast iron, non-ferrous metal of almost any configuration. So what kind of cutting wheel to choose for a particular material? It all depends on its type and strength.
Stainless metal wheels are suitable for various stainless steel alloys, steel, non-ferrous metals, solid castings, rolled products. For cutting withside load they are of little use. Reinforced cutting wheel can be used for working at an angle, as well as a cleaning wheel. For cutting stones, stone cutting wheels are used, although they can also be used to work with concrete, brick, and tiles. What is best for cutting the toughest 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.
