can be calculated by the finite element method of stress magnitude different speeds to simulate the failure process and improve the design.
2013年7月31日星期三
Abrasive choice
Grinder grinding high tensile strength of the material, the selection of toughness abrasive. Grinding low hardness, elongation of the material, the selection of more
brittle abrasive. Grinding material with high hardness, the selection of higher hardness abrasive. Optional material to be processed easily abrasive chemical reaction
. The most commonly used abrasives are corundum sand Lun and corundum, followed by black and green silicon carbide, chromium corundum remaining common there,
monocrystalline corundum, microcrystalline corundum, zirconium corundum. Corundum grinding wheel: corundum hardness, toughness, tensile strength suitable for grinding
Higher metals such as carbon steel, alloy steel, malleable iron and hard bronze, etc. The abrasive grinding performance, adaptability, commonly used in the resection
margin larger kibble, cheap, widely available. Corundum grinding wheel: brown just slightly higher than the hardness of corundum
Jade, toughness lower than corundum, when grinding, abrasive shatter easily, so grinding heat a small, suitable for manufacturing grinding hardened steel, high carbon
steel, high speed steel and thin-walled parts with grinding wheel, corundum high cost ratio. Black silicon carbide grinding wheel: black silicon carbide sex
Crisp and sharp, higher hardness than corundum, suitable for grinding material of low mechanical strength, such as cast iron, brass, aluminum, and refractory
materials. Green silicon carbide grinding wheel: Green silicon carbide high hardness brittle than black, abrasive sharp, good thermal conductivity, suitable for
grinding hard alloy
Gold, optical glass, ceramics and other brittle materials. Chrome corundum grinding wheel: suitable for grinding tools, measuring tools, instruments, thread and other
surface processing, high quality requirements of the workpiece. Monocrystalline corundum grinding wheel: suitable for grinding stainless steel, high vanadium high
speed steel toughness, high hardness of the material
And deformation of the workpiece burn.
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