According to grain size, CVD diamond coating can be divided into micron diamond coating and nano diamond coating. Micron diamond coating grain size is usually between 500 nm and a few microns, micr...
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The quenching of steel is the heat treatment process of heating steel to the critical temperature Ac3(hypoeutectoid steel) or Ac1(hypereutectoid steel) above temperature, holding for a period of time,...
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The choice of tool material has great influence on tool life, processing efficiency, processing quality and processing cost. Cutting tools to withstand high pressure, high temperature, friction, impac...
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Many customers in the use of shearer, digger and other machinery found that the mechanical picks are liable to malfunction, through the analysis of the investigation we get the following reasons. 1...
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When the workpiece material structure, hardness, allowance is not uniform, the tip is the most vulnerable cutting part of the tool. If the tip first contact with the workpiece, most of the impact forc...
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There are a large number of carbides in the material of chilled cast iron rolls, which are composed of pearlite, cementite and ledeburite. The hardness of the roll itself can reach 65HRC or more, and ...
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Drilling processing is a kind of hole processing, mainly in the drilling press, lathe processing. The machining process has some disadvantages: no cooling environment, drilling processing generated mo...
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The principle of reasonable selection of cutting dosage is that rough machining, generally to improve productivity, but also should consider the economy and processing costs; In semi-finishing and fin...
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