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Fault Analysis of Common Carbide Tool Wear Problem

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Update time : 2016-12-19 10:49:37
3.Coating of Tungsten Carbide Tool

Diamond coating tool with high hardness, wear resistance, low friction coefficient, etc., at this stage of, diamond coating is the best choice for graphite cutting tools, but also best embodies the use of graphite cutting tool superior performance; diamond coating of hard The advantages of alloy cutting tool is the combination of the hardness of natural diamond and the strength and fracture toughness of cemented carbide; but in the domestic diamond coating technology is still in its infancy, as well as the cost of investment is great, so the diamond coating in the near future There will not be much development, but we can on the basis of the average tool to optimize the angle of the tool, material selection and so on to improve the structure of ordinary coating, to some extent, which can be applied in graphite processing.

Diamond coated tool and the general coating tool geometry are essentially different, so in the design of diamond-coated cutting tools, due to the special nature of graphite processing, the geometric angle may be appropriate to enlarge the capacity slot is also larger, will not To reduce the abrasion resistance of its cutting edge; for ordinary tialn coating, although the coating than the uncoated tool wear is significantly improved, but compared to diamond coating, the processing of graphite when its geometry angle Should be appropriate to put a small, in order to increase its wear resistance.


For diamond coatings, many coating companies in the world are investing a lot of manpower and material resources to research and develop related coating technology, but so far, foreign mature and economical coating company is limited to Europe; Section of the excellent graphite cutting tools, the same use of the world's most advanced coating technology for surface treatment of the tool to ensure that the processing life at the same time, to ensure economic and practical tool.

4.Carbide Tool Edge Enhancement

Tool edge passivation technology is not yet a universal attention, but it is very important issue. Diamond grinding wheel carbide grinding blade edge, there are different levels of micro-gap (that is, small chipping and sawing mouth). Graphite high-speed cutting tool performance and stability of the proposed higher requirements, in particular, diamond-coated cutting tools in the coating before the passivation must be treated in order to ensure the coating firmness and service life. The goal of the tool passivation is to solve the above-mentioned problem of micro-gap of the cutting edge after grinding, so as to reduce or eliminate the front value, which is smooth and firm, strong and durable.