Cryogenically Treated Tungsten Carbide Tools in Milling Operations

The tungsten carbide cutting tools are now in common use in industry and cryogenic treatment has been acknowledged by some as a means of extending the tool life of many cutting tool materials, but little is known about the mechanism behind it.When the differences in tool performance between cryogenically treated and untreated tungsten carbide tool inserts during the high-speed milling of medium carbon steel indicate that cryogenically treated tools exhibit better tool wear resistance than untreated ones. Also, it is evident that the application of coolant during cutting helps to reduce tool wear experienced by the cryogenically treated tools even further. In addition, cryogenically treated tools are found to perform best under a particular set of cutting conditions.

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