Which
of the following statements is true?
Crater
wear is predominant in ceramic tools
Crater
wear is predominant in carbon tool steel
Crater
wear is predominant in tungsten carbide tools
Crater
wear is predominant in high speed steel tools
Crater
wear is predominant in tungsten carbide tools
Crater
wear is predominant in tungsten carbide tools because when chip moves over tungsten carbide tools of high temperature,
tungsten carbide disintegrate into carbon tungsten so that carbon diffuse into
chip and work piece.
Hence,
the correct option is (C).
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