Experimental verification of a diffusion tool wear model using a 42CrMo4 steel with an uncoated cemented tungsten carbide at various cutting speeds

Tool failure is an important factor which affects productivity and manufacturing efficiency. Investigations show that the tool rake face temperature can attain large values especially in high speed machining (HSM). As a consequence of these high temperatures, diffusion is considered in this paper as being the dominant damage mechanism for tools at high cutting speeds. The purpose of the present paper is to verify a new diffusion wear model by comparison with experimental data. A good agreement is found with respect to measurements of crater wear and tool life.