Comparison of the Performances of Coated Sintered Carbide and Coated Cermet Cutting Tools in End Milling of X210CR12 Cold Work Tool Steel with Different Hardnesses

Necip ÇAMUŞCU, Ersan ASLAN

Abstract


In recent years, the general trend in manufacturing industry is to machine work materials in hardened
state. In this way, it is intended to cut tooling, manpower and energy costs. This study explored the performance
and wear behaviour of different cutting tools in end milling of X210Cr12 cold-work tool steel hardened to 35 HRC
and 62 HRC. The cutting tools used in this study are TiCN coated sintered carbide by physical vapour deposition,
TiCN+TiAlN coated sintered carbide by chemical vapour deposition and TiAlN coated cermet by physical vapour
deposition. Tool performance evaluation was based on the surface finish of machined part and tool flank wear.
TiCN+TiAlN coated sintered carbide tool and TiAlN coated cermet tool exhibited better performance than TiCN
coated sintered carbide tool in terms of both flank wear and quality of machined surfaces.


Keywords


Sintered carbide; cermet; coatings; tool wear; surface roughness; hardened tool steel.

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