Measurement of the thermal contact parameters at a workpiece – tool interface in a HSM process

摘要: In high speed machining process, the workpiece-tool thermal contact is not well known. We propose an experimental approach founded on original measurement principle that allows accurate estimation of parameters. These latter are three: resistance, generated heat flux density and partition coefficient this latter. paper we present these parameters considering global theoretical model its difficult a simpler alternative model. This consider separately both sub domains to estimate superficial conditions. That determining three allowing precise formulation boundary condition at interface. The purpose simplified uncorrelate estimates coefficient.