FINE MACHINING AND THERMO‐ELECTRIC WEAR Available to Purchase

WHILE machining, a cutting tool undergoes changes in geometrical shape and so‐called concentrated wear takes place in addition to normal wear on the clearance face. This type of wear is mainly due to thermo‐electric current generated in Machine‐Tool‐Workpiece‐Machine (MTWM) circuit, the whole system being on two different temperature gradients. This type of wear may be of little significance in the case of a rough machining operation but is of great importance in very fine machining operations since it effects surface roughness and dimensional accuracy of the job.