Abstract
In machining the hyper eutectic Al-Si alloy, the severe flank wear and the considerable deposit on the flank wear land of the tool are observed. This report deals with the deposit produced under several cutting conditions by EPMA to study the relation between the flank wear and the deposit.The following results were obtained.(1) The composition of the deposit on cutting edge side of the flank wear land was nearly the same as the work material, and silicon was principally adhered on the wear limit side.(2) The distribution of aluminum and silicon, which are the main elements of the deposit, was related to the width of the flank wear almost independently of cutting tool materials, cutting oils, cutting speeds, etc.(3) The primary silicon crystal in the deposit is crushed by abrasive action when it passes through the flank wear surface.(4) It seems that the influence of silicon deposit on the growth of the flank wear was nearly the same as that of aluminum deposit in dry cutting, but the former was less influencial than the latter in wet cutting.
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