The Effects of Si Content on the Cutting Characteristics in the Turing Process of A1-Si Alloy, Using a Polycrystalline Diamond Tool

다결정 다이아몬드공구를 사용한 Al-Si합금의 선삭과정에서 절삭특성에 미치는 Si함량의 영향

With the recent development of light and high efficient automobiles and aircraft, demand of the A1-Si alloy is rapidly increasing. However, there is an inclination that as the content of silicon increases it becomes more difficult to machine. Accordingly, the present study intends to analyse and study the cutting resistance and surface roughness of A1-Si alloy with Si contents of 8%, 12%, 17%, and 20%. The A1-Si alloy specimens were turned by a poly- crystalline diamond tool under selected cutting conditions, and results are here described and discussed.