Through machining the high Si-alumunium alloy, it thewed that diamond film coated tools have broad prospects in the filed of machining nonferrousmetals and nonmetals.

• 通过对高硅铝合金零件的加工．表明金刚石涂层刀具在有色金属和非金属材料的切削加工中具有良好的使用前景。