要用很薄的金属箔机械加工成图案复杂、精密度高的细小另件,成本是昂贵的。其主要原因有二:一是设计与制造加工刀具本身就很费工本;二是在切削出的另件图案非常复杂时,要夹持一个薄箔满意地去除毛刺是很困难的。正是由于金属的机械加工存在着这些困难,特别是对于一次作业不成功就要报费的另件,采用化学刻蚀工艺尤为适用。其它如在金 The use of thin metal foil machined into a complicated pattern, high precision small parts, the cost is expensive. There are two main reasons: First, the design and manufacture of the tool itself is very labor-intensive tool; the other is the cutting of the other pieces of the pattern is very complex, it is difficult to grip a thin foil with satisfactory removal of burrs. It is precisely because of the metal machining of these difficulties, especially for a successful operation will have to pay another piece, the use of chemical etching process is particularly applicable. Others such as gold