随着精密机械工业、电子工业等的机器的小型化和高精密化,以往的机械方法很困难或者甚至不可能加工的微米级的加工在急剧地增加着。作为电气加工方法之一的电火花加工,虽有许多缺点,但也有很多优点。现在,在穿通模和成型模的制造中发挥了作用,并已成为非常普及的加工方法。在精密加工领域具有许多能够充分发挥其效能的因素,如果加以利用,则超越机械加工水平的微小精密加工也是可能的。 With the miniaturization and high-precision of machines such as the precision machine industry and the electronics industry, the micron-level processing that is difficult or even impossible to be processed by the conventional mechanical methods is rapidly increasing. EDM, as one of the electrical processing methods, has many disadvantages, but also has many advantages. Now, it plays a role in the manufacture of punch-through dies and forming dies and has become a very popular processing method. In the field of precision machining, there are many factors that make the most of their performance, and if used, fine precision machining beyond the machining level is also possible.