在仪器仪表中需要许多冲压件,并且塑料注塑件的使用量也日益增多,为此就需要大量的模具。为了能低成本、高精度、快速地制造出模具,目前经常采用如下三种新的特种加工技术:电火花加工、电解加工和激光加工。一、电火花加工目前电火花加工的应用范围很广,它不但能加工一米以上的大型模具,而且能加工几微米的小孔和槽。由于它具有可大大缩短模具制造周期,并且加工技术不太复杂等优点,所以电火花加工机床的使用量在不断增多。从加工方式来分,电火花加工可分雕模加工和线切割加工。就雕模加工来讲,其加工机床的研制阶段已过,目前主要是要提高机床的精度、可靠性、操作及维修方便等性 Need a lot of stamping parts in the instrument, and plastic injection parts are also increasing the use of, for which a large number of molds are needed. In order to be able to manufacture dies with low cost, high precision and speed, three new special machining techniques are often used today: electric discharge machining, electrolytic machining and laser machining. First, EDM EDM is currently a wide range of applications, it not only can process more than one meter large mold, and can process a few microns of holes and troughs. Because it has can greatly shorten the mold manufacturing cycle, and the processing technology is not complicated, so the use of EDM machine is increasing. Divided from the processing methods, EDM can be divided into mold processing and wire cutting. In terms of carving process, the development stage of its processing machine has passed, the current main is to improve the accuracy of the machine, reliability, ease of operation and maintenance and other