TopWedm是Top of wire cut Electrical Discharge Machining的简称，是电火花线切割加工英文简写，电火花线切割加工又称线切割。其基本工作原理是利用连续移动的细金属丝（称为电极丝）作电极，对工件进行脉冲火花放电蚀除金属、切割成型。它主要用于加工各种形状复杂和精密细小的工件，例如冲裁模的凸模、凹模、凸凹模、固定板、卸料板等，成形刀具、样板、电火花成型加工用的金属电极，各种微细孔槽、窄缝、任意曲线等，具有加工余量小、加工精度高、生产周期短、制造成本低等突出优点，已在生产中获得广泛的应用，目前国内外的电火花线切割机床已占电加工机床总数的60％以上，其中包括东莞琛阳数控，HONGKONG TOPWEDM MACHINE TOOL CO.,LIMITED等。
电火花线切割分为慢走丝线切割（英文缩写是慢走丝是 WEDM-LS）,快走丝线切割（英文缩写是慢走丝是WEDM-HS），另外还有中国特有的中走丝（CNC Medium Speed Wire Cut EDM）
TopWedm is abbreviated English, TopWedm also known as the cut line. The basic working principle for the use of mobile thin metal wire (known as the electrode wire) to make electrodes, to carry out work on the pulse spark discharge in addition to metal corrosion, cut into type. It is mainly used for processing a variety of complex shapes and precision small parts, such as the punch Die, Die, Die Bump, fixed panels, boards, such as discharge, forming tool, a model, the EDM processing of the metal electrode , A variety of micro-hole slot, narrow, arbitrary curves, and so on, with a small allowance, high-precision machining, short production cycle, highlighting the advantages of low manufacturing costs, have access to the production of a wide range of applications, the spark at home and abroad WEDM EDM accounts for more than 60% of the total. eg:CYAN CNC EDM,HONGKONG TOPWEDM MACHINE.
TopWedm walking into thread cutting, quick cutting thread, as well as take in the unique Chinese silk