大型工件表面电火花刻字技术

叙述了大型工件表面刻字的有关技术和方法，从经济和技术的角度分析了用电火花加工方法进行大型工件表面刻字的原因。根据电火花加工原理和大型工件表面刻字特点提出了大型工件表面电火花刻字的技术方案。该技术方案以小型电火花机床的主轴头和电源控制柜为基础，重点研究了总体结构、电极与工件之间的三坐标移动、电极精确定位、工作液循环系统等关键技术。简要介绍了为某大型钢铁企业研制的大型轧辊电火花刻字专用机床。现场应用情况表明，该技术方案经济实用，该专用机床稳定可靠。

EDM Lettering Technology of Large-scale Workpiece' s Surface

The actuality of lettering technology on workpiece's surface is introduced from domestic and abroad ,and the principle of using EDM to carve characters on large-scale workpiece's surface are analysed at economical and technologic point of view. The technologic scheme is put forward according to the principle of EDM and the character of EDM lettering on large scale workpiece's surface,which is based on headstock and electrical source control tank of minitype EDM tool. The key technologies, the whole makeup,the motion between electrode and workpiece at three coordinates, precise orientation of electrode and cycle system of work liquid are emphatically studied. Finally,an special EDM lettering tool of lager scale roller for a large scale iron & steel enterprise is briefly described. The application indicates that the technologic scheme is economical and useful,and the EDM lettering tool is stable and reliable.