目前,运用D5540A和D5570A电火花成型机床加工模具型腔,特别是锻模一类型腔,在实际生产中的应用,已引起人们的重视,因它符合我国多快好省地建设社会主义总路线。锻模型腔加工程序,过去都用机械加工(如车、刨、铣、钻、钳等),当模块外形尺寸经刨加工好后,在划型腔尺寸线的范围内有用车和铣的粗、精加工完型腔。淬火前后,均需手工锉磨精修,但表面刀纹深,余量大,最后还要钳工抛光(用砂皮打光)成形。工作量大,周期长(每套模具总工时需448小时左右)。同时壹副锻模如因配料、制造工艺或锻造工序等选择不当,整付锻模制成后,不经几打,即告报废。因此,始终存在着锻模制造供不应求的局面, At present, the application of D5540A and D5570A EDM to mold cavities, especially forging dies, has drawn people’s attention because it is in line with the general line of building socialism in our country which is more efficient and economical. Forging cavity processing program, in the past with mechanical processing (such as cars, planing, milling, drilling, pliers, etc.), when the module dimensions after planing processing, , Finish machining cavity. Before and after quenching, are required manual rasping refined, but the surface deep knife, the remaining large, and finally fitter polishing (sand polishing) forming. Heavy workload, long cycle (each mold total working hours to be about 448 hours). At the same time a forging die, such as ingredients, manufacturing processes or forging process improper choice, the completion of the forging made, without a few dozen, that scrapped. Therefore, there is always a shortage of forging die manufacturing situation,