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电火花加工是一项特种而较先进的技术,为了向微精加工技术发展,上海仪表厂在1982年研制成一台D—83型电火花回转行程微精加工机床。它具有电火花磨削和穿孔加工多种功
EDM is a special and more advanced technology, in order to micro-processing technology, Shanghai Instrument Factory in 1982 developed into a D-83-type EDM rotary micro-finishing machine tools. It has EDM grinding and perforating a variety of work