电加工与模具
電加工與模具
전가공여모구
ELECTROMACHINING & MOULD
2015年
z1期
54-58,62
,共6页
大深径比超深小孔%液体成膜%电极管平头低损耗%钨钼类高熔金属超深小孔%航空叶片气膜孔
大深徑比超深小孔%液體成膜%電極管平頭低損耗%鎢鉬類高鎔金屬超深小孔%航空葉片氣膜孔
대심경비초심소공%액체성막%전겁관평두저손모%오목류고용금속초심소공%항공협편기막공
ultra deep micro hole%layer of insulating film%flat shaped electrode loss%tungsten molybdenum materials%cooling film holes on aero engine blade
通过对超深小孔电火花复合加工工艺的试验研究，研发了一种液体成膜的低浓度电解质环保水溶液，作为电火花高速小孔机专用工作液，用于超深小孔的电火花复合加工，成功解决了大深径比超深小孔的电火花加工工艺难题。而其中独具特点的“电极管平头低损耗”现象，也为解决诸如钨钼类高熔金属超深小孔及航空发动机叶片气膜孔加工等难题找到了一种新的工艺方法。
通過對超深小孔電火花複閤加工工藝的試驗研究，研髮瞭一種液體成膜的低濃度電解質環保水溶液，作為電火花高速小孔機專用工作液，用于超深小孔的電火花複閤加工，成功解決瞭大深徑比超深小孔的電火花加工工藝難題。而其中獨具特點的“電極管平頭低損耗”現象，也為解決諸如鎢鉬類高鎔金屬超深小孔及航空髮動機葉片氣膜孔加工等難題找到瞭一種新的工藝方法。
통과대초심소공전화화복합가공공예적시험연구，연발료일충액체성막적저농도전해질배보수용액，작위전화화고속소공궤전용공작액，용우초심소공적전화화복합가공，성공해결료대심경비초심소공적전화화가공공예난제。이기중독구특점적“전겁관평두저손모”현상，야위해결제여오목류고용금속초심소공급항공발동궤협편기막공가공등난제조도료일충신적공예방법。
To drill the ultra deep micro hole by electrical-discharge machining technique ,mass of experiments were carried out with kinds of different technical approach. At last ,a new kind of appropriative working fluid was developed ,with which a layer of electrochemical passivation insulating film could be formed on the inner hole wall of the work piece to avoid side discharge ,the shape of the end of the electrode is flat instead of cone ,as a result. At the same time ,electrode loss was decreased significantly,based on which the efficiency of electrical-discharge drilling was improved. This kind of electrical-discharge machining working fluid could be applied for drilling deep hole on the tungsten molybdenum materials and manufacturing cooling film holes on aero engine blade.
