电加工与模具
電加工與模具
전가공여모구
ELECTROMACHINING & MOULD
2015年
3期
66-70
,共5页
电火花线切割加工%大锥度加工%直纹面%广义电极丝模型%电极丝中心轨迹%线性化
電火花線切割加工%大錐度加工%直紋麵%廣義電極絲模型%電極絲中心軌跡%線性化
전화화선절할가공%대추도가공%직문면%엄의전겁사모형%전겁사중심궤적%선성화
WEDM%large-taper machining%ruled surface%generalized wire electrode model%trajectory of wire electrode%linear approximation
介绍了使用“广义电极丝模型”求取大锥度线切割加工工件上下表面电极丝中心轨迹的方法。结合仿真实例研究了轨迹的特点，仿真结果表明：轨迹为非规则曲线，为了提高编程精度，必须对轨迹进行线性化。在此基础上，提出了用二次高分辨率采样方法线性化电极丝中心轨迹，给出了方法的实现流程，并通过仿真验证了该方法的正确性。
介紹瞭使用“廣義電極絲模型”求取大錐度線切割加工工件上下錶麵電極絲中心軌跡的方法。結閤倣真實例研究瞭軌跡的特點，倣真結果錶明：軌跡為非規則麯線，為瞭提高編程精度，必鬚對軌跡進行線性化。在此基礎上，提齣瞭用二次高分辨率採樣方法線性化電極絲中心軌跡，給齣瞭方法的實現流程，併通過倣真驗證瞭該方法的正確性。
개소료사용“엄의전겁사모형”구취대추도선절할가공공건상하표면전겁사중심궤적적방법。결합방진실례연구료궤적적특점，방진결과표명：궤적위비규칙곡선，위료제고편정정도，필수대궤적진행선성화。재차기출상，제출료용이차고분변솔채양방법선성화전겁사중심궤적，급출료방법적실현류정，병통과방진험증료해방법적정학성。
The method to calculate the trajectories of the electrode wire on upper and lower surfaces of the large-taper workpiece on WEDM by using the generalized electrode wire model was introduced. The characteristics of the trajectories through several simulation examples was studied ,the simulation results show that the trajectories are irregular curve ,and trajectory linearization is necessary to improve the precision of trajectory programming. On this basis ,a double high resolution sampling method to realize the linear approximation of corresponding trajectories was proposed ,and the process of the method was illustrated. The correctness of the method by simulations experiments was verified.
