【正文】 20B251B251GYL3 B614B251B614GXL1 B9B804B804GYL2 B63B511B511GYL2 B33B157B157GYL2 B8B11B11GYL1 B52B5B52GXL4 B121B71B121GXL4 B105B103B105GXL4 B38B90B90GYL4 B3B128B128GYL3 B39B209B209GYL3 B44B394B394GYL3 B10B428B428GYL3 B859B316B859GXL1 B25B136B136GYL2 B142B1021B1021GYL2 B111B988B988GYL2 B955B351B955GXL3 B317B100B317GXL3 B41B18B41GXL2 B90B93B93GYL2 B77B112B112GYL2 B17B52B52GYL2 B3B6B6GYL1 B36B18B36GXL1 B85B22B85GXL1 B100B26B100GXL1 B322B130B322GXL1 B752B332B752GXL1 B159B66B159GXL1 B37B402B402GYL2 B62B799B799GYL2 B69B947B947GYL2 B81B799B799GYL2 B99B361B361GYL2 B64B118B118GYL2 B2B84B84GYL2 B16B14B16GXL1 B126B50B126GXL4 B182B130B182GXL4 B109B112B112GYL4 B50B108B108GYL4 B10B138B138GYL4 B7B290B290GYL3 B7B536B536GYL4 B15B318B318GYL4 B155B0B155GXL1 B248B109B248GXL4 B357B153B357GXL4 B112B7B112GXL4 B91B123B123GYL4 B20B276B276GYL4 B88B141B141GYL3 B107B40B107GXL3 B316B108B316GXL2 B257B446B446GYL2 B197B68B197GXL3 B7B151B151GYL4 B95B1239B1239GYL4 B410B170B410GXL1 B396B104B396GXL1 B143B24B143GXL4 B52B52B52GYL4 B7B79B79GYL4 B38B97B97GYL3 B327B201B327GXL3 B601B243B601GXL3 B71B723B723GYL4 B117B889B889GYL4 B164B839B839GYL4 B64B261B261GYL4 B214B0B214GXL1 B47B144B144GYL1 B234B834B834GYL1 B151B691B691GYL1 B11B370B370GYL1 B15B133B133GYL2 B11B15B15GYL1 B42B10B42GXL4 B135B162B162GYL4 B123B216B216GYL4 B36B132B132GYL4 B18B135B135GYL3 B63B220B220GYL3 B181B514B514GYL3 B370B1008B1008GYL3 B192B465B465GYL3 B30B122B122GYL4 B318B1034B1034GYL4 B341B772B772GYL4 B291B484B484GYL4 B235B242B242GYL4 B152B282B282GYL1 B111B538B538GYL1 B77B386B386GYL1 B0B125B125GYL4 B7276B0B7276GXL1 B78B124B124GYL2 B90B12B90GXL1 B321B31B321GXL1 B571B91B571GXL1 B698B121B698GXL1 B699B121B699GXL1 B386B76B386GXL1 B27B1746B1746GYL1 B4B1596B1596GYL1 B47B1052B1052GYL2 B54B566B566GYL2 B376B84B376GXL3 B462B90B462GXL3 B216B28B216GXL3 B110B25B110GXL2 B155B82B155GXL2 B137B109B137GXL2 B58B87B87GYL2 B1B8B8GYL1 B51B14B51GXL1 B300B48B300GXL1 B591B147B591GXL1 B621B180B621GXL1 B405B150B405GXL1 B293B134B293GXL1 B287B132B287GXL1 B250B97B250GXL1 B171B29B171GXL1 B156B26B156GXL4 B198B84B198GXL4 B165B114B165GXL4 B66B101B101GYL4 B10B80B80GYL3 B109B98B109GXL3 B328B133B328GXL3 B622B173B622GXL3 B740B180B740GXL3 B178B203B203GYL4 B47B188B188GYL4 B11B301B301GYL3 B34B318B318GYL3 B17B229B229GYL3 B7B182B182GYL3 B7B183B183GYL3 B13B554B554GYL3 B24B1299B1299GYL3 B26B1506B1506GYL3 B142B28B142GXL1 B926B212B926GXL1 B792B174B792GXL1 B357B40B357GXL1 B187B74B187GXL4 B281B197B281GXL4 B22B20B22GXL4 B7821B0B7821GXL1 B220B351B351GYL1 B353B616B616GYL1 B405B808B808GYL1 B369B920B920GYL1 B247B687B687GYL1 B407B188B407GXL3 B500B229B500GXL3 B446B199B446GXL3 B168B61B168GXL3 B37B0B37GXL3 B28B0B28GXL3 B49B31B49GXL2 B122B133B133GYL2 B114B163B163GYL2 B37B101B101GYL2 B9B23B23GYL1 B99B21B99GXL1 B465B116B465GXL1 B1010B347B1010GXL1 B389B137B389GXL1 B9B398B398GYL2 B65B881B881GYL2 B66B622B622GYL2 B147B73B147GXL3 B515B216B515GXL3 B216B63B216GXL3 B81B84B84GYL1 B453B324B453GXL1 B513B378B513GXL1 B317B315B317GXL1 B158B271B271GYL1 B32B234B234GYL1 B3B142B142GYL2 B10B17B17GYL1 B41B7B41GXL4 B183B136B183GXL4 B66B67B67GYL4 B27B131B131GYL4 B35B332B332GYL3 B284B366B366GYL3 B258B166B258GXL3 B286B141B286GXL3 B209B280B280GYL4 B54B185B185GYL4 B11B208B208GYL3 B32B282B282GYL3 B37B303B303GYL3 B22B271B271GYL3 B21B371B371GYL3 B1455B469B1455GXL1 B111B0B111GXL1 B171B176B176GYL1 B16B87B87GYL2 B157B893B893GYL2 B96B365B365GYL2 B69B86B86GYL2 B47B59B59GYL2 B17B66B66GYL2 B31B127B127GYL1 B61B72B72GYL1 B103B16B103GXL4 B174B89B174GXL4 B138B15B138GXL1 B298B55B298GXL1 B413B117B413GXL1 B386B144B386GXL1 B207B137B207GXL1 B80B81B81GYL1 B18B6B18GXL1 B18B5B18GXL4 B33B9B33GXL4 B100B62B100GXL4 B245B181B245GXL4 B227B200B227GXL4 B58B111B111GYL4 B20B74B74GYL3 B89B110B110GYL3 B119B171B171GYL3 B70B246B246GYL3 B58B317B317GYL3 B87B411B411GYL3 B87B393B393GYL3 B93B49B93GXL4 B37B89B89GYL3 B280B113B280GXL3 B430B114B430GXL3 B337B120B337GXL3 B48B40B48GXL2 B10B201B201GYL2 B521B155B521GXL1 B439B89B439GXL1 B0B179B179GYL2 B10B343B343GYL1 B33B504B504GYL1 B22B455B455GYL1 B29B245B245GYL2 B188B38B188GXL2 B288B25B288GXL3 B375B75B375GXL3 B410B123B410GXL3 B373B128B373GXL3 B72B634B634GYL4 B87B838B838GYL4 B10B171B171GYL4 B4B448B448GYL4 B2B5B5GYL2 B101B539B539GYL2 B159B227B227GYL3 B1630B595B1630GXL3 B8B633B633GYL3 B1B900B900GYL3 B291B0B291GXL1 B252B29B252GXL4 B164B76B164GXL4 B97B142B142GYL4 B35B250B250GYL4 B33B133B133GYL3 B72B11B72GXL2 B207B150B207GXL2 B236B197B236GXL2 B111B97B111GXL2 B180B40B180GXL3 B2B1037B1037GYL3 B22B2220B2220GYL3 B491B137B491GXL1 B2021B479B2021GXL1 B0B1403B1403GYL2 B144B43B144GXL3 B291B64B291GXL3 B175B11B175GXL2 B171B76B171GXL2 B124B90B124GXL2 B25B35B35GYL2 B0B23B23GYL2 B0B1B1GYL2 B82B46B82GXL1 B383B118B383GXL1 B465B136B465GXL1 B0B1443B1443GYL2 B269B67B269GXL3 B280B35B280GXL3 B209B12B209GXL3 B145B26B145GXL2 B110B74B110GXL2 B71B89B89GYL2 B9B26B26GYL2 B95B13B95GXL1 B254B40B254GXL1 B406B121B406GXL1 B472B157B472GXL1 B471B157B471GXL1 B379B117B379GXL1 B187B36B1。這種熱膨脹和局部微爆炸拋出融化和氣化的金屬材料而實現(xiàn)對工件材料進行電蝕切割加工。 課題背景 由于大學三年即將畢業(yè) ，為了檢驗我們在校期間的學習成果，學院交給我們一項設計任務，希望我們提高自身的操作水平，增長實踐經(jīng)驗，為了以后更好的在社會上發(fā)展 打下了基礎。 對于快走絲線切割，電極絲的損耗也是一項重要的指標，要降低電極絲的損耗首先必須減少放電過程中離子對電極絲的轟擊作用，并盡量減少電極絲對放電能量的吸收，這就需電極絲表面能快速汽化，使電極絲表面在得到冷卻的同時把熱能釋放回放電通道內(nèi)，形成汽化壓力，從而提高對蝕 除產(chǎn)物的排除能力，因此只有保持極間均勻冷卻作用才可使工作介質(zhì)在電極絲表面形成一層吸附膜，以減緩正離子對電極絲有轟擊作用，同時通過工作介質(zhì)自身的揮發(fā)帶走大量的熱量，以降低電極絲的損耗并提高其耐用度。當 接受 一脈沖電壓時，在電極絲和工件之間產(chǎn) 生一次火花放電，在放電通道的中心瞬時溫度可高達 10000℃以上，高溫使工件金屬融化，甚至有少量氣化，高溫也使電極絲和工件之間的工作液部分產(chǎn)生氣化，這些氣化后的工作液和金屬蒸汽瞬間迅速膨脹，并具有爆