數控等離子切(qie)割(ge)機切(qie)割(ge)參數的(de)設置流程
發布時間:2020-06-20 22:47:03要能(neng)恰(qia)當(dang)應(ying)用數控等離(li)子切割機(ji)機(ji)開(kai)展高品質的(de)迅速(su)切(qie)(qie)(qie)(qie)割(ge)(ge),務必對(dui)切(qie)(qie)(qie)(qie)割(ge)(ge)加(jia)工工藝(yi)主(zhu)要(yao)(yao)參(can)數開(kai)展刻(ke)骨(gu)銘心地了解和(he)(he)把握。數控(kong)等離子(zi)切(qie)(qie)(qie)(qie)割(ge)(ge)機(ji)機(ji)的(de)應用及(ji)切(qie)(qie)(qie)(qie)割(ge)(ge)加(jia)工工藝(yi)主(zhu)要(yao)(yao)參(can)數的(de)挑選對(dui)切(qie)(qie)(qie)(qie)割(ge)(ge)品質、切(qie)(qie)(qie)(qie)割(ge)(ge)速(su)率(lv)(lv)和(he)(he)高效率(lv)(lv)等切(qie)(qie)(qie)(qie)割(ge)(ge)實際效果的(de)危(wei)害(hai)是尤為重要(yao)(yao)的(de)。那麼數控(kong)等離子(zi)切(qie)(qie)(qie)(qie)割(ge)(ge)機(ji)基本參(can)數步驟具體表現有什(shen)么呢(ni)?深入分(fen)析以下:
一、切(qie)(qie)割速率(lv)過快促使(shi)激光切(qie)(qie)割的線(xian)動(dong)能小于需要的數(shu)值,割縫中(zhong)水射(she)流(liu)不可(ke)以迅(xun)速將熔融的激光切(qie)(qie)割溶體馬上刮走而產生(sheng)很(hen)大的后拖(tuo)量,隨著著創(chuang)口掛渣,創(chuang)口工藝性(xing)能降低。
二(er)、切割速(su)率適當(dang)地(di)提(ti)升能改(gai)進創口品質,即創口略微變小,創口表層更整平(ping),另外可減(jian)少形(xing)變。
三、當(dang)速率極低時(shi),因(yin)為創口過寬,電(dian)孤乃至(zhi)會滅(mie)掉。不難看出,優良的激光切割品質與切割速率是離不開的。
四、當切割(ge)速率太低時,因(yin)為切割(ge)處是低溫等離子弧的(de)陽(yang)極(ji)氧(yang)化,以(yi)便保持電孤(gu)本身(shen)的(de)平穩(wen),陽(yang)極(ji)氧(yang)化黑(hei)斑或陽(yang)極(ji)氧(yang)化區(qu)必定要(yao)在(zai)離電孤(gu)近期(qi)的(de)割(ge)縫周邊尋找傳(chuan)導(dao)電流地區(qu),另外會向水射流的(de)軸(zhou)向傳(chuan)送大量(liang)的(de)發熱(re)量(liang),因(yin)而使(shi)創口變大,創口兩邊熔(rong)化的(de)原材(cai)料在(zai)底緣集聚(ju)并凝結,產生(sheng)不(bu)容易清除的(de)掛渣,并且創口上緣因(yin)加溫熔(rong)融(rong)過多而產生(sheng)圓弧。
五、切割(ge)(ge)速率:好切割(ge)(ge)速率范疇(chou)可依照機器設備(bei)表(biao)明(ming)選中或用實驗來明(ming)確,因(yin)為原材料的(de)薄厚度,材料不一樣(yang),溶(rong)點高矮,導熱系(xi)數(shu)尺寸及其熔融后的(de)界面張力(li)等要素,激光切割(ge)(ge)速率也相對的(de)轉變。
六、電(dian)(dian)(dian)(dian)(dian)孤(gu)工(gong)(gong)(gong)(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya):一般(ban)覺得開關電(dian)(dian)(dian)(dian)(dian)源一切(qie)正常輸出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)即是(shi)激光切(qie)割(ge)工(gong)(gong)(gong)(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。低溫(wen)等(deng)離(li)子弧自(zi)動切(qie)割(ge)機一般(ban) 有較(jiao)高的(de)(de)滿載工(gong)(gong)(gong)(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和工(gong)(gong)(gong)(gong)(gong)作標準電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),在(zai)應用電(dian)(dian)(dian)(dian)(dian)離(li)能高的(de)(de)汽(qi)體(ti)如(ru)N2、氡氣(qi)或氣(qi)體(ti)時(shi),平穩低溫(wen)等(deng)離(li)子弧所需的(de)(de)工(gong)(gong)(gong)(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)會高些(xie)。當(dang)電(dian)(dian)(dian)(dian)(dian)流量一定時(shi),工(gong)(gong)(gong)(gong)(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)提升(sheng)代表著電(dian)(dian)(dian)(dian)(dian)孤(gu)露(lu)點溫(wen)度的(de)(de)提升(sheng)和激光切(qie)割(ge)工(gong)(gong)(gong)(gong)(gong)作能力的(de)(de)提升(sheng)。假如(ru)在(zai)露(lu)點溫(wen)度提升(sheng)的(de)(de)另(ling)外,減少水射(she)流的(de)(de)直(zhi)徑并增(zeng)加汽(qi)體(ti)的(de)(de)水流量,通常能夠 得到 迅速的(de)(de)切(qie)割(ge)速率和更強的(de)(de)激光切(qie)割(ge)品質。
七、切割(ge)電流量:它是最重要的激光切割(ge)加工工藝主要參數,立即決策(ce)了激光切割(ge)的薄厚(hou)和速率,即切割(ge)工作能(neng)力。
切割電流量導致其(qi)危害(hai)有(you)以下好多個層面:
1)切(qie)割電(dian)流量擴(kuo)大,電(dian)孤(gu)直徑提升,電(dian)孤(gu)變寬(kuan)促使創口變大;
2)切(qie)割(ge)電流量(liang)擴大(da),電孤(gu)動能(neng)提升(sheng),切(qie)割(ge)工(gong)作(zuo)能(neng)力提升(sheng),切(qie)割(ge)速率是隨著(zhu)擴大(da);
3)切(qie)割電流(liu)量(liang)過(guo)大促使噴(pen)頭耗熱量(liang)擴大,噴(pen)頭迫不得已(yi)損害,激光切(qie)割品(pin)質當(dang)然也降低,乃至(zhi)沒(mei)法開展(zhan)一(yi)切(qie)正常割。因(yin)此在激光切(qie)割前應(ying)依據原(yuan)材料的薄(bo)厚恰當(dang)采用激光切(qie)割電流(liu)量(liang)和相對(dui)的噴(pen)頭。
八、噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi):指噴(pen)(pen)頭(tou)(tou)(tou)內(nei)(nei)孔與激光(guang)(guang)(guang)切(qie)(qie)割表(biao)層(ceng)的(de)(de)(de)(de)(de)間距,它組(zu)成了全部(bu)弦長(chang)的(de)(de)(de)(de)(de)一部(bu)分。因(yin)為低溫等(deng)離子弧激光(guang)(guang)(guang)切(qie)(qie)割一般應用(yong)(yong)恒流(liu)(liu)電(dian)源或陡(dou)降外(wai)特點(dian)的(de)(de)(de)(de)(de)開關電(dian)源,噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi)提(ti)(ti)升(sheng)(sheng)后,電(dian)流(liu)(liu)量(liang)轉變(bian)不大(da),但會(hui)(hui)(hui)(hui)使弦長(chang)提(ti)(ti)升(sheng)(sheng)并造(zao)成電(dian)孤工(gong)(gong)作電(dian)壓擴大(da),進而使電(dian)孤輸出功(gong)(gong)(gong)率提(ti)(ti)升(sheng)(sheng);但另外(wai)也會(hui)(hui)(hui)(hui)使曝露在(zai)自然環境中(zhong)的(de)(de)(de)(de)(de)弦長(chang)提(ti)(ti)高(gao)(gao),弧柱(zhu)損害的(de)(de)(de)(de)(de)動能(neng)(neng)增加(jia)。在(zai)2個要素(su)綜合(he)性功(gong)(gong)(gong)效的(de)(de)(de)(de)(de)狀(zhuang)況下(xia),前(qian)面(mian)一種(zhong)的(de)(de)(de)(de)(de)功(gong)(gong)(gong)效通常(chang)徹底(di)被后面(mian)一種(zhong)所相抵,反(fan)倒會(hui)(hui)(hui)(hui)使合(he)理(li)的(de)(de)(de)(de)(de)激光(guang)(guang)(guang)切(qie)(qie)割動能(neng)(neng)減少,導致激光(guang)(guang)(guang)切(qie)(qie)割工(gong)(gong)作能(neng)(neng)力(li)減少。一般主要表(biao)現是(shi)(shi)(shi)激光(guang)(guang)(guang)切(qie)(qie)割水(shui)射(she)流(liu)(liu)的(de)(de)(de)(de)(de)吹力(li)變(bian)弱,創口下(xia)邊殘余(yu)的(de)(de)(de)(de)(de)爐渣增加(jia),上端邊沿過(guo)熔而出現圓(yuan)弧等(deng)。此(ci)外(wai),從(cong)低溫等(deng)離子水(shui)射(she)流(liu)(liu)的(de)(de)(de)(de)(de)形狀(zhuang)層(ceng)面(mian)考慮到,水(shui)射(she)流(liu)(liu)直徑在(zai)離去搶口后是(shi)(shi)(shi)向外(wai)澎漲的(de)(de)(de)(de)(de),噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi)的(de)(de)(de)(de)(de)提(ti)(ti)升(sheng)(sheng)必定造(zao)成創口總(zong)寬(kuan)(kuan)增加(jia)。因(yin)此(ci),采用(yong)(yong)盡可能(neng)(neng)小的(de)(de)(de)(de)(de)噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi)對提(ti)(ti)升(sheng)(sheng)激光(guang)(guang)(guang)切(qie)(qie)割速率和激光(guang)(guang)(guang)切(qie)(qie)割品質(zhi)全是(shi)(shi)(shi)有利的(de)(de)(de)(de)(de),可是(shi)(shi)(shi),噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi)過(guo)低時將(jiang)會(hui)(hui)(hui)(hui)會(hui)(hui)(hui)(hui)造(zao)成雙弧狀(zhuang)況。選用(yong)(yong)瓷器外(wai)噴(pen)(pen)頭(tou)(tou)(tou)能(neng)(neng)夠(gou) 將(jiang)噴(pen)(pen)頭(tou)(tou)(tou)高(gao)(gao)寬(kuan)(kuan)比(bi)設成零,即噴(pen)(pen)管內(nei)(nei)孔直接接觸被激光(guang)(guang)(guang)切(qie)(qie)割表(biao)層(ceng),能(neng)(neng)夠(gou) 得到 非常(chang)好的(de)(de)(de)(de)(de)實際效果。
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