Kuyini ukushisela nge-laser? Kuchazwa Ukushisela Nge-Laser! Konke okudingeka ukwazi mayelana nokushisela nge-laser, kufaka phakathi izimiso ezibalulekile kanye nemigomo yenqubo eyinhloko!
Amakhasimende amaningi awaqondi izimiso eziyisisekelo zokusebenza komshini wokushisela nge-laser, ingasaphathwa eyokukhetha umshini wokushisela nge-laser ofanele, noma kunjalo i-Mimowork Laser ilapha ukuzokusiza wenze isinqumo esifanele futhi ikunikeze ukwesekwa okwengeziwe ukukusiza ekuqondeni ukushisela nge-laser.
Kuyini Ukushisela Nge-Laser?
Ukushisela nge-laser uhlobo lokushisela ngokuncibilikisa, kusetshenziswa umsebe we-laser njengomthombo wokushisa wokushisela, isimiso sokushisela ukuthi indlela ethile yokuvuselela indawo esebenzayo, yakha ukujiya kwesikhala esiphendukayo, bese iguqulwa ibe umsebe wokukhanya ovuselelwe, lapho umsebe kanye nengxenye yomsebenzi kuxhumana, amandla amuncwa yisiqeshana somsebenzi, lapho izinga lokushisa lifinyelela endaweni yokuncibilikisa yezinto zingashiselwa.
Ngokusho kwendlela eyinhloko yokuxhuma ichibi, ukushisela nge-laser kunezindlela ezimbili eziyisisekelo zokushisela: ukushisela kokuqhuba ukushisa kanye nokushisela kokungena okujulile (i-keyhole). Ukushisa okukhiqizwa ukushisela kokuqhuba ukushisa kusatshalaliswa engxenyeni yokusebenza ngokudluliselwa kokushisa, ukuze ubuso bokushisela buncibilike, kungabikho ukuhwamuka okufanele kwenzeke, okuvame ukusetshenziswa ekushiseni izingxenye ezincane ezinejubane eliphansi. Ukushisela kokuhlanganisa okujulile kuyawushisa umkhiqizo futhi kwakha inani elikhulu le-plasma. Ngenxa yokushisa okuphezulu, kuzoba nezimbobo ngaphambili kwechibi elincibilikisiwe. Ukushisela kokungena okujulile kuyindlela yokushisela ye-laser esetshenziswa kakhulu, ingashisela ingxenye yomsebenzi kahle, futhi amandla okufaka makhulu, okuholela esivinini sokushisela esisheshayo.
Amapharamitha Enqubo Ekushiseni Nge-Laser
Kunezinhlobo eziningi zezinqubo ezithinta ikhwalithi yokushisela nge-laser, njengobuningi bamandla, i-laser pulse waveform, i-defocusing, isivinini sokushisela kanye nokukhetha igesi yokuvikela eyisizayo.
Ubuningi Bamandla E-Laser
Ubuningi bamandla bungenye yemingcele ebaluleke kakhulu ekucutshungulweni kwe-laser. Ngobuningi bamandla aphezulu, ungqimba olungaphezulu lungashiswa lube sezingeni lokubila ngaphakathi kwe-microsecond, okuholela enanini elikhulu lokuhwamuka. Ngakho-ke, ubuningi bamandla aphezulu bunenzuzo ezinqubweni zokususa izinto ezifana nokubhoboza, ukusika kanye nokuqopha. Ngobuningi bamandla aphansi, kuthatha ama-millisecond amaningana ukuze izinga lokushisa lobuso lifinyelele ezingeni lokubila, futhi ngaphambi kokuba ubuso bube nomhwamuko, phansi kufinyelela ezingeni lokuncibilika, okulula ukwakha i-weld enhle yokuncibilika. Ngakho-ke, ngesimo se-laser welding yokushisa, ububanzi bobuningi bamandla buyi-104-106W/cm2.
Ifomu Lamagagasi E-Laser Pulse
I-laser pulse waveform ayiyona nje ipharamitha ebalulekile yokuhlukanisa ukususwa kwezinto ekuncibilikeni kwezinto, kodwa futhi iyipharamitha eyinhloko yokunquma ivolumu kanye nezindleko zemishini yokucubungula. Lapho umsebe we-laser onamandla aphezulu udutshulwa ebusweni bezinto, ubuso bezinto buzoba nokulahlekelwa okungu-60 ~ 90% kwamandla e-laser abonakalisiwe futhi acatshangelwe, ikakhulukazi igolide, isiliva, ithusi, i-aluminium, i-titanium nezinye izinto ezinokukhanya okunamandla kanye nokudluliselwa kokushisa okusheshayo. Ukukhanya kwensimbi kuyahlukahluka ngokuhamba kwesikhathi ngesikhathi sokushaya kwe-laser. Lapho izinga lokushisa lobuso bezinto lenyuka laya endaweni yokuncibilika, ukukhanya kwehla ngokushesha, futhi lapho ubuso busesimweni sokuncibilika, ukukhanya kuzinza ngenani elithile.
Ububanzi be-Laser Pulse
Ububanzi be-pulse buyipharamitha ebalulekile yokushisela nge-laser eshaywayo. Ububanzi be-pulse bunqunywa ukujula kokungena kanye nendawo ethintekile ekushiseni. Uma ububanzi be-pulse bude, indawo ethintekile ekushiseni yayinkulu, futhi ukujula kokungena kwanda ngamandla angu-1/2 obubanzi be-pulse. Kodwa-ke, ukwanda kobubanzi be-pulse kuzonciphisa amandla aphezulu, ngakho-ke ukwanda kobubanzi be-pulse kuvame ukusetshenziselwa ukushisela ngokushisa, okuholela kusayizi we-weld ebanzi nengajulile, efanelekile kakhulu ekushiseni ngama-lap plate amancane namakhulu. Kodwa-ke, amandla aphezulu aphansi aholela ekufakweni kokushisa okweqile, futhi into ngayinye inobubanzi be-pulse obuhle kakhulu obukhulisa ukujula kokungena.
Ubuningi bokususa ukugxila
Ukushisela nge-laser ngokuvamile kudinga inani elithile lokukhumula ukugxila, ngoba ubuningi bamandla besikhungo sendawo ekugxilweni nge-laser buphezulu kakhulu, okulula ukuhwamukisa izinto zokushisela zibe yimigodi. Ukusatshalaliswa kobuningi bamandla kuyafana kakhulu endaweni ngayinye kude nokugxila nge-laser.
Kunezindlela ezimbili zokususa ukugxila:
Ukuhlanzwa kwe-Positive kanye ne-Negative. Uma i-focal plane itholakala ngaphezu kwe-workpiece, ihlanzwa kwe-positive; ngaphandle kwalokho, ihlanzwa kwe-negative. Ngokusho kwe-geometric optics theory, lapho ibanga phakathi kwe-positive kanye ne-negative defocusing planes kanye ne-welding plane lilingana, ubukhulu bamandla endizeni ehambisanayo bucishe bufane, kodwa empeleni, isimo se-metallic pool esitholiwe sihlukile. Endabeni ye-negative defocus, kungatholakala ukungena okukhulu, okuhlobene nenqubo yokwakheka kwe-metallic pool.
Isivinini Sokushisela
Ijubane lokushisela linquma ikhwalithi yendawo yokushisela, ukujula kokungena, indawo ethintekile ekushiseni njalo njalo. Ijubane lokushisela lizothinta okokufaka ukushisa ngeyunithi ngayinye ngesikhathi. Uma ijubane lokushisela lihamba kancane, okokufaka ukushisa kuphakeme kakhulu, okuholela ekushiseni kwengxenye yokusebenza. Uma ijubane lokushisela lishesha kakhulu, okokufaka ukushisa kuncane kakhulu, okuholela ekushiseni kwengxenye yokusebenza kancane futhi kungaqedwanga. Ukunciphisa ijubane lokushisela kuvame ukusetshenziselwa ukuthuthukisa ukungena.
Igesi Yokuvikela Ukushaya Okungeziwe
Igesi yokuvikela ukushaywa okusizayo iyinqubo ebalulekile ekushiseni nge-laser enamandla amakhulu. Ngakolunye uhlangothi, ukuvimbela izinto zensimbi ukuthi zingangcolisi futhi zingcolise isibuko esigxilile; Ngakolunye uhlangothi, ukuvimbela i-plasma ekhiqizwa enkambisweni yokushisisa ukuthi ingagxili kakhulu futhi kuvimbele i-laser ukuthi ingafiki ebusweni bezinto ezibonakalayo. Enkambisweni yokushisisa nge-laser, i-helium, i-argon, i-nitrogen kanye namanye amagesi kuvame ukusetshenziswa ukuvikela ichibi elincibilikisiwe, ukuze kuvinjelwe umsebenzi ekushiseni kubunjiniyela bokushisisa. Izici ezifana nohlobo lwegesi evikelayo, ubukhulu bokugeleza komoya kanye ne-Angle evuthelayo zinomthelela omkhulu emiphumeleni yokushisisa, futhi izindlela ezahlukene zokushisisa nazo zizoba nomthelela othile ekhwalithini yokushisisa.
I-Laser Welder esincomayo esiyisebenzisayo:
Umshiseli we-Laser - Indawo Yokusebenza
◾ Izinga lokushisa lendawo yokusebenza: 15~35 ℃
◾ Ububanzi bomswakama endaweni yokusebenza: < 70% Akukho ukujiya
◾ Ukupholisa: i-water cooler iyadingeka ngenxa yomsebenzi wokususa ukushisa kwezingxenye eziqeda ukushisa nge-laser, ukuqinisekisa ukuthi i-laser welder isebenza kahle.
(Ukusetshenziswa okuningiliziwe kanye nomhlahlandlela mayelana ne-water chiller, ungabheka:Izindlela Zokuvimbela Ukuqandisa Kwesistimu Ye-Laser ye-CO2)
Ufuna ukwazi okwengeziwe ngabashiseli be-laser?
Isikhathi sokuthunyelwe: Disemba-22-2022