Ho tjheseletsa laser ke ho tsepamisa lebone la laser holim'a sebaka sa mosebetsi ka lense ea optical, e le hore thepa e qhibilihe ka potlako ho etsa letamo le qhibilihisitsoeng, ebe e pholile ka potlako ho theha lenonyeletso le cheselitsoeng.E na le litšoaneleho tsa karo-karolelano e kholo, lebelo la ho tjheseletsa ka potlako, le ho se kopane le workpiece, e leng bonolo ho finyella tlhahiso ea Automated, kahoo ts'ebetso ena e 'nile ea sebelisoa haholo.Leha ho le joalo, ka lebaka la tšebelisano e rarahaneng pakeng tsa mohloli oa mocheso oa laser le thepa nakong ea ts'ebetso ea ho tjheseletsa ka laser, hammoho le thepa e khethehileng ea 'mele ea li-alloys tsa aluminium le lisebelisoa tsa koporo, lisebelisoa tse phahameng tse bonts'ang li na le laser e phahameng ea reflectivity nakong ea welding, ts'ebetso e sa tsitsang ea welding, le bonolo ho hlahisa porosity mefokolo, joalo-joalo bothata.Ha u sebelisa li-lasers tse tloaelehileng ho tjheseletsa lisebelisoa tse bonahatsang haholo joalo ka aluminium le koporo, ho putlama ha lesoba la senotlolo ho tla hlahisa masoba a manyane le likhapha.Ka lebaka la li-splashes, tšepe ea weld e tla fokotseha, e hlahisang likoti le libaka tse sa tšoaneng;ho feta moo, lisebelisoa tsena li na le khanya e phahameng ea laser, Sekhahla sa ho monya se tlase, 'me boholo ba matla a bonahatsoa, ho fella ka ho futsaneha ho fokolang ha setlatsi;ka nako e ts'oanang, nakong ea ts'ebetso ea pholileng, ka lebaka la lebelo le pholileng le feteletseng, ho qhibiliha ha hydrogen le likhase tse ling ka letamong le qhibilihisitsoeng ho fokotsehile haholo 'me ho se ho le morao haholo ho baleha, ho fella ka pores.lihlahisoa.
Mekhoa e tloaelehileng ea welding ho fokotsa spatter le porosity
Mokhoa oa ho fokotsa spatter, ho fokotsa porosity, le ho fumana weld e boreleli ke bothata bo boholo ba ho tjheseletsa thepa e bonts'ang haholo.Likhamphani tse ngata tsa lehae le kantle ho naha le tsona li 'nile tsa tsoela pele ho hlahloba ntlha ena' me li hlahisitse lihlahisoa tsa tsona.
(1) Ho sebelisa hlooho ea tjheseletsa ea swing Mokhoa oa ho tjheseletsa oa swing o ka qhalakanya matla a matla, oa ntlafatsa ho tšoana ha mocheso oa weld, 'me oa fokotsa tlhahiso ea spatter le li-pores ho isa tekanyong e itseng.Hajoale, baetsi ba lihlooho tsa laser tse ka sehloohong (joalo ka Jiaqiang, Wanshunxing, Kirin, joalo-joalo) ba hlahisitse lihlooho tse tšoanang tsa laser welding.Empa ka nako e ts'oanang, ho na le mefokolo.Kaha matla a matla a laser a fokotsehile, matla a tlameha ho eketseha kapa lebelo la ho cheselletsa le lokela ho fokotsoa.
(2) Sebelisa hlooho ea tjheseletsa e entsoeng ka mahlakore a mabeli ho kopanya laser fiber le laser semiconductor le hlooho ea li-welding tse peli-wavelength, 'me li kopane sebakeng sa welding.Fiber laser e etsa welding e tebileng ea ho kenella.Fokotsa ho fafatsa.Hajoale, baetsi ba lihlooho tsa laser joalo ka Jiaqiang le Wanshunxing le bona ba phatlalalitse lihlooho tse joalo tsa tjheseletsa.Leha ho le joalo, mokhoa ona oa ho tjheseletsa o hloka hore ho sebelisoe li-lasers tse peli, 'me motsoako oa thepa o rarahane le ho feta.
(3) Laser e nang le sebaka se khethehileng
Tharollo e ntle ka ho fetisisa e theko e boima e ka lehlakoreng la laser, ho fetola laser ea Gaussian ea ho fana ka leseli + ho khanya + bohareng, sebaka sa leseli se bohareng se tiisa botebo ba letamo le entsoeng ka ho qhibilihisoa, 'me sebaka sa leseli la selikalikoe se bapala karolo ea ho futhumatsa le ho pholisa butle, e bapisoa le molao-motheo oa welding o boletsoeng ka holimo oa li-wavelength tse peli.tshoanang.Bahlahisi ba tloaelehileng ba laser ba thakhotse lisebelisoa tse tšoanang tsa laser, joalo ka IPG's AMB laser le Raycus' ABP laser.
FRM ea GW Laser Tech ke eng
E le ho arabela mathata a ho cheselletsa thepa e boletsoeng ka holimo, GW Laser e 'nile ea hlahloba ka mokhoa o tsoelang pele tseleng ea tsoelo-pele ea thekenoloji,' me ea hlahisa setsebi se phahameng sa ho bonahatsa lintho tse bonahalang - FRM (Flexible Ring Mode) dynamic spot output laser, eo e ka fokotsa ka katleho ts'ebetso ea welding ea lisebelisoa tse bonts'ang haholo.Ho hlahisa li-splash le porosity.
FRM laser e kopanya li-module tse peli tsa optical ka har'a lesela la mantlha le lesale la mokokotlo oa fiber ka li-coupler tse hlophisitsoeng, li kopanya maballo a mabeli a laser hore e be seketsoana se le seng, ebe e se lebisa holim'a sebaka sa mosebetsi ho etsa sebaka se kopaneng.Ka ho fetola karo-karolelano ea matla e loketseng, bophara bo batlang bo le bophara ba tjheseletsa le karolo e tlase ea seam seam e ka thehoa, e ka ntlafatsang botsitso ba lesoba la senotlolo, 'me e ka fokotsa haholo spatter le ho fokotsa kutlo ea stomatal.
Laser ea FRM e ka laola matla a lebone la mantlha la fiber le leseli la mantlha la selikalikoe.E ka bonesa feela lebone le bohareng kapa lebone la selikalikoe, kapa ka bobeli li ka buloa ka nako e le 'ngoe ho etsa mekhoa e meraro ea sebaka se tloaelehileng, letheba la annular le sebaka se kopaneng;haeba e buletsoe ka nako e le 'ngoe, e ka khona The core le ring core li ka etsa hore matla a bohareng a matla a maholo ho feta matla a mantlha, kapa matla a bohareng a ka ba nyane ho feta matla a motheo, kapa matla a bohareng a lekana. ho matla a mantlha a selikalikoe, 'me kakaretso ea libopeho tse hlano tse fapaneng tsa letheba li ka fetoloa.
Bophara ba sebaka se bohareng bo nyane mme matla a matla a phahame.The tjheseletsa e thehiloeng ho teba ho kenella ka hare ho tjheseletsa mokgwa wa, e leng tla hlahisa keyhole le theha letamo le qhibilihisitsoeng le nang le karolo e khōlō karo-karolelano.Leha ho le joalo, e na le litlhoko tse phahameng holim'a lekhalo le ts'oanang, 'me palo e kholo ea mouoane oa tšepe o nang le khatello e phahameng e lokolloa ha senotlolo sa senotlolo se thehoa ka ho kenya tjheseletsa e tebileng, e atisang ho ba le lintlha tsa ho phatloha le ho phatloha.Mocheso oa letamo le entsoeng ka ho qhibilihisoa o phahame 'me phallo ea ka hare e mabifi,' me ho feto-fetoha ha letamo le qhibilihisitsoeng ho hlakile.
Bophara ba sebaka sa annular se seholo mme matla a matla a nyane.The tjheseletsa e itšetlehile ka mocheso conduction mode, e leng se ka etsa letamo e pharaletseng e qhibilihisitsoeng.Kaha tjheseletsa conduction e futhumatsang ha e thehe lesoba la senotlolo, mocheso oa letamo le qhibilihisitsoeng o tlase nakong ea ts'ebetso ea tjheseletsa, 'me ha ho na phetoho e hlakileng ea letamo la ho qhibiliha.Spatter, weld e bataletse ebile e ntle.Leha ho le joalo, ka lebaka la matla a matla a qhalakaneng, botebo bo boholo ba ho kenella bo ke ke ba fumanoa.
Ho kopanya tse peli hammoho, ka ho fetola tekanyo e nepahetseng ea matla, ha sebaka se bohareng se tiisa botebo ba letamo le qhibilihisitsoeng, sebaka sa annular se eketsa bophara le nako ea letamo le entsoeng ka ho qhibilihisoa, ka lehlakoreng le leng, se ntlafatsa botsitso ba lesoba le ho fokotsa. ho phatloha Ka lehlakoreng le leng, ho phalla ha letamo le entsoeng ka ho qhibilihisoa ho tsitsitse haholoanyane, li-bubble li phalla ka nako e telele, 'me monyetla oa ho thehoa ha porosity o fokotsehile.
Laser ea FRM e ka fana ka matla a felletseng a ho fihla ho 20KW, 'me e khona ho fetola maemo a khanya e tsoang.Bophara ba fiber e hlahisoang ke beam e bohareng ke 50μm/150μm, mme matla a tlhahiso a fihla ho 10KW;bophara ba lesale la seketsoana sa fiber ke 150μm/300μm, 'me matla a tlhahiso a fihla ho 10KW.Beam e bohareng ke laser fiber e nang le leqhubu la bolelele ba 1070nm, 'me sepakapaka sa selikalikoe se ka hlomelloa ka laser ea 976nm semiconductor ho kenyelletsa 1070nm fiber laser ho hlokomela ho kopanngoa ha maballo a habeli-wavelength le a li-laser tse peli.
FRM e na le phello e ntle ea welding
Bakeng sa ho bonts'a phello ea tjheseletso ea FRM, tse latelang li sebelisa laser ea FRM le laser e tloaelehileng ho cheselletsa lialloi tsa aluminium le ho li bapisa.
A 1.5KW + 1.5KW (50μm + 150μm) FRM laser e ne e sebelisetsoa ho weld 6061 alloy aluminium le botenya ba 3mm, 'me bapisoa le 3KW (100μm) laser tloaelehileng.Ho ka fumanoa ka ho hlaka hore spatter ea FRM laser welding e nyane haholo ho feta ea welding e tloaelehileng ea laser.
Lisampole tse cheselitsoeng li ile tsa buloa hore li shejoe ka metallographic.Ka lebaka la phello ea sebaka sa annular, weld e fumanoeng ke laser ea FRM e na le sebopeho se sephara sa holimo le tlase, 'me libaka tse ka holimo le tse tlase li bataletse;ha bophara ba tjheseletso ba welding e tlwaelehileng ya laser ha e le hantle bo fofela ka hodimo le tlase, mme bokahodimo bo putlama mme bokatlase bo ka tlase bo kobehile.
Matla a tsitsitseng a seam e cheselitsoeng ka mor'a ho tjheseletsa a lekoa, 'me matla a ho tsitsa a FRM a molemo ho feta a tloaelehileng a laser welding.
Lisebelisoa tsa bohlokoa tsa FRM
China e nka likoloi tse ncha tsa motlakase e le e 'ngoe ea liindasteri tsa eona tse supileng tsa maano.Kaha matla a lithium battery pack ke karolo ea bohlokoa ea likoloi tse ncha tsa matla, ka tsoelo-pele e tsoelang pele ea likoloi tse ncha tsa matla, e boetse e sebelisoa haholo le ho ntlafatsoa ka tsela e nepahetseng.
Ho ea ka lipalo-palo tse tsoang Setsing sa Lipatlisiso sa China sa Puhua, tlhokahalo ea lefats'e ea libeteri tsa lithium e tla tsoela pele ho phahama ho tloha 2017 ho ea ho 2020, 'me tlhokahalo ea lisebelisoa tsa betri ea lithium e tla tsoela pele ho hōla lilemong tse latelang tsa 3-5.Tsoelo-pele e potlakileng ea indasteri ea betri ea lithium e entse hore lik'hamphani tse kholo li eketse kaho ea lifeme tse ncha le ho atolosoa ha matla a tlhahiso.
Tšireletseho ea pakete ea betri e bohlokoa haholo.Hang ha ho hlōleha ho loketseng ho etsahala, ho tla lebisa liphellong tse tebileng haholo le ho sokela bophelo ba batho.Har'a bona, ntho e phethang karolo ea bohlokoa polokehong ea likoloi tsa motlakase ke ho chesoa ha likarolo tsa bohlokoa tsa pakete ea betri ea matla.Thepa ea bohlokoa ka ho fetisisa maemong ana ke motsoako oa aluminium, ho kenyelletsa le li-valve tse thibelang ho phatloha, li-cell seals, li-tab, mekoallo ea libese, joalo-joalo;e lateloa ke lisebelisoa tsa Koporo, tse kang lipalo, li-tab, joalo-joalo Boleng ba welding ba maemo ana bo tla ama ka ho toba ho tšepahala ha boleng ba betri pakete.
Bakeng sa ho tjheseletsa likarolo tse fapaneng tsa betri ea matla, laser ea FRM e sebelisang Guanghui Laser e ka rarolla bothata ba ho tjheseletsa, ho lemoha spatter ea zero ho welding, ha ho na li-pores holim'a metsi, ho kenella ka mokhoa o tsitsitseng, seam se setle sa welding, ho ntlafatsa boleng ba welding haholo. , le ho netefatsa ka katleho botsitso ba betri ea matla.Thobalano le polokeho.
Phetoho ea 'maraka oa likoloi tsa lefats'e ho ea ho motlakase ke mokhoa o akaretsang,' me tlasa ts'ebetso ena e akaretsang ea nts'etsopele, e tlameha ho fana ka litlhoko tse phahameng tsa theknoloji ea welding ea lithium-ion, mme ts'ebetso ea betri ea lithium-ion e fetohile 'maraka oa bohlokoa bakeng sa laser ea lapeng. lik'hamphani.Guanghui Laser e tla tsoelapele ho etsa boiteko tšimong ea lithium battery welding.Ka boqapi bo ikemetseng, lintlafatso tsa laser iterative li tla etsoa ho thusa bareki ho ntlafatsa lits'ebetso tsa welding le ho matlafatsa polokeho ea sehlahisoa le tlholisano.
Sengoli: Moenjiniere oa ts'ebeliso ea GW Laser Jiaxing Gu
Nako ea poso: Feb-15-2022