I-laser welding iwukugxilisa i-laser beam phezu kwendawo yokusebenza nge-optical lens, ukuze impahla incibilike ngokushesha yenze ichibi elincibilikisiwe, bese ipholiswa ngokushesha ukuze yakhe ilunga elishiselwe.Inezici ze-aspect ratio enkulu, isivinini sokushisela okusheshayo, nokungathintani ne-workpiece, okulula ukuyifinyelela ukukhiqizwa okuzenzakalelayo, ngakho le nqubo isetshenziswe kabanzi.Kodwa-ke, ngenxa yokuxhumana okuyinkimbinkimbi phakathi komthombo wokushisa we-laser kanye nezinto ngesikhathi senqubo yokushiswa kwe-laser, kanye nezakhiwo ezikhethekile ezibonakalayo ze-aluminium alloys nama-alloys ethusi, izinto ezibonisa ukukhanya okuphezulu zine-laser reflectivity ephezulu ngesikhathi sokushisela, inqubo yokushisela engazinzile, futhi kulula ukukhiqiza amaphutha e-porosity, njll. inkinga.Uma usebenzisa ama-lasers ajwayelekile ukushisela izinto ezibonisa ukukhanya kakhulu njenge-aluminium nethusi, ukugoqa kwembobo kakhiye kuzoveza izimbobo ezincane nama-splash.Ngenxa ye-splashes, insimbi ye-weld izoncishiswa, okuholela emigodini nezindawo ezingalingani;ngaphezu kwalokho, lezi zinto zinokukhanya okuphezulu kwe-laser, Izinga lokumuncwa liphansi, futhi amandla amaningi ayabonakala, okuholela ekuhlanganiseni okungalungile kwesigcwalisi;ngesikhathi esifanayo, phakathi nenqubo yokupholisa, ngenxa yesivinini sokupholisa ngokweqile, ukuncibilika kwe-hydrogen namanye amagesi echibini elincibilikisiwe kuncipha kakhulu futhi sekwephuzile kakhulu ukubaleka, okuholela ezimbotsheni.khiqiza.
Izindlela zokushisela ezijwayelekile zokunciphisa i-spatter kanye ne-porosity
Indlela yokunciphisa i-spatter, ukunciphisa i-porosity, kanye nokuthola i-weld ebushelelezi kuwubunzima obukhulu ekushiseleni izinto ezibonisa ukukhanya okuphezulu.Izinkampani eziningi zasekhaya nezangaphandle nazo ziqhubekile nokuhlola lesi sici futhi sezisungule eyazo imikhiqizo.
(1) Ukusebenzisa inhloko yokushisela i-swing Indlela yokushisela ingahlakaza ukuminyana kwamandla, ithuthukise ukufana kwezinga lokushisa lokushisela, futhi inciphise ukukhiqizwa kwe-spatter nama-pores ngezinga elithile.Njengamanje, abakhiqizi bekhanda le-laser abajwayelekile (abanjenge-Jiaqiang, i-Wanshunxing, i-Kirin, njll.) bethule amakhanda okushisela ama-laser afanayo.Kodwa ngesikhathi esifanayo, kukhona ezinye izithiyo.Njengoba ukuminyana kwamandla we-laser kuncishisiwe, amandla kufanele anyuswe noma ijubane lokushisela kufanele lehliswe.
(2) Sebenzisa inhloko yokushisela eyinhlanganisela yamaza amabili ukuze uhlanganise i-laser yefiber kanye ne-semiconductor laser nekhanda lokushisela eliyinhlanganisela yamaza amabili, futhi badlulelane endaweni yokushisela.I-fiber laser yenza i-welding yokungena ejulile.Nciphisa ukuchaphaza.Njengamanje, abakhiqizi bekhanda le-laser abanjengoJiaqiang noWanshunxing nabo bethule amakhanda anjalo okushisela.Kodwa-ke, le ndlela yokushisela idinga ukusetshenziswa kwama-lasers amabili, futhi inhlanganisela yemishini iyinkimbinkimbi kakhulu.
(3) Ilaser enendawo ekhethekile
Isixazululo esingcono kakhulu esingabizi kakhulu sisohlangothini lwe-laser, ukushintsha i-laser ye-Gaussian yokusabalalisa ukuze ikhale + ukukhanya okuphakathi, indawo yokukhanya emaphakathi iqinisekisa ukujula kwechibi elincibilikisiwe, futhi indawo yesibani esiyindandatho idlala indima yokushisisa kwangaphambili nokupholisa kancane, okuyinto iqhathaniswa nomgomo wokushisela oyinhlanganisela ye-dual-wavelength eshiwo ngenhla.ezifanayo.Abakhiqizi be-laser abajwayelekile bethule ama-laser afanayo, njengelaser ye-IPG's AMB kanye ne-Raycus' ABP laser.
Iyini i-FRM ye-GW Laser Tech
Ukusabela ebunzimeni bokushisela bezinto ezibonisa ukukhanya okuphezulu okukhulunywe ngenhla, i-GW Laser iye yahlola ngokuqhubekayo emgwaqeni wokuthuthukiswa kobuchwepheshe, futhi yethula uchwepheshe wokushisela obonisa ukukhanya okuphezulu - FRM (Flexible Ring Mode) dynamic spot output laser, okuyinto inganciphisa ngempumelelo inqubo ye-welding yezinto eziphezulu zokubonisa.Ukukhiqizwa kwe-Splash kanye ne-porosity.
Ilaser ye-FRM ihlanganisa amamojula amabili okukhanya abe ungqimba oluyinhloko kanye nongqimba oluwumgogodla lwendandatho yefayibha ngokusebenzisa i-coupler eyenziwe ngendlela oyifisayo, ihlanganisa imishayo ye-laser emibili ibe ugongolo olulodwa, bese ilugxilisa phezu kwendawo yokusebenza ukuze yakhe indawo eyinhlanganisela.Ngokulungisa isilinganiso esifanele samandla, ububanzi be-welding obubanzi kakhulu kanye ne-welding ephansi ye-seam ye-seam ratio ingakhiwa, engathuthukisa ngokuphumelelayo ukuzinza kwe-keyhole, futhi inganciphisa kakhulu i-spatter futhi inciphise ukuzwela kwe-stomatal.
Ilaser ye-FRM ingalawula ngokuzenzakalelayo amandla esibani se-fiber core kanye nesibani esiyingqikithi yeringi.Ingakhanyisa kuphela isibani esimaphakathi noma isibani esiyindandatho, noma zombili zingavulwa ngesikhathi esisodwa ukuze zakhe izindlela ezintathu zendawo ejwayelekile, indawo eyi-annular, kanye nendawo eyinhlanganisela;uma ivuliwe ngesikhathi esifanayo, ingakwazi I-core kanye ne-ring core ingenza amandla aphakathi nendawo abe mkhulu kunamandla ayingqikithi yeringi, noma amandla amaphakathi aphakathi angaba mancane kunamandla ayingqikithi yeringi, noma amandla amaphakathi alingana. emandleni ayingqikithi yeringi, futhi isamba samachashazi ayisihlanu ahlukene angashintshwa.
Ububanzi bendawo emaphakathi buncane futhi ukuminyana kwamandla kuphezulu.I-welding isekelwe kumodi ye-welding yokungena ejulile, ezokhiqiza i-keyhole futhi yakhe i-pool encibilikisiwe ene-aspect ratio enkulu.Kodwa-ke, inezidingo eziphakeme kugebe elihambisanayo, futhi inani elikhulu lomhwamuko wensimbi ocindezelayo likhishwa lapho imbobo kakhiye yakhiwe nge-welding yokungena ejulile, ethambekele ekuqhumeni nasekuqhumeni amaphuzu.Izinga lokushisa lechibi elincibilikisiwe liphezulu futhi ukugeleza kwangaphakathi kunobudlova, futhi ukuguquguquka kwechibi elincibilikile kusobala.
Ububanzi bendawo ye-annular bukhulu futhi ukuminyana kwamandla kuncane.I-welding isekelwe kwimodi yokushisa ukushisa, engakha ichibi elincibilikile elibanzi.Njengoba i-thermal conduction welding ingakhi imbobo eyisihluthulelo, izinga lokushisa lechibi elincibilikisiwe liphansi ngesikhathi senqubo yokushisela, futhi akukho ukuguquguquka okusobala kwechibi elincibilikisiwe.I-Spatter, i-weld iphansi futhi yinhle.Kodwa-ke, ngenxa yobuningi bamandla ahlakazekile, ukujula okukhulu kokungena akutholakali.
Ukuhlanganisa kokubili ndawonye, ngokulungisa isilinganiso esifanele samandla, kuyilapho indawo emaphakathi iqinisekisa ukujula kwechibi elincibilikisiwe, indawo eyi-annular yandisa ububanzi nobude bechibi elincibilikisiwe, ngakolunye uhlangothi, ithuthukisa ukuzinza kwembobo kakhiye futhi inciphisa. i-splashing Ngakolunye uhlangothi, ukugeleza kwechibi elincibilikisiwe kuzinzile, ama-bubbles aphuphuma isikhathi eside, futhi amathuba okwakheka kwe-porosity ayancipha.
Ilaser ye-FRM inganikeza amandla aphelele okukhipha afika ku-20KW, futhi ingalungisa kalula amapharamitha wokukhanya okukhiphayo.Ububanzi be-fiber yokukhipha i-beam emaphakathi ngu-50μm/150μm, futhi amandla okukhiphayo afika ku-10KW;ububanzi be-fiber ephumayo ye-ring 150μm/300μm, futhi amandla okukhiphayo afika ku-10KW.I-centre beam iyi-fiber laser enobude obungamaza angu-1070nm, futhi indandatho ingafakwa i-laser ye-semiconductor engu-976nm ngaphezu kwe-fibre laser engu-1070nm ukuze ibone ukuhlanganiswa kwemishayo ye-wavelength ekabili kanye ne-double-laser.
FRM omuhle welding umphumela
Ukuze ubonise umphumela wokushisela we-FRM, okulandelayo kusebenzisa i-laser ye-FRM nelaser evamile ukushisela ama-alloys e-aluminium futhi uwaqhathanise.
Ilaser engu-1.5KW+1.5KW (50μm+150μm) ye-FRM isetshenziselwe ukushisela ingxubevange ye-aluminium engu-6061 enogqinsi olungu-3mm, futhi uma iqhathaniswa nelaser evamile engu-3KW (100μm).Kungatholakala ngokucacile ukuthi i-spatter ye-FRM laser welding incane kakhulu kunaleyo ye-laser welding evamile.
Amasampula ashiselwe avulwa ukuze abukwe nge-metallographic.Ngenxa yomphumela wendawo enyakazayo, i-weld etholwe yilaser ye-FRM inomumo obanzi ophezulu naphansi owumngcingo, futhi izindawo ezingaphezulu neziphansi ngokuyisisekelo ziyisicaba;kuyilapho ububanzi bokushisela be-laser evamile yokushisela ngokuyisisekelo buguquguquka phezulu nangaphansi, futhi indawo engaphezulu idilikile futhi iphansi liyi-convex.
Amandla aqinile womthungo oshiselwe ngemva kokushisela ayahlolwa, futhi amandla aqinile we-FRM welding angcono kunalawo okushisela nge-laser evamile.
Izinhlelo zokusebenza ezibalulekile ze-FRM
I-China ithatha izimoto ezintsha zamandla njengenye yezimboni zayo eziyisikhombisa ezinamasu.Njengoba iphakethe lebhethri le-lithium lamandla liyingxenye eyinhloko yezimoto zamandla amasha, ngokuthuthukiswa okuqhubekayo kwezimoto zamandla amasha, liphinde lisetshenziswe kabanzi futhi lithuthukiswe ngokufanele.
Ngokwezibalo ze-China Research Institute yasePuhua, isidingo somhlaba wonke samabhethri e-lithium sizoqhubeka nokukhuphuka kusukela ngo-2017 kuya ku-2020, futhi isidingo semishini yebhethri ye-lithium sizoqhubeka sikhula eminyakeni engu-3-5 ezayo.Ukuthuthukiswa okusheshayo kwemboni yebhethri ye-lithium kuye kwabangela ukuthi izinkampani ezinkulu zandise ukwakhiwa kwamafektri amasha kanye nokwandiswa kwamandla okukhiqiza.
Ukuphepha kwephakethe lebhethri kubaluleke kakhulu.Uma kwenzeka ukwehluleka okufanele, kuzoholela emiphumeleni emibi kakhulu futhi kusabise izimpilo zabantu.Phakathi kwazo, isici esibamba iqhaza elibalulekile ekuphepheni kwezimoto zikagesi ukushiselwa kwezingxenye ezibalulekile zephakethe lebhethri lamandla.Izinto ezibaluleke kakhulu kulezi zikhundla yi-aluminium alloy, okuhlanganisa ama-valve angaqhumi, ama-cell seal, amathebhu, imigoqo yamabhasi, njll;kulandelwa izinto ze-Copper, njengezigxobo, amathebhu, njll. Ikhwalithi yokushisela yalezi zikhundla izothinta ngokuqondile ukuthembeka kwekhwalithi yephakethe lebhethri.
Ngokushiselwa kwezingxenye ezihlukene zebhethri lamandla, i-FRM laser esebenzisa i-Guanghui Laser ingaxazulula ngempumelelo inkinga yokushisela, ibone i-zero spatter ekushiseleni, akukho zimbotshana ezingaphezulu, ukungena okuzinzile, umthungo wokushisela obushelelezi futhi omuhle, ithuthukise kakhulu ikhwalithi yokushisela. , futhi uqinisekise ngempumelelo ukuzinza kwebhethri lamandla.Ucansi nokuphepha.
Ukuguqulwa kwemakethe yezimoto emhlabeni wonke iye ekufakweni kukagesi kuwumkhuba ojwayelekile, futhi ngaphansi kwalo mkhuba wokuthuthuka ojwayelekile, kuzomele kubeke phambili izidingo eziphakeme zobuchwepheshe bokushisela i-lithium-ion, futhi ukucutshungulwa kwebhethri ye-lithium-ion sekuphenduke imakethe ebalulekile yelaser yasekhaya. izinkampani.I-Guanghui Laser izoqhubeka nokwenza imizamo emkhakheni we-lithium battery welding.Ngokusungula izinto ezintsha ezizimele, kuzokwenziwa ukuthuthukiswa kwe-laser iterative ukuze kusizwe amakhasimende athuthukise izinqubo zokushisela futhi kuthuthukiswe ukuphepha komkhiqizo kanye nokuncintisana.
Umbhali:GW Laser application engineer Jiaxing Gu
Isikhathi sokuthumela: Feb-15-2022