Bhalisela Imidiya Yethu Yezokuxhumana Ukuze Uthumele Ngokushesha
I-Wave Laser eqhubekayo
I-CW, isifinyezo esithi "Igagasi Eliqhubekayo," ibhekisela kumasistimu e-laser akwazi ukuhlinzeka ngokuphuma kwe-laser okungaphazamiseki phakathi nokusebenza. Ebonakala ngekhono lawo lokukhipha i-laser ngokuqhubekayo kuze kube yilapho umsebenzi uyaphela, ama-laser e-CW ahlukaniswa ngamandla awo aphezulu aphansi namandla amaphakathi aphezulu uma kuqhathaniswa nezinye izinhlobo zamalaser.
Izicelo Ezibanzi
Ngenxa yesici sawo esiqhubekayo sokukhipha, ama-laser e-CW athola ukusetshenziswa okubanzi emikhakheni efana nokusika insimbi nokushisela ithusi ne-aluminium, okuwenza abe phakathi kwezinhlobo zama-lasers ezivame kakhulu nezisetshenziswa kabanzi. Ikhono labo lokuletha amandla angaguquki futhi angaguquki liwenza abe yigugu kukho kokubili ukucubungula okunembayo kanye nezimo zokukhiqiza ngobuningi.
Amapharamitha wokulungisa inqubo
Ukulungisa i-laser ye-CW ukuze kusebenze kahle inqubo kuhlanganisa ukugxila kumapharamitha angukhiye ambalwa, okuhlanganisa i-waveform yamandla, inani le-defocus, ububanzi bendawo ye-beam, nesivinini sokucubungula. Ukucushwa okunembayo kwale mingcele kubalulekile ukuze kuzuzwe imiphumela engcono kakhulu yokucubungula, ukuqinisekisa ukusebenza kahle kanye nekhwalithi ekusebenzeni kwemishini ye-laser.
I-Continuous Laser Energy Diagram
Izimpawu Zokusabalalisa Amandla
Isibaluli esiphawulekayo samalaser e-CW ukusatshalaliswa kwawo kwamandla e-Gaussian, lapho ukusatshalaliswa kwamandla kwengxenye enqamulayo ye-laser kuncipha kusukela phakathi kuya ngaphandle ngephethini ye-Gaussian (yokusabalalisa okuvamile). Lesi sici sokusabalalisa sivumela ama-laser e-CW ukuthi afinyelele ukunemba okugxile kakhulu nokusebenza kahle kokucubungula, ikakhulukazi ezinhlelweni ezidinga ukuthunyelwa kwamandla agxilile.
I-CW Laser Energy Distribution Diagram
Izinzuzo ze-Continuous Wave (CW) Laser Welding
I-Microstructural Perspective
Ukuhlola i-microstructure yezinsimbi kuveza izinzuzo ezihlukile ze-laser welding ye-Continuous Wave (CW) phezu kwe-Quasi-Continuous Wave (QCW) pulse welding. I-QCW pulse welding, evinjelwa umkhawulo wayo wefrikhwensi, ngokuvamile ezungeze u-500Hz, ibhekene nokuhwebelana phakathi kwezinga lokugqagqana nokujula kokungena. Izinga lokugqagqana eliphansi liholela ekujuleni okunganele, kuyilapho izinga lokugqagqana eliphezulu likhawulela isivinini sokushisela, lehlisa ukusebenza kahle. Ngokuphambene, i-laser welding ye-CW, ngokukhethwa kwamadayimitha abalulekile we-laser namakhanda okushisela, ifinyelela ukushisela okuphumelelayo nokuqhubekayo. Le ndlela ifakazela ukwethembeka ikakhulukazi ezinhlelweni ezidinga ubuqotho bophawu oluphezulu.
Ukucatshangelwa komthelela oshisayo
Ngokombono womthelela oshisayo, i-QCW pulse laser welding inenkinga yokunqwabelana, okuholela ekushiseni okuphindaphindiwe kwe-weld seam. Lokhu kungethula ukungqubuzana phakathi kwe-microstructure yensimbi nokokusebenza komzali, okuhlanganisa ukuhluka kosayizi wokugudluza namazinga okupholisa, ngaleyo ndlela kwandise ingozi yokuqhekeka. Ngakolunye uhlangothi, i-CW laser welding, igwema le nkinga ngokunikeza inqubo yokushisa efanayo neqhubekayo.
Ukulula Ukulungisa
Mayelana nokusebenza nokulungiswa, ukushiswa kwe-laser ye-QCW kudinga ukucutshungulwa ngokucophelela kwemingcele eminingana, okuhlanganisa imvamisa yokuphindaphinda ukushaya kwenhliziyo, amandla aphezulu, ububanzi be-pulse, umjikelezo womsebenzi, nokuningi. I-CW laser welding yenza inqubo yokulungisa ibe lula, igxile kakhulu ku-waveform, isivinini, amandla, kanye nenani le-defocus, okwenza kube lula kakhulu ubunzima bokusebenza.
Inqubekelaphambili Yezobuchwepheshe ku-CW Laser Welding
Nakuba i-QCW laser welding yaziwa ngamandla ayo aphakeme aphezulu kanye nokokufaka okushisayo okuphansi, kunenzuzo ekushiseni izingxenye ezizwela ukushisa nezinto ezinodonga oluncane kakhulu, intuthuko kubuchwepheshe bokushisela be-CW laser, ikakhulukazi ekusetshenzisweni kwamandla aphezulu (imvamisa engaphezu kwama-watts angu-500) kanye I-welding yokungena ejulile esekelwe kumphumela we-keyhole, ikhulise kakhulu uhla lwayo lokusebenza nokusebenza kahle. Lolu hlobo lwe-laser lufaneleka ngokukhethekile izinto eziwugqinsi kuno-1mm, lufinyelela izilinganiso zezici eziphezulu (ngaphezu kuka-8:1) naphezu kokufaka kokushisa okuphezulu.
I-Quasi-Continuous Wave (QCW) Laser Welding
Ukusabalalisa Amandla Okugxilile
I-QCW, emele "i-Quasi-Continuous Wave," imele ubuchwepheshe be-laser lapho i-laser ikhipha ukukhanya ngendlela engaqhubeki, njengoba kuboniswe kumfanekiso a. Ngokungafani nokusatshalaliswa kwamandla okufanayo kwama-lasers emodi eyodwa eqhubekayo, amalaser e-QCW agxilisa amandla awo ngokuminyene kakhulu. Lesi sici sinikeza amalaser e-QCW ukuminyana kwamandla aphezulu, okuhumushela emandleni okungena anamandla. Umphumela we-metallurgical umphumela ufana nokuma "kwezinzipho" ezinesilinganiso esibalulekile sokujula kobubanzi, okuvumela amalaza e-QCW ukuthi aphumelele ezinhlelweni ezibandakanya ama-alloys abonisa ukukhanya okuphezulu, izinto ezizwela ukushisa, kanye nokushisela okuncane okunembayo.
Ukuzinza Okuthuthukisiwe kanye Nokuphazamiseka Kwe-Plume Eyehlisiwe
Enye yezinzuzo ezishiwo ze-QCW laser welding amandla ayo okunciphisa imiphumela ye-plum yensimbi ngezinga lokumunca le nto, okuholela kunqubo ezinzile. Ngesikhathi sokusebenzelana kwe-laser-material, ukuhwamuka okunamandla kungakha ingxube yomhwamuko wensimbi ne-plasma ngaphezu kwechibi elincibilikayo, elivame ukubizwa ngokuthi i-plum yensimbi. Le nsimbi ingavikela ubuso bezinto ku-laser, ibangele ukulethwa kwamandla okungazinzile kanye nokukhubazeka okufana ne-spatter, izindawo zokuqhuma, nemigodi. Kodwa-ke, ukuphuma ngezikhathi ezithile kwama-laser e-QCW (isb., ukuqhuma okungu-5ms okulandelwa ukumiswa okungu-10ms) kuqinisekisa ukuthi i-laser pulse ngayinye ifinyelela endaweni ebonakalayo ingathinteki ngamapulangwe ensimbi, okuholela enqubweni yokushisela ezinzile, ezuzisa kakhulu ekushiseleni amashidi amancane.
I-Stable Melt Pool Dynamics
I-dynamics ye-melt pool, ikakhulukazi mayelana namandla asebenza emgodini wokhiye, ibalulekile ekunqumeni ikhwalithi ye-weld. Amalaser aqhubekayo, ngenxa yokuchayeka kwawo isikhathi eside kanye nezindawo ezinkulu ezithinteke ekushiseni, avame ukudala amachibi amakhulu okuncibilika agcwaliswe ngensimbi ewuketshezi. Lokhu kungaholela ekulimaleni okuhambisana namachibi amakhulu ancibilikayo, njengokuwa kwezimbobo zokhiye. Ngokuphambene, amandla agxilile kanye nesikhathi esifushane sokusebenzisana se-QCW laser welding sigxila echibini lokuncibilika eduze kwembobo kakhiye, okuholela ekusabalaliseni kwamandla afanayo kanye nesigameko esiphansi se-porosity, ukuqhekeka, kanye ne-spatter.
Indawo Ethinteke Kancane Ukushisa (HAZ)
I-laser welding eqhubekayo ibeka izinto ezisetshenziswayo ekushiseni okuqhubekayo, okuholela ekuqhubekiseni okubalulekile kokushisayo kwento. Lokhu kungabangela ukuguquka kokushisa okungafuneki kanye nokukhubazeka okubangelwa ukucindezeleka ezintweni ezincane. Amalaser e-QCW, ngokusebenza kwawo kwezikhawu, avumela isikhathi sokupholisa, ngaleyo ndlela anciphise indawo ethinteke ukushisa kanye nokokufaka okushisayo. Lokhu kwenza i-QCW laser welding ifaneleke ikakhulukazi izinto ezincane kanye nalezo eziseduze nezingxenye ezizwela ukushisa.
Amandla Aphakeme Aphakeme
Naphezu kokuba namandla afanayo amaphakathi njengama-lasers aqhubekayo, ama-laser e-QCW afinyelela amandla aphezulu aphezulu kanye nokuminyana kwamandla, okuholela ekungeneni okujulile namandla okushisela aqinile. Le nzuzo ibonakala ikakhulukazi ekushiseleni amashidi amancane ethusi ne-aluminium alloys. Ngokuphambene, ama-laser aqhubekayo anamandla amaphakathi afanayo angase ahluleke ukwenza uphawu endaweni ebonakalayo ngenxa yokuncipha kokuminyana kwamandla, okuholela ekuboniseni. Ama-laser anamandla amakhulu aqhubekayo, kuyilapho ekwazi ukuncibilikisa i-material, angathola ukwenyuka okubukhali kwezinga lokumunca ngemva kokuncibilika, okubangela ukujula okungalawuleki kokuncibilika kanye nokokufaka okushisayo, okungafaneleki ukushiselwa kweshidi elincane futhi kungase kubangele noma kungaphawulwa noma kushiswe. -ngokusebenzisa, ukwehluleka ukuhlangabezana nezidingo zenqubo.
Ukuqhathaniswa kwemiphumela yokushisela phakathi kwe-CW ne-QCW lasers
a. I-Laser ye-Wave Eqhubekayo (CW):
- Ukubukeka kwesipikili esivalwe nge-laser
- Ukubukeka kwe-weld seam eqondile
- Umdwebo wohlelo lokukhishwa kwe-laser
- I-cross-section ye-longitudinal
b. I-Quasi-Continuous Wave (QCW) Laser:
- Ukubukeka kwesipikili esivalwe nge-laser
- Ukubukeka kwe-weld seam eqondile
- Umdwebo wohlelo lokukhishwa kwe-laser
- I-cross-section ye-longitudinal
- * Umthombo: I-athikili ka-Wildong, nge-akhawunti yomphakathi ye-WeChat i-LaserLWM.
- * Isixhumanisi sesihloko sokuqala: https://mp.weixin.qq.com/s/8uCC5jARz3dcgP4zusu-FA.
- Okuqukethwe kwalesi sihloko kuhlinzekelwe izinjongo zokufunda nokuxhumana kuphela, futhi wonke amalungelo okukopisha angowombhali wokuqala. Uma kubandakanyeka ukwephulwa kwe-copyright, sicela uthinte ukuze ukususe.
I-QCW Laser evela ku-Lumispot Tech:
CW laser:
Isikhathi sokuthumela: Mar-05-2024