I-Handheld Laser Welder |

Kuyini i-laser welding? I-Laser Welding ichaziwe! Konke odinga ukukwazi mayelana Laser Welding, kuhlanganise ukhiye isimiso kanye main inqubo nemingcele!

Amakhasimende amaningi awaqondi izimiso eziyisisekelo zokusebenza zomshini wokushisela we-laser, ingasaphathwa eyokukhetha umshini wokushisela we-laser ofanele, nokho i-Mimowork Laser ilapha ukuze ikusize wenze isinqumo esifanele futhi ikunikeze ukwesekwa okwengeziwe ukukusiza ekuqondeni ukushisela kwe-laser.

Iyini i-Laser Welding?

I-laser welding iwuhlobo lokuncibilika kwe-welding, kusetshenziswa ugongolo lwe-laser njengomthombo wokushisa we-welding, umgomo wokushisela usebenzisa indlela ethile yokuvuselela i-medium esebenzayo, ukwakha i-resonant cavity oscillation, bese uguqulela ugongolo lwemisebe evuselelwe, lapho ugongolo. futhi umsebenzi uthintana nomunye, amandla amuncwa ucezu lomsebenzi, lapho izinga lokushisa lifinyelela iphuzu lokuncibilika le nto kungenziwa ashiselwe.

Ngokomshini oyinhloko we-welding pool, i-laser welding inezindlela ezimbili eziyisisekelo zokushisela: i-heat conduction welding kanye ne-deep penetration (keyhole) welding. Ukushisa okukhiqizwa ukushisa kwe-welding ye-heat conduction kusakazwa emsebenzini ngokudluliswa kokushisa, ukuze indawo ye-weld incibilike, akukho ukuhwamuka okufanele kwenzeke, okuvame ukusetshenziswa ekushiseni kwezingxenye ezinesivinini esincane esincane. I-Deep fusion welding ishisa impahla futhi yakhe inani elikhulu le-plasma. Ngenxa yokushisa okuphakeme, kuzoba nezimbobo ngaphambili kwechibi elincibilikisiwe. I-deep penetration welding iyindlela ye-laser welding esetshenziswa kakhulu, ingashisela ucezu lomsebenzi kahle, futhi amandla okokufaka makhulu, okuholela esivinini sokushisela.

Amapharamitha wokucubungula ku-Laser Welding

Kunamapharamitha wenqubo amaningi athinta ikhwalithi ye-laser welding, njengokuqina kwamandla, i-laser pulse waveform, i-defocusing, isivinini sokushisela kanye nokukhetha kwegesi eliyisivikelo elisizayo.

Laser Power Density

Ukuminyana kwamandla kungenye yemingcele ebaluleke kakhulu ekucutshungulweni kwe-laser. Ngobuningi bamandla obuphezulu, isendlalelo esingaphezulu singashiswa sifike endaweni ebilayo ngaphakathi kwe-microsecond, okuholela enanini elikhulu lokuhwamuka. Ngakho-ke, ukuminyana kwamandla aphezulu kunenzuzo ezinqubweni zokususa izinto ezifana nokubhola, ukusika nokuqopha. Ngobuningi bamandla aphansi, kuthatha ama-millisecond ambalwa ukuze izinga lokushisa elingaphezulu lifinyelele endaweni yokubilisa, futhi ngaphambi kokuba ubuso buhwamuke, okuphansi kufinyelela endaweni yokuncibilika, okulula ukwenza i-weld encibilikayo enhle. Ngakho-ke, ngesimo sokushisa kwe-laser welding, ububanzi bokuminyana kwamandla yi-104-106W/cm2.

I-Laser Pulse Waveform

I-Laser pulse waveform ayiyona nje ipharamitha ebalulekile yokuhlukanisa ukususwa kwezinto ezibonakalayo ekuncibilikeni kwezinto, kodwa futhi iyipharamitha eyinhloko yokunquma ivolumu nezindleko zemishini yokucubungula. Lapho ugongolo lwe-laser olunamandla kakhulu ludutshulwa ebusweni bento, ingaphezulu lezinto ezibonakalayo lizoba nama-60 ~ 90% wamandla e-laser abonakale futhi abhekwe njengokulahlekelwa, ikakhulukazi igolide, isiliva, ithusi, i-aluminium, i-titanium nezinye izinto ukubonakaliswa okuqinile nokudluliswa kokushisa okusheshayo. Ukubonakaliswa kwensimbi kuyahlukahluka ngokuhamba kwesikhathi phakathi ne-laser pulse. Lapho izinga lokushisa elingaphezulu lezinto likhuphuka lifika endaweni yokuncibilika, ukubonakaliswa kuncipha ngokushesha, futhi lapho indawo engaphezulu isesimweni sokuncibilika, ukubonakaliswa kuzinza ngenani elithile.

I-Laser Pulse Width

Ububanzi be-Pulse buyipharamitha ebalulekile ye-pulsed laser welding. Ububanzi be-pulse bunqunywe ukujula kokungena kanye nendawo ethintekile ukushisa. Uma ubude be-pulse bubude, indawo ethintekile yokushisa yayinkulu, futhi ukujula kokungena kwanda ngamandla angu-1/2 wobubanzi be-pulse. Kodwa-ke, ukwanda kobubanzi be-pulse kuzonciphisa amandla aphezulu, ngakho-ke ukwanda kobubanzi be-pulse ngokuvamile kusetshenziselwa ukushisa kwe-welding, okuholela kusayizi weld weld obanzi futhi ongajulile, ofaneleka ngokukhethekile ukushisela i-lap yamapuleti amancane nawugqinsi. Kodwa-ke, amandla aphakeme aphansi aholela ekufakweni kokushisa okweqile, futhi into ngayinye inobubanzi obulungile be-pulse okwandisa ukujula kokungena.

Ubuningi be-Defocus

Ukushisela nge-laser ngokuvamile kudinga inani elithile lokungagxili, ngoba ukuminyana kwamandla esikhungweni sendawo lapho kugxilwe khona nge-laser kuphezulu kakhulu, okulula ukuhwamulisa okokushisela kube izimbobo. Ukusatshalaliswa kokuqina kwamandla kufana ngokuqhathaniswa endizeni ngayinye kude nalapho kugxilwe khona nge-laser.

Kunezindlela ezimbili ze-defocus:
Ukungagxili okuhle nokubi. Uma indiza egxilile itholakala ngaphezu kwendawo yokusebenza, i-defocus enhle; uma kungenjalo, i-negative defocus. Ngokusho kwe-geometric optics theory, lapho ibanga eliphakathi kwezindiza ezinhle nezimbi ezisusa ukugxila kanye nendiza yokushisela ilingana, ukuminyana kwamandla endizeni ehambisanayo kucishe kufane, kodwa empeleni, ukubunjwa kwechibi elincibilikisiwe kuhlukile. Endabeni ye-defocus engalungile, ukungena okukhulu kungatholakala, okuhlobene nenqubo yokwakheka kwechibi elincibilikisiwe.

Isivinini sokushisela

Isivinini sokushisela sinquma ikhwalithi yendawo yokushisela, ukujula kokungena, indawo ethintekile ukushisa nokunye. Isivinini sokushisela sizothinta okokufaka kokushisa ngesikhathi seyunithi ngayinye. Uma isivinini sokushisela sihamba kancane, okokufaka kokushisa kuphezulu kakhulu, okuholela ekutheni ucezu lokusebenza luvutha. Uma ijubane lokushisela lishesha kakhulu, okokufaka kokushisa kuncane kakhulu, okuholela ekushiseleni kwe-workpiece ingxenye futhi ingaqediwe. Ukunciphisa isivinini se-welding ngokuvamile kusetshenziselwa ukuthuthukisa ukungena.

Igesi Yokuvikela I-Blow Esizayo

Igesi yokuvikela igalelo elisizayo iyinqubo ebalulekile kumandla aphezulu we-laser welding. Ngakolunye uhlangothi, ukuvimbela izinto zensimbi ukuthi zingafafazi futhi zingcolise isibuko esigxilisa ingqondo; Ngakolunye uhlangothi, ukuvimbela i-plasma ekhiqizwa inqubo yokushisela ukuthi ingagxili kakhulu futhi ivimbele i-laser ukuthi ingafinyeleli ebusweni bezinto ezibonakalayo. Enqubweni ye-laser welding, i-helium, i-argon, i-nitrogen namanye amagesi avame ukusetshenziselwa ukuvikela ichibi elincibilikisiwe, ukuze kuvinjwe i-workpiece kusuka ku-oxidation kubunjiniyela bokushisela. Izinto ezifana nohlobo lwegesi elivikelayo, ubukhulu bokugeleza komoya kanye ne-Angle evuthelayo kunomthelela omkhulu emiphumeleni yokushisela, nezindlela ezihlukene zokuphefumula nazo zizoba nomthelela othile kwikhwalithi yokushisela.

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