Zingaki izinhlobo ze-laser welding ozaziyo?

Izinzuzo kanye Nebubi Laser Welding of Aluminium Alloy

Lapho i-laser welding aluminium ingxubevange, njengokushiselwa kwepuleti lensimbi elashukumisa, kuzokhiqizwa ama-pores amaningi kanye nemifantu ngesikhathi senqubo yokushisela, okuzothinta ikhwalithi yokushisela.I-Aluminium element inamandla aphansi e-ionization, ukuzinza okungekuhle kwe-welding, futhi izobangela ukungaqhubeki kokushisela.Ngaphezu kwendlela yokushisa ephezulu yokushisa, i-aluminium oxide ne-aluminium nitride izokhiqizwa kuyo yonke inqubo, okubangela ukungcoliswa kwemvelo.

Nokho, i-aluminium ingxubevange plate surface kungenziwa ophucuziwe ngaphambi Welding ukwandisa ukumuncwa yayo laser energy;Igesi ye-inert izosetshenziswa ngesikhathi sokushisela ukuvimbela izimbobo zomoya.

I-laser arc hybrid welding ye-aluminium alloy ixazulule izinkinga zamandla we-laser welding, ukumuncwa kwe-laser beam ebusweni be-aluminium alloy kanye nenani lomngcele we-welding yokungena ejulile.Ingenye yezinqubo zokushisela i-aluminium alloy ezithembisayo kakhulu.Njengamanje, inqubo ayikavuthwa futhi isesigabeni socwaningo nokuhlola.

Ubunzima be-laser welding buhlukile kuma-alloys e-aluminium ahlukene.Ukwelashwa okungezona ukushisa kwaqinisa i-aluminium ne-aluminium ingxubevange engu-1000 uchungechunge, uchungechunge lwe-3000 nochungechunge lwe-5000 lunokushisela okuhle;Ingxubevange yochungechunge lwe-4000 inokuzwela kokuqhekeka okuphansi kakhulu;Ku-5000 series alloy, uma ω Nini (Mg)=2%, ingxubevange ikhiqiza imifantu.Ngokukhuphuka kokuqukethwe kwe-magnesium, ukusebenza kwe-welding kuyathuthukiswa, kodwa i-ductility kanye nokumelana nokugqwala kuba mpofu;2000 uchungechunge, 6000 uchungechunge kanye 7000 uchungechunge alloys anokuthambekela okukhulu kokuqhekeka okushisayo, ukwakheka okungekuhle kwe-weld, kanye nokuncipha okukhulu kokuqina kokuguga kwe-post weld.

Ngakho-ke, nge-laser welding ye-aluminium alloy, kuyadingeka ukuthatha izinyathelo ezifanele zenqubo futhi ukhethe ngendlela efanele izindlela zokushisela nezinqubo ukuze uthole imiphumela emihle yokushisela.Ngaphambi kokushisela, ukwelashwa kwendawo yezinto ezibonakalayo, ukulawula imingcele yenqubo yokushisela kanye noshintsho lwesakhiwo se-welding yizo zonke izindlela eziphumelelayo.

Ukukhethwa kwemingcele ye-welding

Amandla e-laser 3KW.

· Isivinini sokushisela i-laser: 4m/min.Isivinini se-welding sincike ku-energy density.Ukuphakama kwamandla amakhulu, isivinini sokushisela siyashesha.

· Uma ipuleti lifakwe uthayela (njengo-0.8mm wepuleti elingaphandle lodonga oluseceleni kanye no-0.75mm kucwecwe langaphandle lekhava eliphezulu), imvume yokuhlanganisa kulawulwa indawo ephakathi, ngokuvamile engu-0.05~0.20mm.Uma i-weld ingaphansi kuka-0.15 mm, umhwamuko we-zinc awukwazi ukususwa esikhaleni esiseceleni, kodwa ususwa endaweni ye-weld, okulula ukukhiqiza ukukhubazeka kwe-porosity;Lapho ububanzi be-weld bukhulu kuno-0.15 mm, insimbi encibilikisiwe ayikwazi ukugcwalisa ngokuphelele igebe, okuholela ekubeni namandla anganele.Lapho ubukhulu be-weld bufana nepuleti, izakhiwo zemishini zingcono kakhulu, futhi ububanzi be-weld buncike kububanzi bokugxila;Ukujula kwe-weld kuncike ku-energy density, isivinini sokushisela kanye nobubanzi bokugxila.

· Igesi evikelayo i-argon, ukugeleza kungu-25L/min, futhi ingcindezi yokusebenza ingu-0.15 ~ 0.20MPa.

· I-Focus diameter 0.6 mm.

· Indawo okugxilwe kuyo: uma ubukhulu bepuleti bungu-1mm, ukugxila kungaphezulu nje, futhi indawo yokugxila incike ekubunjweni kwekhoni.