Njengamanje, imishini yokushisela i-laser ephathwayo isetshenziswe kabanzi emkhakheni wokushisela insimbi. Emkhakheni wendabuko wokushisela, i-90% yensimbi yokushisela isithathelwe indawo yi-laser welding ngenxa yesivinini sokushisela i-laser ibe ngaphezu kokuphindwe kahlanu kwezindlela zokushisela zendabuko, futhi umphumela wokushisela ungaphezu kokushisela kwe-argon arc okujwayelekile kanye nokushisela okuvikelekile. Ukushisela nge-laser ekushiseleni kwezinsimbi ezingezona ayoni njengengxube ye-aluminium kunenzuzo yendlela yendabuko yokushisela. Vele, mayelana nezinto zokushisela zensimbi, imishini yokushisela i-laser ephathwayo nayo inezinyathelo ezithile zokuphepha.
Isinyathelo sokuqala ukuhlola ukuthi i-shutter reflector ihlanzekile, njengoba ama-lens angahlanzekile angonakaliswa ngesikhathi sokusetshenziswa, okuzogcina kuholele ekuhlulekeni okungenakulungiseka. Lapho i-laser isilungele ukuhamba ngemuva kokulungiswa kwayo ngokuphelele. Ngokuthuthuka kobuchwepheshe be-laser welding, ubuchwepheshe bokushisela i-laser obuphathwa ngesandla buyakhula futhi busetshenziswe emikhakheni eyahlukene yezimboni. Kodwa-ke, ohlelweni lokukhiqiza nokusetshenziswa kwansuku zonke, ngenxa yezizathu ezihlukahlukene, kusazoba nezinkinga ezithile. Ngakho-ke, ukulawula kanye nokuxazulula lezi zinkinga ezithinta ukusebenza kahle komsebenzi yinto ehamba phambili. Ngokuvamile, sinquma imbangela yenkinga ngokusebenzisa izenzakalo nokulawula okuguquguqukayo.
Ngokuvamile, kunezizathu ezimbili zokungasebenzi kahle:
1. Uma kunenkinga ngokucutshungulwa kwezinto, izinto ezingalungile kufanele zishintshwe ukuze kuzuzwe umphumela oyifunayo.
2. Ukuhlelwa kwemingcele yezobuchwepheshe kudinga ukuhlolwa okuqhubekayo kwezingxenye ezifanayo ngokusho komkhiqizo oshiselwe kanye nezingxoxo ezisekelwe emiphumeleni yokuhlolwa.
Ngaphezu kwalokho, ukushisela nge-laser kunezinzuzo eziningi ukushisela okungokwesiko okungenakuqhathaniswa:
1. Ukuphepha. Umbhobho wethoshi uzoqala ukusebenza kuphela uma uhlangana nensimbi, kunciphisa ubungozi bokungasebenzi kahle, futhi inkinobho yokuthinta yethoshi yokushisela ngokuvamile inomsebenzi wokuzwa izinga lokushisa, okuzoyeka ngokuzenzakalelayo ukusebenza lapho ishise kakhulu.
2. Noma iyiphi i-angle welding ingafezwa. Ukushisela nge-laser akusebenzi kahle kuma-welds avamile kuphela, kodwa futhi kunokuguquguquka okuphezulu kakhulu kanye nokusebenza kahle kokushisela kuma-welds ayinkimbinkimbi, ama-workpieces anevolumu enkulu, kanye nama-welds anomumo ongajwayelekile.
3. I-laser welding ingasiza ekugcineni indawo yokusebenza ehlanzekile efektri. I-laser welding ine-spatter encane kanye nomphumela wokushisela ozinzile, onganciphisa kakhulu ukungcola ngaphakathi kwefektri futhi uqinisekise indawo yokusebenza ehlanzekile.
Kodwa-ke, i-laser welding nayo inezidingo ezithile enqubweni yangempela yokufaka isicelo, njengokwamukela idizayini enobungane yemishini yokushisela i-laser, kanye nokwenza ngcono kanye nokwenza kahle inqubo yokukhiqiza insimbi yeshidi. I-laser welding nayo inezidingo eziphakeme kakhulu zokucubungula ukunemba kanye nekhwalithi yokulungisa. Uma ufuna ukunikeza ukudlala okugcwele izinzuzo ze-laser welding, ukunciphisa izindleko futhi uthuthukise ukusebenza kahle, kuyadingeka ukwandisa inqubo yokukhiqiza yeshidi lensimbi noma ezinye izinsimbi ekukhiqizeni kwangempela. Njengomklamo womkhiqizo, ukusika i-laser, ukugxiviza, ukugoba, ukushisela i-laser, njll., ukuthuthukisa indlela yokushisela ekushiseni nge-laser, kunganciphisa izindleko zokukhiqiza zefektri cishe ngama-30%, futhi ukushiswa kwe-laser sekube yisinqumo samabhizinisi amaningi.
Ubunzima be-aluminium alloy laser welding:
1. Ingxubevange ye-aluminium inezici zokungasindi, okungezona uzibuthe, ukumelana nezinga lokushisa eliphansi, ukumelana nokugqwala, ukubunjwa okulula, njll., ngakho-ke isetshenziswa kabanzi emkhakheni we-welding. Ukusebenzisa ingxubevange ye-aluminium esikhundleni sokushisela ipuleti lensimbi kunganciphisa isisindo sesakhiwo ngo-50%.
2. I-aluminium alloy welding kulula ukukhiqiza ama-pores.
3. I-linear expansion coefficient ye-aluminium alloy weld inkulu, okungenzeka ukuthi ibangele ukuwohloka ngesikhathi sokushisela.
4. Ukunwetshwa kwe-thermal kujwayele ukwenzeka ngesikhathi se-aluminium alloy welding, okuholela ekuqhekekeni okushisayo.
5. Izithiyo ezinkulu ekwandiseni nasekusetshenzisweni kwengxube ye-aluminium ukuthambisa okukhulu kwamalunga ashiselwe kanye ne-coefficient yamandla aphansi.
6. Ubuso be-aluminium alloy kulula ukwenza ifilimu ye-refractory oxide (iphuzu lokuncibilika le-A12O3 liyi-2060 °C), elidinga inqubo yokushisela amandla amakhulu.
7. I-aluminium alloy ine-conductivity ephezulu yokushisa (cishe izikhathi ezi-4 kunezinsimbi), futhi ngaphansi kwejubane elifanayo lokushisela, okokufaka ukushisa kuyizikhathi ezi-2 kuya kwezi-4 kunensimbi eshiselwe futhi. Ngakho-ke, i-aluminium alloy welding idinga ukuminyana kwamandla aphezulu, okokufaka okushisa okuphansi kwe-welding kanye nesivinini esikhulu sokushisela.
Isikhathi sokuthumela: Nov-10-2022
