Inkqubo kunye neskimu sokucinezelwa kwe-laser welding spatter formation

Inkcazo yesiphene sokutshiza: Ukutshiza kwiwelding kubhekiselele kumathontsi esinyithi atyhidiweyo akhutshiweyo kwidama elinyibilikisiweyo ngexesha lenkqubo yokuwelda.La mathontsi angawela kwindawo esebenza kuyo ejikelezileyo, abangele uburhabaxa kunye nokungalingani kumphezulu, kwaye anokubangela ilahleko yomgangatho wedama elinyibilikisiweyo, okukhokelela kwizibonda, iindawo eziqhushumbayo, kunye nezinye iziphene kumphezulu we-weld ezichaphazela iipropathi zomatshini ze-weld. .

Ukutshiza kwiwelding kubhekiselele kumathontsi esinyithi atyhidiweyo akhutshwa kwidama elinyibilikisiweyo ngexesha lenkqubo yokuwelda.La mathontsi angawela kwindawo esebenza kuyo ejikelezileyo, abangele uburhabaxa kunye nokungalingani kumphezulu, kwaye anokubangela ilahleko yomgangatho wedama elinyibilikisiweyo, okukhokelela kwizibonda, iindawo eziqhushumbayo, kunye nezinye iziphene kumphezulu we-weld ezichaphazela iipropathi zomatshini ze-weld. .

Ukuhlelwa kwesplash:

Ama-splashes amancinci: Amaconsi okuqinisa akhoyo emaphethelweni e-weld seam kunye nomgangatho wezinto eziphathekayo, ngokukodwa okuchaphazela ukubonakala kwaye akukho mpembelelo ekusebenzeni;Ngokuqhelekileyo, umda wokwahlula kukuba i-droplet ingaphantsi kwe-20% yobubanzi be-weld seam fusion;

I-splatter enkulu: Kukho ilahleko esemgangathweni, ebonakaliswe njengama-dents, amanqaku aqhumayo, ama-undercuts, njl njl kwi-surface ye-weld seam, engakhokelela ekugxininiseni okungalinganiyo kunye noxinzelelo, okuchaphazela ukusebenza kwe-weld seam.Eyona nto kugxilwe kuyo kwezi ntlobo zeziphene.

Inkqubo yokwenzeka kwesplash:

I-Splash ibonakala njengokutofwa kwesinyithi esinyibilikisiweyo kwidama elityhidiweyo kwicala eliphantse lilingane ne-welding liquid surface ngenxa yesantya esiphezulu.Oku kunokubonwa ngokucacileyo kumzobo ongezantsi, apho ikholomu ye-liquid iphuma kwi-welding melt kwaye idibanise ibe ngamaconsi, yenza i-splashes.

Indawo yokwenzeka kwe-splash

I-laser welding yahlulwe ibe yi-thermal conductivity kunye ne-welding enzulu yokungena.

I-Thermal conductivity welding iphantse ingenzeki i-spatter: i-Thermal conductivity welding ibandakanya ukuhanjiswa kobushushu ukusuka kumphezulu wezinto ukuya ngaphakathi, kunye phantse akukho sitshizi esiveliswayo ngexesha lenkqubo.Inkqubo ayibandakanyi ukuphuphuma kwesinyithi okunzima okanye ukusabela kwe-metallurgical ngokomzimba.

I-welding yokungena nzulu yeyona meko iphambili apho i-splashing isenzeka: i-welding yokungena enzulu ibandakanya ukufikelela ngokuthe ngqo kwizinto eziphathekayo, ukuhambisa ubushushu kwizinto eziphathekayo ngokusebenzisa imibhobho engundoqo, kwaye ukusabela kwenkqubo kunamandla, okwenza kube yimeko ephambili apho ukutshiza kwenzeka khona.

Njengoko kubonisiwe kulo mzobo ungasentla, abanye abaphengululi basebenzisa ukufota ngesantya esiphezulu zidityaniswe neglasi ebonisa ubushushu obuphezulu ukuze bajonge imeko yokushukuma komngxuma wesitshixo ngexesha lelaser welding.Kunokufunyanwa ukuba i-laser ibetha ngokusisiseko udonga lwangaphambili lomngxuma wesitshixo, ityhala ulwelo ukuba luqukuqelele ezantsi, ludlula umngxuma wesitshixo kwaye lufikelele kumsila wedama elinyibilikisiweyo.Isikhundla apho i-laser ifunyenwe ngaphakathi kwi-keyhole ayilungiswanga, kwaye i-laser ikwimeko yokufunxa i-Fresnel ngaphakathi kwe-keyhole.Ngapha koko, yimeko yokuphinda kuphindeke kunye nokufunxa, ukugcina ubukho bolwelo lwedama olunyibilikisiweyo.Isikhundla se-laser refraction ngexesha lenkqubo nganye itshintsha nge-angle yodonga lwesitshixo, okwenza ukuba i-keyhole ibe kwisimo sokunyakaza okujijayo.Isikhundla sokukhanya kwelaser siyanyibilika, sibe ngumphunga, sinyanzeliswe, kwaye sigqwethekile, ngoko ke ukungcangcazela kweperistaltic kuya phambili.

Uthelekiso olukhankanywe ngasentla lusebenzisa iglasi ebonisa ubushushu obuphezulu, eneneni ilingana nombono onqamlezileyo wedama elinyibilikisiweyo.Emva kwayo yonke loo nto, imeko yokuhamba kwechibi elityhidiweyo yahlukile kwimeko yokwenyani.Ngoko ke, abanye abaphengululi baye basebenzisa ubugcisa bokukhenkceza ngokukhawuleza.Ngethuba lenkqubo ye-welding, i-pool etyhidiweyo ifakwe ngokukhawuleza ukuze ifumane imo yangoko nangoko ngaphakathi kwi-key hole.Kuyabonakala ngokucacileyo ukuba i-laser ibetha udonga lwangaphambili lwembobo yesitshixo, yenza inyathelo.I-laser isebenza kule groove yenyathelo, ityhala idama elinyibilikisiweyo ukuba liqukuqelele libheke ezantsi, lizalise isithuba somngxuma wesitshixo ngexesha lentshukumo yelaser ukuya phambili, kwaye ngaloo ndlela ifumana umzobo oqikelelweyo wesalathiso sokuhamba ngaphakathi komngxuma wesitshixo wedama elinyibilikisiweyo lokwenyani.Njengoko kubonisiwe kumzobo ochanekileyo, uxinzelelo lwesinyithi oluphinda luphinde lubekho oluveliswa kukukhutshwa kwelaser yentsimbi engamanzi kuqhuba idama elinyibilikisiweyo ukuba lidlule eludongeni lwangaphambili.Umngxuma wesitshixo uya ngasemsileni wedama elityhidiweyo, unyukela phezulu njengomthombo osuka ngasemva kwaye uchaphazela umphezulu wedama elinyibilikayo lomsila.Kwangaxeshanye, ngenxa yokuxinana komphezulu (okusezantsi kobushushu bomphezulu woxinzelelo, kokukhona impembelelo enkulu), isinyithi elulwelo esikwidama elinyibilikisiweyo sitsalwa luxinzelelo lomphezulu ukuya emphethweni wedama elinyibilikisiweyo, liqina ngokuqhubekayo. .Ulwelo lwesinyithi olunokuthi luqiniswe kwixesha elizayo lujikeleza emva komsila we-key hole, njalo njalo.

I-Schematic diagram ye-laser keyhole i-welding enzulu yokungena: A: Ulwalathiso lwe-Welding;B: Umqa weLaser;C: Umngxuma wesitshixo;D: Umphunga wesinyithi, iplasma;E: Irhasi ekhuselayo;F: Umngxuma wesitshixo eludongeni lwangaphambili (ukusila kwangaphambi kokunyibilika);G: Ukuqukuqela okuthe tye kwemathiriyeli etyhidiweyo kwindlela yomngxuma wesitshixo;H: I-interface yokuqinisa ichibi elinyibilikayo;Mna: Indlela eya ezantsi yedama elinyibilikisiweyo.

Inkqubo yokusebenzisana phakathi kwe-laser kunye nezinto eziphathekayo: I-laser isebenza kumphezulu wezinto eziphathekayo, ivelisa ukuchithwa okukhulu.Izinto kuqala zifudunyezwa, zinyibilike, kwaye zibe ngumphunga.Ngexesha lenkqubo yokuphuma komphunga ngamandla, umphunga wesinyithi uhambela phezulu ukunika ichibi elinyibilikisiweyo ucinezelo lokubuyela ezantsi, okukhokelela kumngxuma wesitshixo.I-laser ingena kwi-keyhole kwaye ihamba ngeendlela ezininzi zokukhupha kunye neenkqubo zokufunxa, okubangelwa ukunikezelwa okuqhubekayo komphunga wensimbi ogcina i-keyhole;I-laser isebenza ikakhulu kudonga olungaphambili lomngxuma wesitshixo, kwaye ukuphuphuma komphunga kwenzeka ikakhulu kudonga olungaphambili lomngxuma wesitshixo.Uxinzelelo lwe-recoil lutyhala intsimbi engamanzi ukusuka kudonga olungaphambili lomngxuma wesitshixo ukuze ijikeleze umngxuma wesitshixo ukuya emsileni wedama elinyibilikisiweyo.Ulwelo oluhamba ngesantya esiphezulu lujikeleze umngxuma wesitshixo luyakuchaphazela ichibi elinyibilikisiweyo libheke phezulu, lenze amaza anyusiweyo.Emva koko, iqhutywa kukuxinana komphezulu, iya ngasemphethweni kwaye yomelela kumjikelezo onjalo.Ukutshiza kwenzeka ikakhulu kumda wokuvuleka komngxuma wesitshixo, kwaye intsimbi engamanzi kudonga olungaphambili iya kudlula ngesantya esiphezulu umngxuma wesitshixo kwaye ichaphazele indawo yodonga olungasemva lwedama elinyibilikisiweyo.