Impembelelo yeGesi yoKhuselo kwi-Laser Welding
I-Laser Welder ephathwa ngesandla
Umxholo wesahluko:
▶ Unokukufunela Ntoni IGesi Efanelekileyo?
▶ Iindidi ezahlukeneyo zeGesi yoKhuselo
▶ Iindlela ezimbini zokusebenzisa igesi ekhuselayo
▶ Unokuyikhetha Njani Igesi Eyikhuselayo?
Ukuwelda kweLaser ngesandla
Isiphumo Esilungileyo seGesi yeShield eyiyo
Kwi-laser welding, ukhetho lwegesi yokukhusela lunokuba nempembelelo ebalulekileyo ekubunjweni, umgangatho, ubunzulu, kunye nobubanzi be-weld seam.Kwiimeko ezininzi, ukuqaliswa kwegesi yokukhusela kunefuthe elihle kwi-weld seam.Nangona kunjalo, kunokuba nemiphumo emibi.Iziphumo ezilungileyo zokusebenzisa igesi yokukhusela echanekileyo yile ilandelayo:
1. Ukhuseleko olusebenzayo lwe-weld pool
Ukwaziswa okufanelekileyo kwegesi ekhuselayo kunokukhusela ngokufanelekileyo i-weld pool kwi-oxidation okanye nokuthintela i-oxidation ngokupheleleyo.
2. Ukunciphisa ukutshiza
Ukwazisa ngokuchanekileyo igesi yokukhusela kunokunciphisa ngokufanelekileyo ukutshiza ngexesha lenkqubo ye-welding.
3. Ukubunjwa okufanayo kwe-weld seam
Ukuqaliswa ngokufanelekileyo kwegesi ekhuselayo kukhuthaza ukusasazeka kwe-weld pool ngexesha lokuqiniswa, okukhokelela kwi-uniform kunye ne-aesthetically pleading weld seam.
4. Ukunyuka kokusetyenziswa kwelaser
Ukwazisa ngokuchanekileyo irhasi ekhuselayo kunokunciphisa ngokufanelekileyo ifuthe lokukhusela lentsimbi yomphunga okanye amafu eplasma kwilaser, ngaloo ndlela kwandisa ukusebenza kwelaser.
5. Ukunciphisa i-weld porosity
Ukwazisa ngokuchanekileyo igesi ekhuselayo kunokunciphisa ngokufanelekileyo ukubunjwa kwe-gas pores kwi-weld seam.Ngokukhetha uhlobo olufanelekileyo lwegesi, isantya sokuhamba, kunye nendlela yokwazisa, iziphumo ezifanelekileyo zinokufumaneka.
Nangona kunjalo,
Ukusetyenziswa ngokungafanelekanga kwegesi yokukhusela kunokuba nemiphumo emibi kwi-welding.Iziphumo ezibi ziquka:
1. Ukuwohloka kwe-weld seam
Ukwaziswa okungafanelekanga kwegesi ekhuselayo kunokubangela umgangatho ombi we-weld weam.
2. Ukuqhekeka kunye nokunciphisa iimpawu zomatshini
Ukukhetha uhlobo olungalunganga lwegesi kunokukhokelela ekuqhekekeni komthungo we-weld kunye nokuncipha kokusebenza koomatshini.
3. Ukunyuka kwe-oxidation okanye ukuphazamiseka
Ukukhetha isantya sokuhamba kwegesi engalunganga, nokuba iphezulu kakhulu okanye iphantsi kakhulu, kunokukhokelela ekwandeni kwe-oxidation ye-weld seam.Kwakhona kunokubangela ukuphazamiseka okukhulu kwintsimbi etyhidiweyo, okubangela ukuwa okanye ukubunjwa okungalinganiyo kwe-weld seam.
4. Ukhuseleko olunganeleyo okanye impembelelo embi
Ukukhetha indlela yokungeniswa kwegesi engalunganga kunokukhokelela ekukhuselweni okunganeleyo kwe-weld seam okanye nokuba nefuthe elibi ekubunjweni kwe-weld seam.
5. Impembelelo kubunzulu be-weld
Ukuqaliswa kwegesi ekhuselayo kunokuba nefuthe elithile kubunzulu be-weld, ngokukodwa kwi-welding plate ebhityileyo, apho ithande ukunciphisa ubunzulu be-weld.
Ukuwelda kweLaser ngesandla
Iintlobo zeegesi eziKhuselayo
Iigesi ezisetyenziswa ngokuqhelekileyo kwi-laser welding yi-nitrogen (N2), i-argon (Ar), kunye ne-helium (He).Ezi gesi zineempawu ezahlukeneyo zomzimba kunye neekhemikhali, ezikhokelela kwiimpembelelo ezahlukeneyo kwi-weld seam.
1. Initrogen (N2)
I-N2 inamandla e-ionization aphakathi, aphezulu kuneAr kwaye aphantsi kunoYe.Ngaphantsi kwesenzo se-laser, i-ionize kwiqondo eliphakathi, ukunciphisa ngokufanelekileyo ukubunjwa kwamafu e-plasma kunye nokwandisa ukusetyenziswa kwe-laser.Nangona kunjalo, i-nitrogen inokusabela kwimichiza kunye ne-aluminium alloys kunye ne-carbon steel kumaqondo obushushu athile, yenze i-nitrides.Oku kunokunyusa i-brittleness kunye nokunciphisa ukuqina kwe-weld seam, echaphazela kakubi iimpawu zayo zomatshini.Ngoko ke, ukusetyenziswa kwe-nitrogen njengegesi ekhuselayo ye-aluminium alloys kunye ne-carbon steel welds ayikhuthazwa.Kwelinye icala, initrogen inokusabela ngentsimbi engatyiwayo, yenze i-nitrides eyomeleza amandla okudityaniswa kwe-weld.Ke ngoko, initrogen ingasetyenziswa njengerhasi ekhuselayo yokuwelda intsimbi engatyiwayo.
2. Irhasi yeArgon (Ar)
Irhasi yeArgon inawona mandla asezantsi e-ionization, okukhokelela kwinqanaba eliphezulu le-ionization phantsi kwesenzo se-laser.Oku kungathandekiyo ekulawuleni ukubunjwa kwamafu eplasma kwaye kunokuba nefuthe elithile ekusebenziseni ngokufanelekileyo iilaser.Nangona kunjalo, i-argon ine-reactivity ephantsi kakhulu kwaye ayinakwenzeka ukuba ingene kwi-chemical reactions kunye neentsimbi eziqhelekileyo.Ukongezelela, i-argon inexabiso elisebenzayo.Ngaphaya koko, ngenxa yokuxinana kwayo okuphezulu, i-argon izika ngaphezulu kwe-weld pool, inika ukhuseleko olungcono lwe-weld pool.Ngoko ke, inokusetyenziswa njengegesi eqhelekileyo yokukhusela.
3. Irhasi yeHelium (Yena)
Igesi yeHelium inamandla aphezulu e-ionization, ekhokelela kwiqondo eliphantsi kakhulu le-ionization phantsi kwesenzo se-laser.Ivumela ulawulo olungcono lokubunjwa kwamafu eplasma, kwaye i-lasers inokunxibelelana ngokufanelekileyo kunye neentsimbi.Ngaphezu koko, i-helium ine-reactivity ephantsi kakhulu kwaye ayikhawulezi ingene kwiikhemikhali ngesinyithi, iyenza ibe yirhasi egqwesileyo yokukhusela i-weld.Nangona kunjalo, ixabiso le-helium liphezulu, ngoko ke alisetyenziswa ngokubanzi kwimveliso yobuninzi beemveliso.Ngokuqhelekileyo isetyenziswa kuphando lwezenzululwazi okanye kwiimveliso eziphezulu zexabiso elongezelelweyo.
Ukuwelda kweLaser ngesandla
Iindlela zokwazisa ngeGesi yokuKhusela
Okwangoku, kukho iindlela ezimbini eziphambili zokwazisa igesi ekhuselayo: ukuvuthela ecaleni kwe-axis kunye ne-coaxial shielding gas, njengoko kubonisiwe kuMfanekiso 1 kunye noMfanekiso 2, ngokulandelanayo.
Umzobo 1: Irhasi yoKhuseleko lweGasi esecaleni kwi-Off-axis
Umzobo 2: Igesi yeCoaxial Shielding
Ukhetho phakathi kweendlela ezimbini zokuvuthela kuxhomekeke kwiingcamango ezahlukeneyo.Ngokubanzi, kuyacetyiswa ukuba kusetyenziswe indlela yokuvuthela ecaleni kwe-off-axis ukukhusela irhasi.
Ukuwelda kweLaser ngesandla
Imigaqo yokuKhetha iNdlela yokuQalisa iGesi yokuKhusela
Okokuqala, kubalulekile ukucacisa ukuba igama elithi "i-oxidation" ye-welds yintetho ye-colloquial.Ngokwethiyori, ibhekisa ekuwohlokeni komgangatho we-weld ngenxa yokusabela kweekhemikhali phakathi kwentsimbi ye-weld kunye nezinto ezinobungozi emoyeni, njengeoksijini, initrogen, kunye nehydrogen.
Ukuthintela i-weld oxidation kubandakanya ukunciphisa okanye ukuphepha ukudibanisa phakathi kwezi zixhobo ezinobungozi kunye nentsimbi ye-weld ephezulu.Lo mgangatho wobushushu obuphezulu awubandakanyi kuphela isinyithi esityhidiweyo sechibi kodwa kunye nexesha lonke ukusuka xa intsimbi ye-weld inyibilika de i-pool iqina kwaye ubushushu bayo buyancipha ngaphantsi komqobo othile.
Ngokomzekelo, kwi-welding ye-titanium alloys, xa izinga lokushisa lingaphezulu kwe-300 ° C, ukuxutywa kwe-hydrogen ngokukhawuleza kwenzeka;ngaphezu kwe-450 ° C, ukufunxa oksijini ngokukhawuleza kwenzeka;kwaye ngaphezu kwe-600 ° C, ukufunxa ngokukhawuleza kwenitrogen kwenzeka.Ngoko ke, ukukhuselwa okusebenzayo kuyadingeka kwi-titanium alloy weld ngexesha lesigaba xa liqina kwaye izinga lokushisa liyancipha ngaphantsi kwe-300 ° C ukukhusela i-oxidation.Ngokusekelwe kwinkcazo engentla, kuyacaca ukuba i-gas ekhuselayo evuthelweyo idinga ukubonelela ngokukhusela kungekhona kuphela kwi-weld pool ngexesha elifanelekileyo kodwa nakwindawo eqinisiweyo nje ye-weld.Ngenxa yoko, indlela yokuvuthela ecaleni kwe-off-axis eboniswe kuMzobo we-1 ngokuqhelekileyo ikhethwa ngenxa yokuba inika uluhlu olubanzi lokukhusela xa kuthelekiswa nendlela yokukhusela i-coaxial eboniswe kuMfanekiso 2, ngokukodwa kwingingqi eqinile nje ye-weld.Nangona kunjalo, kwiimveliso ezithile ezithile, ukhetho lwendlela kufuneka lwenziwe ngokusekelwe kwisakhiwo semveliso kunye nokucwangciswa ngokubambisana.
Ukuwelda kweLaser ngesandla
UKhetho Oluthe ngqo lweNdlela yokwazisa iGesi yokuKhusela
1. IWeld yomgca othe ngqo
Ukuba ubume be-weld yemveliso buthe tye, njengoko kubonisiwe kuMfanekiso 3, kwaye ulungelelwaniso oludibeneyo lubandakanya amalungu empundu, amalungu emilenze, i-welds ye-fillet, okanye i-welds ye-stack, indlela ekhethwayo yolu hlobo lwemveliso yindlela yokuvuthela ecaleni kwe-off-axis eboniswe Umfanekiso woku-1.
Umzobo 3: I-Weld yomgca ochanekileyo
2. Planar Enclosed Geometry Weld
Njengoko kuboniswe kwi-Figure 4, i-weld kulolu hlobo lwemveliso inemilo yeplani evaliweyo, njengesetyhula, i-polygonal, okanye i-multi-segment line shape.Ulungelelwaniso oludibeneyo lunokubandakanya i-butt joints, i-lap joints, okanye i-welds stack.Ngolu hlobo lwemveliso, indlela ekhethiweyo kukusebenzisa i-coaxial shielding gas eboniswe kuMfanekiso 2.
Umzobo 4: I-Planar Efakwe kwi-Geometry Weld
Ukukhethwa kwegesi ekhuselayo kwiplani yejometri evalelweyo ichaphazela ngokuthe ngqo umgangatho, ukusebenza kakuhle, kunye neendleko zemveliso ye-welding.Nangona kunjalo, ngenxa yokwahlukahlukana kwezixhobo ze-welding, ukukhethwa kwegesi ye-welding kunzima kwiinkqubo ze-welding zangempela.Ifuna ingqwalasela ebanzi yezixhobo ze-welding, iindlela ze-welding, izikhundla ze-welding, kunye nesiphumo esifunekayo se-welding.Ukukhethwa kwegesi ye-welding efanelekileyo kakhulu kunokumiselwa ngovavanyo lwe-welding ukufezekisa iziphumo ezilungileyo ze-welding.
Ukuwelda kweLaser ngesandla
Umboniso weVidiyo |Glance for Handheld Laser Welding
Ividiyo 1 - Yazi ngakumbi malunga ne-Handheld Laser Welder
Ividiyo2-I-Versatile Laser Welding kwiiMfuno ezahlukeneyo
Nayiphi na imibuzo malunga Handheld Laser Welding?
Ixesha lokuposa: May-19-2023