I-Laser cladding, ekwabizwa ngokuba yi-laser overlay welding, isetyenziselwa ukwenza ukwambathisa izinto ezahlukeneyo. Itekhnoloji ethe yafumana ukuthandwa kule minyaka idlulileyo iza neenzuzo ezahlukeneyo. Inceda ukukhusela izinto kwi-oxidation kunye ne-corrosion. Ukusebenzisa itekhnoloji yokugquma i-laser kuphucula iipropathi zomphezulu jikelele.
Eli nqaku liza kuhamba ngayo yonke into oyifunayo ukuyazi malunga ne-laser cladding.
Isiqulatho
Yintoni i-laser cladding?
Inkqubo yokufakwa kweLaser
Iinzuzo zokugquma kwelaser
Iimpawu ze-laser cladding
Ngaba ukugquma ngelaser kuyabiza?
Izinto ezintsha zamva nje kwi-laser cladding
isiphelo
Yintoni i-laser cladding?

Ukufakwa kweLaser yinkqubo eyongeziweyo kwimveliso enikezela ngokugquma kwiintlobo ngeentlobo zemigangatho yezinto. Ngokubanzi, iphucula iipropati zomhlaba, ezikhusela izinto ezivela kwi-oxidation kunye nokubola. Inkqubo ibandakanya ichibi lokunyibilika linqunyulwa kumphezulu wemathiriyeli esisiseko. Ngexesha elifanayo, i-powder okanye i-wire feedstock isetyenzisiweyo, eyenza umgca omncinci wengubo.
I-laser-induced cladding inikeza iingubo ezisasazwa ngokulinganayo. Ngokuphindaphinda okuphezulu, iileya zikhululekile ekuqhekekeni kunye ne-porosity. Zikwabonisa ukuncamathela okulungileyo, uburhabaxa obuphantsi bomgangatho, ukuhlambuluka okuphantsi, kunye nenkcitho encinci yezinto ezibandakanyekayo. Inkqubo inokuphuculwa ngokuhlengahlengisa ukuxinana, isantya sokuhamba, kunye nobubanzi bemitha yelaser kumphezulu wento.
Inkqubo yokufakwa kweLaser

Inkqubo yi-directed energy deposition (DED), kwaye ikwabizwa ngokuba yi-laser overlay welding. Xa isetyenziswe kwimveliso eyongezelelweyo, ibizwa ngokuba yi-laser metal deposition (LMD) okanye i-laser metal deposition (DLMD).
I-laser beam iyanyibilika kwaye ibophe i-alloys zetsimbi kwindawo engaphantsi komhlaba okanye umaleko ofakwe ngaphambili. Umaleko oshinyeneyo we-laser cladding umaleko ubotshelelwe ngesinyithi phantsi kodilution oluncinci olusuka kwizinto zentsimbi. Igalelo lokushisa kufuneka libe lanele ukuvelisa ukugqithiswa komgangatho ophezulu.
Apha ngezantsi kukho iinkqubo ezahlukeneyo zokuvala i-laser:
Inyathelo elinye laser cladding
Kwinkqubo yenyathelo elinye, izinto zokugquma zingeniswa kwichibi elinyibilikayo apho litshintsha libe yimo etyhidiweyo ngaphezulu komphezulu we-substrate. Xa umqa welaser oshukumayo ushiya isithuba, into etyhidiweyo yokwambathisa iyaqina. Ngenxa yoko, i-coating ecolekileyo yenziwa yimizila edibeneyo yokunyakaza kwe-laser.
Inyathelo ezimbini zokuvala i-laser
Ukucutshungulwa kwamanyathelo amabini kubandakanya ukubekwa kokuqala kwezinto zokugquma phezu kwe-substrate surface. Emva koko, unyango lomphezulu luthatha i-laser beam ehambayo ukunyibilikisa izinto zokugquma kunye ne-substrate kunye. Ukwaleka kuqina ngokuzenzekelayo nje ukuba i-laser beam ishiya indawo yokwaleka.
Ukugquma ucingo
Ngexesha lenkqubo yokugquma ucingo, i wire iyondliwa ngokuthe ngqo ukusuka kwi-spool ukuya kwitotshi ecinyiweyo. Ithi ke ifudunyezwe ngaphantsi kweqondo lobushushu lokunyibilika apho ukugquma kwenzeka ngocingo olukhokelayo.
Le nkqubo inenzuzo ngenxa yokusebenza kakuhle kwe-100% ekusebenziseni izinto zokuzalisa. Kwakhona yinkqubo ecocekileyo eneendlela ezahlukeneyo zokukhethwa kwezinto zocingo. Nangona kunjalo, ukufunxa ngemitha kwiingcingo kunika imveliso engahambelaniyo.
Ukugquma umgubo

Kwi-powder cladding, i powder igqithiselwa ukusuka kwidiski ejikelezayo ukuya kumbhobho wesondlo. Igqithiswa ngeegesi ze-carrier carrier, umzekelo, i-Argon okanye i-Helium, apho umgaqo wokufunxa usetyenziswa. I-particle powder iphoqeleka ukuba ikhutshwe yi-carrier carriers ngesantya esiphezulu.
Oku kubangela ukugquma okokugqibela okulinganayo kwaye kuphindaphindeke. Inkqubo ineendlela ezahlukeneyo zokutyisa kunye nemathiriyeli. Ikwayindlela engcono yokuseta i-3D.
Iinzuzo zokugquma kwelaser
I-Lasers lukhetho olukhethiweyo lwe-micromachining kunye nokulungiswa kwezinto. Ngaphantsi kwe-laser cladding, usebenzisa iiparamitha ezinje ngokuphindaphinda i-pulse frequency, amandla e-laser, ubude be-wavelength, kunye neendidi ezahlukeneyo zeeprofayili zemiqadi.
Oku kulandelayo luncedo olubalelwa kwi-laser cladding:
- Iqinisekisa i-metallurgical bonding of surfaces kunye nezixhobo ezisisiseko
- Inkqubo idinga ixesha eliphantsi lokuvezwa kunye nobunzulu be-laser beam
- I-Laser cladding ivelisa ukugquma okuxhathisayo xa kuthelekiswa neengubo zokutshiza ezishushu
- Umgangatho ophezulu ophezulu ophunyeziweyo kunye ne-warpage ephantsi inciphisa imfuno yokulungiswa emva kokulungiswa
- Isebenza kakuhle kakhulu ngenxa yeendleko ezincitshisiweyo, ixesha elifutshane lokuvala i-laser, kunye nenkcitho encinci
Iimpawu ze-laser cladding
Ukufakwa kweLaser ikakhulu isebenzisa impembelelo yobushushu obuphantsi kunye neempawu ezichanekileyo ezichanekileyo. Ikwanazo nezinye iimpawu, eziquka:
- Isantya sokupholisa ngokukhawuleza ngenxa yenkqubo yokuqinisa ngokukhawuleza; izinga linyuka ukuya malunga ne-106 K / s. Kulula ukufumana i-crystalline ecolekileyo yokwaleka ngokulinganayo.
- Ifuna igalelo elincinci lobushushu kunye nokugqwetheka xa uxinaniso lwamandla aphezulu lusetyenziswa ngokukhawuleza. Ukugqwethwa kungancitshiswa ngaphakathi kokunyamezela kwendibano.
- Izinga lokuncibilika kokutyabeka okuphantsi okukholisa ukuba ngaphantsi kwe-5%. Ngokuhlengahlengiswa kweeparamitha ze-laser, i-substrate iboshwe ngokuqinileyo nge-metallurgically okanye ngokusasazwa kwe-interfacial diffusion.
- I-laser cladding layer inoluhlu olukhulu lokutyeba kunye ne-channel-powder feed feed coating malunga ne-0.2 ukuya kwi-2.0 mm.
- Akukho zithintelo kukhetho lomgubo xa ufaka izinto eziphezulu zokunyibilika kumphezulu wezinto ezisezantsi zokunyibilika.
- Inkqubo yokuvala i-laser kulula ukuzenzekelayo.
- Inkqubo yonyusa ideposition ekhethiweyo enosetyenziso oluphantsi lwemathiriyeli ngomlinganiselo ogqwesileyo wokusebenza ukuya kwixabiso.
- Imiqadi ejolise ekudibaneni kwaye ngaloo ndlela inokudibanisa iindawo ezingafikelelekiyo.
Ngaba ukugquma ngelaser kuyabiza?

Iphuhliswe ngaphezulu kweminyaka engama-30 eyadlulayo, i-laser cladding ibisoloko ithathwa njengetekhnoloji yokhetho lokugqibela. Oku kungenxa yotyalo-mali oluphezulu lokuqala kunye neendleko zokusebenza kwezixhobo ze-laser. Nangona kunjalo, kukho ukuqhubela phambili okukhulu kwiilaser zanamhlanje eziqinileyo.
Ukudityaniswa kweerobhothi ngokuhanjiswa kwe-fiber-coupled beam kuye kwenza inkqubo yasebenza ngakumbi kwaye ingabizi kakhulu. Ukuqwalasela uhlalutyo lweendleko-inzuzo, i-laser cladding iyaphumelela kwaye ikhula ngokukhawuleza kuwo wonke amacandelo oshishino.
Izinto ezintsha zamva nje kwi-laser cladding
Izinto ezitsha zamva nje kwi-laser cladding zigxile ikakhulu ekwandiseni imveliso. Ukuqhubela phambili kusazigcina iimpawu eziphambili zokugquma kwelaser.
Le ilandelayo yimizekelo yezinto ezintsha:
- Ukugquma kwe-laser enesantya esiphezulu kunyibilika ngokupheleleyo umgubo wokongeza kwi-laser beam ngaphambi kokufikelela kwizinto ezisisiseko. Isiseko esiluqilima sidityaniswe nomgubo otyhidiweyo ngokugqithiselwa kobushushu.
- I-laser-wire cladding inikezela ngocingo olushushu ngaphambili kwinkqubo; oku kufumaneka ngakumbi amandla e-laser ukunyibilikisa imathiriyeli esisiseko kunye nesantya esongeziweyo sokutya.
- I-Laser cladding isebenzisa umqadi we-laser we-co-axial ondla izinto ezongezelelweyo ngokuguquguqukayo kwi-workpiece. I-laser iqikelelwa nge-coaxially malunga nocingo. Oku kwandisa ukusetyenzwa okungaguqukiyo okuzimeleyo kwicala lohambo lwe-3D laser metal deposition.
- Inkqubo enkulu yokugquma ngelaser yonyusa ubungakanani bendawo yelaser kwindawo yokusebenza. Oku kuvumela ukusetyenziswa kwamandla e-laser ngakumbi ngaphandle kokunyibilika ngokugqithisileyo kwezinto ezisisiseko kunye nokunyusa ukuncipha.
isiphelo
Itekhnoloji yokugquma iLaser isandula ukwenza inkqubela phambili enkulu kwimveliso yanamhlanje. Iinkampani ezininzi zemveliso ziqwalasela iteknoloji yelaser ukubuyisela iimveliso ze-OEM. Inkqubo iye yaphucula i-corrosion kunye neempawu zokunxiba zezinto.
Esi sikhokelo singentla sichaza inkqubo ye-laser cladding kunye neenzuzo zayo. Abathengi kufuneka baqinisekise ukuba umgangatho ugcinwa ngexesha lokutyalwa kwe-laser. Ukufumana izixhobo zokuvala i-laser ozikhethayo, ndwendwela Chovm.com.