Kev ceev faj rau Laser Vuam Tshuab hauv Vuam Cov Khoom Siv Hlau
Cov kev ceev faj uas lub laser vuam tshuab xav tau thaum vuam cov ntaub ntawv hlau, tsuav nws yog ib yam dab tsi uas yuav tsum tau welded los ntawm ib txwm welding, lub laser vuam tshuab yuav ua tau. Piv nrog rau cov txheej txheem welding ib txwm, qhov vuam ntau yog dav dua, xws li cov hlau tsis muaj hlau thiab cov hlau hlau tuaj yeem ua laser welded. Yog li, nyob rau hauv cov nqe lus ntawm vuam hlau cov ntaub ntawv, dab tsi yog qhov ceev faj thaum ua laser vuam?
Laser vuam siv tau los vuam ntawm tib yam khoom siv hlau, nrog rau ntawm ntau hom hlau sib txawv.
Cov yam ntxwv ntawm cov khoom siv hlau txiav txim siab txoj kev vuam. Cov nram qab no tsom xam cov ntsiab lus hauv qab no ntawm kev mloog rau hlau laser vuam:
1. Qhov txias txias ntawm cov ntaub ntawv hlau yog ceev, uas yog txiav txim siab los ntawm cov ntsiab lus carbon hauv cov hlau, uas muaj kev cuam tshuam rau embrittlement, microcracks thiab qaug zog ntawm cov ntaub ntawv hlau.
2. Thaum lub sij hawm vuam txheej txheem, lub siab volatile alloy ntsiab nyob rau hauv cov hlau alloy volatilize los ntawm lub molten pas dej ua ke, uas yuav ua rau tiam ntawm pores thiab tej zaum kuj yuav ua rau undercuts.
3. Thaum vuam cov ntaub ntawv carbon steel, cov ntsiab lus carbon ntawm cov khoom yuav tsum tsawg dua 2 feem pua. Thaum cov ntsiab lus ntawm cov pa roj carbon ntau dua 3 feem pua, qhov nyuaj ntawm laser vuam yuav nce, qhov kev nyiam ntawm cov kab nrib pleb yuav nce, thiab qaug zog thiab hauv qab ntawm cov khoom yuav nce. Rau lub nkig tawg zoo nyob rau hauv cov xwm txheej ntawm tus qauv, ib tug npaum li cas ntawm shrinkage ntawm lub weld yog xam nyob rau hauv kev sib koom tsim, uas yog zoo los txo cov residual kev nyuaj siab thiab tawg nyiam ntawm lub weld thiab tshav kub-tshem tawm tsam.
4. Thaum lub tshuab laser vuam muaj cov hlau uas muaj cov ntsiab lus carbon ntau dua 3 feem pua thiab cov hlau uas muaj cov pa roj carbon tsawg dua 3 feem pua, cov ntaub ntawv paranoid vuam tuaj yeem siv los txwv kev hloov pauv ntawm martensite, uas tuaj yeem tshem tawm kev ntxhov siab. thiab txo qhov tshwm sim ntawm cov kab nrib pleb. Nws tuaj yeem tsis tsuas yog txo tus nqi quenching tab sis kuj txo qhov nyiam ntawm cov kab nrib pleb.
5. Txawm hais tias nws yog pulse laser vuam lossis txuas txuas laser vuam, lub tshuab pulse laser vuam tshuab tuaj yeem txo cov cua sov, tab sis kuj txo cov cim ntawm thermal tawg thiab deformation ntawm lub workpiece.