Subtractive forming thev naus laus zis suav nrog ntau txoj hauv kev, thiab peb qhov kev faib tawm feem ntau yog ua raws li thawj daim ntawv dawb paug ntawm ib feem. Txawm hais tias cov txheej txheem rho tawm zaum kawg tso siab rau kev siv tshuab machining, qhov chaw ntawm qhov khoob ntawm qhov sib txawv heev. Yog li ntawd, kev sib sau ua ke feem ntau muab faib ua peb pawg: profile subtractive forming, casting subtractive forming, thiab forging subtractive forming. Kab lus no feem ntau yog tham txog kev ua cov txheej txheem rho tawm.
Raws li pom hauv daim duab hauv qab no.
Los ntawm daim duab saum toj no, peb tuaj yeem pom tias qhov khoob ntawm qhov yog tau los ntawm kev casting. Txawm li cas los xij, txhawm rau txhawm rau cov khoom pov tseg no kom tau raws li daim ntawv thov tiag tiag thiab cov qauv tsim ntawm cov khoom, feem ntau yuav tsum tau ua cov txheej txheem rho tawm ntxiv, thiab cov txheej txheem ua tau zoo ib yam li cov txheej txheem profile tau hais los saum toj no. Txawm li cas los xij, cov khoom cam khwb cia muaj cov yam ntxwv tshwj xeeb hauv qab no, uas txawv ntawm kev ua cov profile:
(1) Lawv tuaj yeem ua rau ntau yam tshwj xeeb - zoo li qhov chaw thiab txo cov khoom siv txo qis ua haujlwm;
(2) Tus nqi ua haujlwm ntawm cov khoom tuaj yeem txo qis vim tias qhov kev tso cai ntawm cov khoom tuaj yeem tswj tau;
(3) Cov khoom xaiv ntawm qhov chaw tuaj yeem hloov pauv tau thiab muaj cov khoom lag luam hloov tau zoo dua;
(4) Muaj qee qhov kev pheej hmoo ntawm cov khoom sib xws, thiab nws tseem nyuaj heev los tshem tawm kev ntxhov siab. Ntau lub tuam txhab txawm txiav cov ces kaum hauv cov kev sib txuas no.
(5) Tus nqi ntawm qhov seem yog siab dhau, tshwj xeeb tshaj yog rau cov khoom uas tsis tuaj yeem ua ntau yam - tsim tawm.
Kev soj ntsuam daim duab saum toj no, peb tuaj yeem pom meej tias qhov pib zoo ntawm ib feem yog tsim los ntawm cov txheej txheem casting. Txawm li cas los xij, txhawm rau xyuas kom meej tias cov cam khwb cia no tuaj yeem ua tau raws li cov qauv siv tiag tiag thiab cov qauv tsim ntawm cov khoom, feem ntau yuav tsum tau ua cov txheej txheem kev rho tawm tom ntej. Cov txheej txheem kev ua haujlwm no tseem ceeb zoo ib yam li cov txheej txheem profile tau piav qhia saum toj no. Txawm li cas los xij, nws tsim nyog sau cia tias cov khoom cam khwb cia muaj cov yam ntxwv tshwj xeeb uas txawv ntawm cov khoom ncaj qha los ntawm cov profiles.(来源:UG学习堂小胥收徒)
