Kev tsis xws luag thiab txheej txheem ntsuas ntawm dabtsi yog khoov workpiece
1. Kev tawg
Tom qab txiav los yog xuas nrig ntaus, burrs los yog cov kab nrib pleb me me feem ntau tshwm sim ntawm cov npoo ntawm cov ntaub ntawv, uas yooj yim rau kev ntxhov siab concentration thiab tawg thaum khoov. Thaum lub workpiece tawg lawm, lub shear nto (nrog burrs) yog sab nraud, thiab txoj hauj lwm cracking tshwm sim nyob rau hauv lub shear tawg tsam thiab kneading cheeb tsam ntawm lub workpiece. Kev ntsuas thev naus laus zis yog:
(1) Tom qab txiav los yog xuas nrig ntaus, lub workpiece yuav tsum tau xyuas kom zoo nyob rau hauv thaum khoov, uas yog, nws yog nyob rau hauv lub siab, thiab lub forming nyhuv yog zoo.
(2) Ua ntej khoov, lub workpiece yuav tsum tau deburred. Tom qab khoov, qhov tawg tuaj yeem polished nrog phau ntawv grinder.
2. Rov qab
Nyob rau hauv txoj kev khoov ntawm cov ntaub ntawv hlau, yas deformation thiab elastic deformation muaj nyob rau tib lub sijhawm. Thaum kawg ntawm kev khoov, springback tshwm sim vim qhov rov qab ntawm elastic deformation. Springback ncaj qha cuam tshuam qhov tseeb qhov tseeb ntawm lub workpiece thiab yuav tsum tau tswj. Kev ntsuas thev naus laus zis yog:
(1) Txoj kev them nyiaj lub kaum sab xis. Yog tias lub kaum sab xis ntawm lub workpiece yog 90 degree, qhib lub kaum sab xis ntawm qhov zawj qis (V duab) ntawm lub tshuab dabtsi yog khoov tuaj yeem xaiv 78 degree.
(2) Lub sij hawm pressurization nce txoj kev kho. Thaum kawg ntawm dabtsi yog khoov, kev kho siab yog nqa tawm kom ntev lub sij hawm sib cuag ntawm lub Upper tuag, workpiece thiab qis groove ntawm lub dabtsi yog khoov tshuab, thiaj li yuav ua rau kom cov yas deformation degree ntawm lub fillet ntawm lub qis zawj, thiaj li hais tias tus rebound. sib txawv ntawm cov fibers nyob rau hauv qhov nro thiab compression cheeb tsam resists ib leeg, thiaj li yuav txo tau lub rebound.
3. Bulge
Rau qhov dabtsi yog khoov ntawm nruab nrab thiab hnyav daim hlau (thickness t Ntau dua los yog sib npaug rau 6 hli), qhov teeb meem no kuj tshwj xeeb. Cov ntaub so ntswg nyob ze ntawm txoj kab dabtsi yog khoov yuav loj hlob thaum lub sijhawm khoov, uas ua rau tsim cov bulges ntawm bending fillet. Los ntawm kev soj ntsuam ntawm lub rhiav tsim workpiece, qhov loj ntawm lub fillet bulge nce nrog rau qhov nce ntawm lub phaj thickness. Rau qee qhov chaw ua haujlwm nrog cov kev xav tau zoo, cov pob txha fillet yuav cuam tshuam qhov tseeb ntawm qhov vuam lossis sib dhos, thiab kev ntsuas thev naus laus zis yuav tsum tau coj los tshem tawm. Kev ntsuas thev naus laus zis yog:
(1) Yog tias cov cuab yeej siv hluav taws xob siv rau kev ua haujlwm tsis zoo, cov txheej txheem cov neeg ua haujlwm yuav tsum ua rau sab hauv concave arc nrog txoj kab bending raws li qhov nruab nrab ntawm daim duab blanking thaum lub blanking yog nqa tawm, thiab tshem tawm cov ntawv hlau ntau dhau, qhov R yog lub voj voog arc.
(2) Rau lub workpiece tsis concave arc ntawm daim ntawv hlau txiav, manually zom nws mus rau qhov yuav tsum tau muaj qhov tseeb tom qab khoov. Yog hais tias qhov kev sib dhos yuav tsum tau siab, lub workpiece yuav tsum tau milled.
4. Cov khoom siv zawv zawg
(1) Txoj kab dabtsi yog khoov ntawm lub workpiece yuav tsum khoov yog tsis sib npaug mus rau lub ntug kab ntawm lub workpiece, uas yog, ib kawg muaj ib tug fulcrum nyob rau hauv qis groove ntawm lub dabtsi yog khoov tshuab, thiab lwm yam kawg tsis muaj fulcrum. Tus kws tshaj lij ntxiv ib txoj hlua khi ntawm txoj kab khoov ntawm lub workpiece rau daim duab blanking. Nws qhov ntev yog qhov offset sab nraud ntawm txoj kab dabtsi yog khoov ntawm lub workpiece, thiab qhov dav offset yog ib nrab ntawm qhov qis qis dav ntawm lub tshuab bending xaiv.
(2) Txoj kab khoov ntawm lub workpiece yuav tsum tau khoov yog sib npaug rau ntawm ntug kab ntawm lub workpiece, tab sis ob qho tag nrho tsis muaj fulcrum nyob rau hauv qis zawj ntawm lub tshuab dabtsi yog khoov. Cov txheej txheem cov neeg ua haujlwm nce qhov loj ntawm daim duab blanking kom cov ntug muaj fulcrum ntawm qhov qis qis ntawm lub tshuab dabtsi yog khoov kom tau raws li qhov khoov. Tom qab cov txheej txheem khoov tiav lawm, cov nyiaj txiav yuav tsum ua tiav raws li cov khoom kos duab, thiab txiav qhib yuav tsum tau polished kom tau raws li cov khoom tsim nyog.
5. Indentation lossis plam
Thaum lub workpiece raug nias thiab khoov, nws yog nyem los ntawm lub Upper tuag thiab qis zawj ntawm lub tshuab dabtsi yog khoov, uas ua rau indentation los yog zawv zawg raug mob mus rau txawv degrees. Feem ntau, qhov kev xav tau ntawm qhov roughness ntawm cov pa roj carbon steel tsis siab, thiab cov nti me ntsis tsis cuam tshuam rau lawv. Txawm li cas los xij, rau 430-2b, 12cr17mn6ni5 thiab lwm yam khoom siv tshwj xeeb, lub ntsej muag ntawm daim iav yuav tsum tau tiv thaiv los ntawm qee yam kev ntsuas. Kev ntsuas thev naus laus zis yog:
(1) Rau cov ntaub ntawv carbon steel, nce qhov dav ntawm qhov khoov qis qis, ua kom nws txoj kev sib sau ua ke, thiab txo qhov extrusion ntawm qis zawj ntawm lub workpiece.
(2) Rau cov ntaub ntawv tshwj xeeb stainless hlau, ua kev npaj ua ntej khoov, thiab nteg ntawv rau ntawm qhov qis qis ntawm lub tshuab dabtsi yog khoov rau kev sib cais. Yog tias ob sab ntawm lub workpiece xav tau kev tiv thaiv, lub workpiece kuj tuaj yeem muab tso rau hauv daim ntawv raws li cov kev taw qhia ntawm txoj kab khoov rau kev sib cais. Cov uas muaj kev tsim khoom zoo dua tuaj yeem siv cov ntaub thaiv npog tiv thaiv.