Stainless hlau yog dav siv nyob rau hauv peb lub neej, txawm nyob rau hauv kev tsim khoom, tshuaj lom neeg kev lag luam, zaub mov kev lag luam, los yog lub neej txhua hnub. Tam sim no cia peb qhia cov txheej txheem sib tsoo ntawm stainless hlau hauv machining.
Cov yam ntxwv sib tsoo
1. High plasticity thiab hnyav ua hauj lwm hardening. Lub elongation ntawm stainless hlau yog 1.5 npaug ntawm 45 steel, thiab extrusion deformation thaum sib tsoo yog loj, ua rau mob khaub thuas thiab nyuaj tshwm sim ntawm qhov sib tsoo nto.
2. Kev sib tsoo kub. Stainless hlau muaj cov thermal conductivity tsis zoo, thiab cov thermal conductivity tsuas yog 1/3 ntawm 45 steel, yog li qhov kub ntawm qhov sib tsoo yog siab. Lub linear expansion coefficient ntawm stainless hlau yog loj, yog li nws yog ib qho yooj yim mus ua yuam kev nyob rau hauv qhov ntsuas, tshwj xeeb tshaj yog thaum sib tsoo ntev shafts thiab nyias-walled qhov chaw, nws yog ib qho yooj yim los tsim warpage thiab tsis sib xws thickness.
3. Chip adhesion. Cov nplej abrasive ntawm lub log sib tsoo yog ib qho yooj yim rau adhered los ntawm chips, thiab lub sib tsoo log yog thaiv. Kev sib txhuam intensifies lub zog sib tsoo thiab sib tsoo kub. Yog li ntawd, lub tshuab ua haujlwm saum npoo yog kub hnyiab, thiab lub tshuab ua haujlwm roughness ntawm lub workpiece ua phem. Raws li ntau hom stainless hlau, qhov xwm txheej ntawm kev sib tsoo log blockage kuj txawv.
Kev xaiv ntawm kev sib tsoo log
1. Abrasive: dawb corundum feem ntau xaiv, vim hais tias dawb corundum abrasive muaj kev ua tau zoo txiav thiab nws tus kheej sharpening. Thaum sib tsoo stainless hlau puab qhov, cov khoom abrasive yog ib qho yooj yim rau passivate thiab lub log sib tsoo yog yooj yim los thaiv. Nws yog qhov zoo dua los siv microcrystalline corundum lossis ib qho siv lead ua corundum. Siv zirconium corundum sib tsoo log, cov nyhuv kuj zoo heev, tsis tsuas yog kev sib tsoo efficiency siab, tab sis kuj lub workpiece tsis yooj yim rau hlawv.
2. Grain loj: thaum sib tsoo stainless hlau excircles, nruab nrab grain loj sib tsoo log feem ntau yog siv. Ntawm lawv, f36 thiab F46 qhov ntau thiab tsawg yog xaiv rau kev sib tsoo ntxhib, F60 qhov loj me yog xaiv rau kev sib tsoo zoo, thiab qee zaum F46 lossis F60 qhov ntau thiab tsawg feem ntau xaiv rau ob qho tib si ntxhib thiab zoo sib tsoo. Sab hauv lub voj voog thiab lub ntsej muag kawg
Rau kev sib tsoo, vim tias qhov kev sib cuag ntawm lub log sib tsoo thiab cov khoom ua haujlwm loj, cov coarse-grained sib tsoo log yuav tsum raug xaiv.
3. Bond: feem ntau, ceramic bond sib tsoo log yog xaiv. Vim tias daim ntawv cog lus ceramic muaj kev kub ntxhov thiab kev tiv thaiv corrosion, nws muaj qhov zoo ntawm qhov ntxeem tau, tsis ntshai ntawm ya raws thiab tsis cuam tshuam los ntawm alkaline coolant.
4. Hardness: lub hardness ntawm stainless hlau sib tsoo log yuav tsum yog me ntsis softer dua li cov pa roj carbon zoo tib yam, kom lub sib tsoo log muaj zoo dua tus kheej sharpening. Lub hardness ntawm lub sib tsoo log yog siab dhau lawm, lub blunt abrasive hais tsis yog ib qho yooj yim mus poob, thiab lub sib tsoo lub log yog tiag thaiv, uas ua rau kom lub sib tsoo quab yuam thiab sib tsoo kub, thiab kub kub heev. Lub hardness ntawm lub sib tsoo log yog mos heev, thiab cov khoom abrasive poob sai heev, yog li ntawd lub sib tsoo lub log tsis tuaj yeem tswj tau qhov tseeb geometry, thiab lub log sib tsoo yuav tsum tau txiav ntau zaus.
Xaiv cov txheej txheem tsis
1. Lub log ceev: thaum siv lub log sib txuas rau cov hlau tsis muaj steel, lub log ceev yog nyob rau hauv thaj tsam ntawm 30-35m / s, thaum siv lub log log, nws yog 30-50m / s.
2. Workpiece ceev: workpiece ceev muaj kev cuam tshuam zoo rau kev sib tsoo kub. Rau cov ntaub ntawv uas tsis zoo thermal conductivity thiab yooj yim rau hlawv, ua kom ceev ceev ntawm lub workpiece yuav txo tau qhov kub ntawm lub workpiece.
3. Axial pub tus nqi ntawm lub rooj ua haujlwm: axial pub tus nqi ntawm lub rooj ua haujlwm feem ntau cuam tshuam rau qhov roughness ntawm kev sib tsoo workpiece.
4. Radial pub tus nqi ntawm workbench: thaum sib tsoo stainless hlau, vim hais tias cov khoom yog tawv thiab mos, lub radial pub tus nqi yog me dua thaum sib tsoo cov pa roj carbon zoo tib yam.