Dab tsi yog txoj hauv kev los xyuas kom meej thiab txhim kho Machining raug?
1) Kev tiv thaiv kev siv thev naus laus zis: tsim nyog siv cov thev naus laus zis thiab cov cuab yeej siv ncaj qha los txo qhov kev ua yuam kev qub hloov pauv qhov kev ua yuam kev tsis zoo ntawm qhov qub kev ua yuam kev homogenization thawj qhov yuam kev.
2) Kev them nyiaj ua yuam kev thev naus laus zis: kev tshawb nrhiav online ntawm kev sib tw tsis siv neeg lub tshuab ua haujlwm tswj lub luag haujlwm ntawm kev ua yuam kev.
- Ua li castshuabnto geometry suav nrog?
Geometric roughness, nto corrugancy, kev ntxhib los mos kev taw qhia, nto defects.
-Dab tsi yog lub cev thiab tshuaj lom neeg ntawm cov khoom txheej txheej?
1) Txias ua hauj lwm hardening ntawm nto txheej hlau
2) Metallographic deformation ntawm txheej txheej hlau
3) Residual stress ntawm nto txheej hlau
-Xav tshuaj xyuas cov yam cuam tshuam rau lub machining nto roughness?
1) Tus nqi roughness muaj xws li: qhov siab ntawm qhov seem seem txiav.
2) Lub ntsiab yam tseem ceeb: tip arc radius, lub ntsiab deflection Lub kaum sab xis, deflection Lub kaum sab xis pub
3) Lwm yam tseem ceeb: nce kev txiav ceev, xaiv cov kua txiav kom tsim nyog thiab ua kom lub kaum sab xis ntawm lub cuab yeej txhim kho kev sib tsoo zoo ntawm cov cuab yeej
-Tshawb xyuas cov yam cuam tshuam rau saum npoo roughness ntawm cov txheej txheem sib tsoo.
1) Geometric yam: qhov cuam tshuam ntawm kev sib tsoo ntawm qhov roughness
2) Kev cuam tshuam ntawm kev sib tsoo log granularity thiab sib tsoo log hnav ntawm qhov roughness
3) Kev cuam tshuam ntawm lub cev muaj zog: yas deformation ntawm txheej txheej hlau: xaiv kev sib tsoo log
Sim los tshuaj xyuas cov xwm txheej cuam tshuam rau kev ua haujlwm txias txias ntawm qhov txiav?
Kev cuam tshuam ntawm kev txiav tsis muaj kev cuam tshuam ntawm cov cuab yeej geometry lub zog ntawm cov khoom siv
Kev sib tsoo temper hlawv yog dab tsi? Kev sib tsoo quench burn yog dab tsi? Kev sib tsoo annealing hlawv yog dab tsi?
1) Tempering: Yog hais tias qhov kub nyob rau hauv qhov sib tsoo cheeb tsam tsis siab tshaj qhov transformation kub ntawm hardened steel, tab sis tau tshaj lub martensite hloov kub, lub workpiece nto hlau martensite yuav hloov mus rau ib tug qis hardness ntawm lub tempered qauv.
2) quenching: Yog hais tias qhov kub ntawm qhov sib tsoo cheeb tsam tshaj qhov hloov pauv kub, ua ke nrog cov nyhuv txias ntawm lub coolant, cov hlau saum npoo yuav tshwm sim thib ob quenching martensite qauv, qhov hardness yog siab dua qhov qub martensite; Nyob rau hauv nws cov txheej txheem qis, vim qeeb qeeb, cov ntaub so ntswg tempered nrog qis hardness dua li thawj tempered martensite tshwm.
Annealing: Yog hais tias qhov kub nyob rau hauv lub sib tsoo cheeb tsam tshaj lub theem hloov kub thiab tsis muaj coolant thaum lub sij hawm sib tsoo txheej txheem, lub nto hlau yuav muaj ib tug annealed qauv thiab hardness ntawm cov hlau nto yuav txo sharply.
