Dab tsi ntawm cov cuab yeej hnav yuav tshwm sim nyob rau hauv cov txheej txheem ntawm tig thiab milling
Hauv kev tig milling compound machining, cov cuab yeej hnav feem ntau tshwm sim los ntawm ib qho laj thawj tseem ceeb thiab ua ke ua ke. Raws li kev ua haujlwm sib txawv, cov yam ntxwv tseem ceeb uas ua rau cov cuab yeej hnav sib txawv, feem ntau suav nrog cov hauv qab no:
1. Abrasive hnav
Hauv cov txheej txheem txiav, cov nti, qee qhov luag nyav nyuaj me ntsis nrog cov hardness siab hauv cov khoom siv ua haujlwm, xws li thawj theem nti buildup, tuaj yeem carve grooves ntawm qhov sib txawv ntawm qhov tob ntawm cov cuab yeej nto. Qhov no yog ib qho tawv nqaij hnav, tseem hu ua abrasive hnav.
Thaum high-speed steel kawg milling cutter yog siv rau txoj siav thiab milling txheej txheem, vim hais tias lub hardness ntawm high-ceev steel cutter tsis siab piv nrog cov cemented carbide cutter, txiav ceev yog tsawg, thiab cov cua kub kuj tsis zoo, thaum lub sij hawm kev kub ceev steel kawg milling cutter. Txoj kev tig milling composite ua tsis nyob rau ntawm qhov kub thiab txias, abrasive hnav ua qhov tseem ceeb tshaj plaws hnav yog vim li cas rau high-speed steel cutter.
2. Diffusion hnav
Nyob rau ntawm qhov kub thiab txias, cov cuab yeej nto tiv nrog lub workpiece thiab nti nto, thiab cov tshuaj lom neeg ntawm lub cuab yeej thiab workpiece diffuse rau ib leeg, hloov cov muaj pes tsawg leeg thiab cov qauv ntawm cov khoom qub, tsis muaj zog ua hauj lwm ntawm cov khoom siv, thiab accelerating. txheej txheem hnav. Diffusion hnav feem ntau tshwm sim nyob rau hauv high-ceev txiav, yog li qhov txiav kub yog siab heev thiab lub ntsiab diffusion tus nqi siab. Nyob rau tib lub sijhawm, nrog kev nce ntawm kev txiav ceev, qhov degree ntawm diffusion hnav nce.
3. Oxidation hnav
oxidation me ntsis ntawm cov cuab yeej nto yog qhov zoo los txo cov cuab yeej hnav, vim tias muaj cov oxide zaj duab xis tuaj yeem zam kev sib cuag ncaj qha ntawm cov cuab yeej nti thiab cov cuab yeej ua haujlwm, yog li txo qhov adhesion. Txawm li cas los xij, thaum txiav kub siab, oxidation ntawm cov cuab yeej siv yuav khaus heev, tsim cov oxides muag muag. Cov oxides no raug nyiag los ntawm chips lossis workpieces, uas ua rau poob ntawm cov khoom siv, uas yog oxidation hnav nyob rau hauv txoj kev milling composite ua.