Vim lub siab hardness, brittleness, siab zog thiab tsis tshua muaj thermal conductivity ntawm quenched steel, txiav quab yuam yog loj, txiav kub yog siab, lub cuab tam yog ib qho yooj yim mus hnav thiab muaj ib tug teeb meem ntawm txiav. Yog li ntawd, nws yog ib qho khoom siv uas nyuaj rau kev txiav, thiab cov kev ntsuas sib xws yuav tsum tau ua kom thiaj li tig tau zoo.
1. Kev xaiv cov cuab yeej txiav rau quenching steel ua
Xaiv cov cuab yeej cuab tam nrog cov hardness siab, siab dabtsi yog khoov lub zog thiab zoo tshav kub kuj yog ib qho tseem ceeb rau tig quenched steel. Tsuav nws yog tawv alloy, nws tuaj yeem siv los tig quenched steel. Cov qib ntawm cov cemented carbide nrog cov txiaj ntsig zoo feem ntau suav nrog yt05, YS10, ys8, 600, 610, 726, 758, 767, 813, thiab lwm yam. kub pressed alumina los yog silicon nitride composite ceramics kuj tsim nyog rau tig quenched steel vim lawv siab dua. hardness thiab kub tsis kam tshaj cemented carbide; Cubic boron nitride tsis tshua muaj kev sib raug zoo nrog cov khoom siv hlau. Nws yog cov cuab yeej zoo tshaj plaws rau high-speed semi tiav tig thiab tiav tig quenched steel.
2. Kev xaiv cov geometric tsis rau Tig Hardened Steel Tools
Cov kev ntsuas geometric ntawm kev tig cov cuab yeej hardened steel yuav tsum tau muab txiav txim siab thiab xaiv raws li cov khoom siv ua haujlwm, kev ua haujlwm ntawm cov cuab yeej siv thiab txiav cov xwm txheej. Feem ntau, thaum ua quenched steel, lub ntsiab deflection lub kaum sab xis yog feem ntau ntawm 30 degree thiab 60 degree . Feem ntau, quenching hardness yog tsawg thiab rigidity ntawm cov txheej txheem txheej txheem yog zoo, yog li ib tug me me lub ntsiab deflection kaum yuav xaiv tau. Ntawm qhov tsis sib xws, lub ntsiab deflection lub kaum sab xis tuaj yeem tsim nyog nce. Thaum lub kaum sab xis pem hauv ntej yog nruab nrab ntawm 0 degree thiab 8 degree, qhov siab dua qhov quenching hardness, ntau dua lub kaum sab xis ntawm ob sab. Thaum ua tiav, lub kaum sab xis pem hauv ntej tuaj yeem ua raws li 0 degree. Thaum tig quenched steel, lub nraub qaum yuav tsum tsis txhob loj dhau. Feem ntau, nws yog qhov zoo dua los noj 3 degree rau 5 degree.
3. Kev xaiv ntawm kev txiav
Thaum tig quenched steel, tsim nyog txiav tsis yuav tsum tau xaiv tom qab xaiv cov cuab yeej tsim nyog thiab cov cuab yeej geometric tsis raws li nws cov machining kev ua tau zoo thiab workpiece puab thiab hardness. Yuav kom ua tau raws li qee qhov kev xav tau, uas yog, xaiv cov khoom siv hniav raws li kev ua haujlwm ntawm quenched steel.
Txiav quenched steel muaj siab txiav tsis kam, siab txiav kub thiab tsis tshua muaj cuab yeej durability. Yog li ntawd, kev txiav ceev feem ntau yog qis dua li ntawm cov hlau dav dav hauv tib yam kev mob. Qhov kev txiav ceev feem ntau yog nyob nruab nrab ntawm 40-100m / min, thiab qhov kev txiav ceev uas tsim nyog yuav txo qis nrog qhov nce ntawm workpiece hardness. Thaum lub hardness ntawm lub workpiece nce mus txog saum toj no HRC65, txiav ceev ntawm ntxhib machining yuav tsawg tshaj li 30m / min, thaum txiav ceev ntawm tiav machining nrog me me txiav qhov tob thiab cov cuab yeej pub mis yuav yog 100 m / min -120m / min. Yog hais tias cermet thiab cubic boron nitride siv rau kev zoo tig, txiav ceev tuaj yeem ncav cuag 120-200m / min.