Feature ntawm Milling Cutters
Thaum ua haujlwm nrog cov khoom siv tshuab nyuaj xws li Hastelloy, waspaloy, Inconel thiab Kovar, kev paub txog kev siv tshuab thiab kev paub yog qhov tseem ceeb heev. Tam sim no, muaj ntau thiab ntau daim ntawv thov ntawm nickel-based alloys, feem ntau yog siv los tsim qee qhov tseem ceeb hauv aerospace, kev kho mob thiab tshuaj lom neeg kev lag luam. Cov ntaub ntawv no muaj lub zog siab, corrosion kuj, thiab tuaj yeem tiv taus qhov kub thiab txias. Qee cov ntsiab lus tshwj xeeb tau ntxiv rau cov ntaub ntawv saum toj no kom tau txais kev ua tau zoo dua. Ntawm qhov tod tes, txawm li cas los xij, cov ntaub ntawv no kuj ua tshwj xeeb nyuaj rau zeb.
Peb paub tias npib tsib xee thiab chromium yog ob lub ntsiab additives hauv nickel-based alloys. Ntxiv cov npib tsib xee tuaj yeem ua rau cov khoom hnyav ntxiv, ntxiv cov chromium tuaj yeem txhim kho qhov hardness ntawm cov khoom, thiab qhov sib npaug ntawm lwm cov khoom tuaj yeem siv los kwv yees qhov hnav ntawm cov cuab yeej. Lwm cov ntsiab lus ntxiv rau cov khoom siv xws li: silicon, manganese, molybdenum, tantalum, tungsten, thiab lwm yam. Nws yog tsim nyog sau cia tias tantalum thiab tungsten tseem yog cov khoom tseem ceeb uas siv los ua cemented carbide, uas tuaj yeem txhim kho kev ua haujlwm ntawm cemented carbide, tab sis qhov sib ntxiv ntawm cov ntsiab lus no rau cov khoom siv ua haujlwm ua rau nws nyuaj rau zeb, yuav luag zoo li txiav ib lub cuab yeej carbide nrog lwm tus.
Vim li cas milling cutters txiav lwm cov ntaub ntawv tawg sai dua thaum milling nickel-based alloys? Nws yog ib qho tseem ceeb kom nkag siab qhov no. Machining npib tsib xee-raws li alloys, tus nqi cuab yeej yog siab, thiab tus nqi yog 5 mus rau 10 npaug ntawm milling dav hlau.
Tsis tas yuav hais, cua sov yog qhov tseem ceeb tshaj plaws cuam tshuam rau lub neej ntawm lub cuab yeej thaum milling npib tsib xee-raws li alloys, vim tias txawm tias cov cuab yeej carbide zoo tshaj plaws tuaj yeem raug rhuav tshem los ntawm kev txiav ntau dhau. Lub cim ntawm kev kub siab heev tsis yog ib qho teeb meem rau milling npib tsib xee alloys. Yog li thaum milling cov alloys, cua sov yuav tsum tau tswj. Tsis tas li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum paub txog cov nqi hluav taws xob uas tsim los thaum ua haujlwm nrog ntau hom cuab yeej (cov cuab yeej siv hlau ceev, cov cuab yeej carbide lossis cov cuab yeej ceramic).
Ntau yam kev puas tsuaj kuj tseem cuam tshuam rau lwm yam, thiab cov khoom siv tsis zoo thiab cov cuab yeej tuav tau tuaj yeem ua rau lub neej luv. Thaum lub rigidity ntawm lub clamped workpiece tsis txaus thiab txav tau tshwm sim thaum txiav, nws yuav ua rau cov pob txha ntawm cov cemented carbide matrix. Qee lub sij hawm cov kab nrib pleb me me tshwm sim ntawm ntug txiav, thiab qee zaum ib qho tawg tawm ntawm cov carbide ntxig, ua rau nws tsis tuaj yeem txiav txuas ntxiv. Tau kawg, qhov chipping no kuj tuaj yeem tshwm sim los ntawm kev nyuaj siab carbide los yog txiav ntau dhau. Nyob rau lub sijhawm no, cov cuab yeej siv hluav taws xob high-speed steel yuav tsum tau txiav txim siab rau kev ua haujlwm kom txo tau qhov tshwm sim ntawm chipping. Tau kawg, cov cuab yeej siv hlau ceev ceev tsis tuaj yeem tiv taus kub dua li cemented carbide. Yam khoom siv twg yuav tsum tau txiav txim siab raws li qhov xwm txheej.