Kev xaiv ntawm binder thiab abrasive yog zoo sib xws. Piv txwv li, kev siv CBN feem ntau yuav tsum tau sib tsoo lub log kom nws cov duab tsis hloov thaum siv thiab tsis raug tshem tawm ntawm lub tshuab cuab yeej kom txog thaum nws tau noj tag nrho. Raws li cov thermal conductivity ntawm CBN yog qhov zoo heev, nws yog qhov zoo dua los siv cov ntawv cog lus hlau. Kev sib xyaw ua ke ntawm ob muab cov xwm txheej rau kev txiav txias. Vim hais tias cov txiav kub yog kis los ntawm cov abrasive thiabsib tsoolog, thiab tom qab ntawd nqa nrog lub coolant, nws nrawm dua li nkag mus rau hauv lub workpiece.
Muaj ob hom hlau daim ntawv cog lus: electroplating thiab sintering.Electroplated sib tsoocov log tsis tau txiav, lawv tau ua rau hauv qhov tseeb zoo thaum pib thiab siv kom txog thaum lawv qaug zog. Sintered hlau sib tsoo log feem ntau yog txiav los ntawm cov hluav taws xob hluav taws xob, thiab tom qab ntawd ntsia rau ntawm cov cuab yeej siv tshuab xws li electroplated sib tsoo lub log. Lub radial runout ntawm sintered thiab electroplated sib tsoo log ntsia rau ntawm spindle yuav tsum tsawg tshaj li 0.0125mm. Rau cov hlau sib tsoo sib tsoo lub log, nws yog ib qho tseem ceeb heev los txo cov spindle runout.
Vim hais tias qhov kev ncua deb ntawm cov nplej abrasive protrude los ntawm daim ntawv cog lus yog tsawg heev, yog hais tias lub runout mus txog 0.025mm, ib kawg ntawm lubsib tsoolog yuav overloaded, ua rau hnyav hnyav, thiab lwm yam kawg yuav maj mam loaded thiab tseem ntse. Ib co electroplated sib tsoo lub log tuaj yeem tsim me me contour arc radius (li 0.125mm). Txawm li cas los xij, lub vojvoog arc ntawm feem ntau electroplated sib tsoo log yog ntau dua 0.5 hli. Feem ntau, electroplated sib tsoo lub log yog siv rau kev sib tsoo ceev, thaum hlau sintered sib tsoo log yog tsim rau kev sib tsoo cov ntaub ntawv ceramic.
Monolithic hlau sib txuassib tsoo logNws muaj qhov me me ntawm kev hloov pauv rau kev vibration, runout, coolant flow thiab lwm yam kev ua haujlwm. Yog hais tias lub rigidity ntawm lub grinder, workpiece thiab fixture yog tsis zoo, los yog cov kabmob ntawm lub qub tshuab cuab yeej tsis zoo, thiab tsis muaj qhov sib npaug ntawm cov cuab yeej siv lub tshuab, kev siv cov electroplated sib tsoo log nyob rau hauv cov xwm txheej no yuav ua rau. teeb meem nyob rau hauv kev pab cuam lub neej ntawm lub sib tsoo log, workpiece tiav thiab nto zoo nkauj. Raws li kev vibration thiab ruaj khov ntawm lub tshuab cuab yeej thiab lwm yam kev mob tshwj xeeb, qee zaum nws yog qhov zoo dua los siv cov khoom sib tsoo sib tsoo log.
Resin daim ntawv cog lus muaj zog damping muaj peev xwm rau kev co. Tau kawg, cov cuab yeej siv thiab lub sijhawm koom nrog hauv kev kho thiab hnav khaub ncaws ntawm resin bonded sib tsoo log yuav nce tus nqi. Ceramic bond feem ntau yog siv. Vim tias lub log sib tsoo muaj qhov sib tsoo, cov kua txiav tuaj yeem nkag mus rau qhov sib tsoo arc zoo, thiab muaj qhov loj los tuav cov khoom khib nyiab. Nyob rau tib lub sijhawm, cov pob zeb sib tsoo sib tsoo tuaj yeem yooj yim txiav kom raug thiab ua kom zoo los ntawm kev siv cov cuab yeej pob zeb diamond.
Post lub sij hawm: Jan-16-2023