Puas yog qhov zoo tshaj plaws grit vitrified daim ntawv cog lus pob zeb diamond sib tsoo lub log yuav tsum ua rau lub ntsej muag zoo dua ntawm lub workpiece?

Nyob rau hauv lub teb ntawm precision machining,vitrified daim ntawv cog luspob zeb diamond sib tsoo lub log, nrog lawv cov hardness siab thiab hnav tsis kam, yog cov cuab yeej zoo tshaj plaws rau kev ua cov ntaub ntawv nyuaj thiab nkig. Txawm li cas los xij, muaj kev xav tsis zoo hauv kev lag luam hais txog kev sib raug zoo ntawm kev sib tsoo log grit loj thiab machining zoo: "Qhov zoo dua qhov grit loj ntawm vitrified daim ntawv cog lus pob zeb diamond sib tsoo log, qhov zoo dua qhov zoo ntawm lub tshuab ua haujlwm” Txawm hais tias cov lus no zoo li lub suab zoo thaum xub thawj siab ib muag, puas yog qhov tseeb tiag tiag uas yooj yim?

 

Niaj hnub no, cia peb nthuav tawm qhov tseeb tom qab qhov kev xav tsis zoo no.

 

I. Qhov chaw ntawm Kev Ntseeg Tsis Ncaj Ncees

Tus ntxiab ntawm Idealized Intuition

Qhov kev nkag siab tsis zoo no tshwm sim los ntawm qhov zoo li tsim nyog saw ntawm theoretical logic:

• Finer grit loj → me me abrasive hais → finer txiav cov cim → qis nto roughness → zoo deg zoo.

Nyob rau hauv qhov chaw kuaj mob zoo tagnrho, qhov laj thawj no zoo li siv tau, tab sis hauv kev tsim khoom tiag tiag, qhov xwm txheej no nyuaj dua.

 

II. Qhov Tseeb

Hauv kev sib tsoo tiag tiag, tshwj xeeb tshaj yog thaumvitrified daim ntawv cog luspob zeb diamond sib tsoo log yog siv rau precision/ultra- precision machining ntawm cov ntaub ntawv nyuaj thiab nkig (xws li cemented carbide thiab ceramics), ntau grit loj loj ua rau cov teeb meem tseem ceeb hauv qab no:

"Side Effects" ntawm Excessively Fine Grit Size

Kev txo qis hauv kev sib tsoo Efficiency:

• Qhov zoo dua cov abrasive hais, qhov me me ntawm qhov chaw nti, qhov tsis muaj peev xwm txiav qhov tob, thiab cov khoom tshem tawm tsawg heev. Qhov no ua rau lub sijhawm ua haujlwm ntev thiab tsis muaj nyiaj txiag.

 

Sib tsoo Log Clogging (Pore Clogging):

• Lub qhov hws ntawm nplua -grit sib tsoo log yog me me, ua rau nws nyuaj rau cov micro-chis tsim thaum sib tsoo kom tawm, ceev nrooj clogging lub sib tsoo log nto. Lub log sib tsoo lub log poob nws lub peev xwm sib tsoo, ua rau muaj kev sib txhuam ntau ntxiv nrog cov khoom ua haujlwm, ua rau cov khoom ua haujlwm kub hnyiab, thermal tawg, thiab thaum kawg, qhov deterioration ntawm qhov zoo.

 

Nce Sib Tsoo Sib Tsoo thiab Thaum Tshav Kub Kub:

• Vim yog clogging thiab dulling ntawm cov npoo sib tsoo, qhov kev sib txhuam ntawm lub log sib tsoo thiab cov khoom ua haujlwm yog ntau dua li cov khoom sib tsoo, tsim kom muaj ntau qhov sib tsoo kub. Qhov no tuaj yeem yooj yim ua rau thermal puas rau lub workpiece, thiab nyob rau hauv cov ntaub ntawv ntawm cemented carbide, nws yuav ua rau cobalt theem los nag lossis daus thiab softening.

 

Accelerated Sib tsoo Log Hnav:

• Fine-grained sib tsoo log muaj me me abrasive hais, thiab lub zog thiab kev txhawb nqa ntawm ib tug neeg abrasive hais kuj tsis muaj zog. Nyob rau hauv qhov kev txiav txim ntawm kev sib tsoo quab yuam, lawv yuav poob tawm ntxov ntxov, ua rau txo kev sib tsoo log durability.

 

Kev xav tau siab heev rau cov cuab yeej siv tshuab thiab cov txheej txheem:

• Txhawm rau nthuav tawm lub peev xwm ntawm kev nplua -cov log sib tsoo, qhov ruaj khov siab heev - cov cuab yeej siv lub tshuab ua tau zoo, lub tshuab ua kom txias thiab lim zoo meej, thiab cov kev sib tsoo tsis tshua muaj qhov yuav tsum tau ua. Yog tias cov xwm txheej no tsis ua tiav, cov txiaj ntsig yuav cuam tshuam.

Tus nqi siab:

• Ultra-zoo- pob zeb diamond sib tsoo lub log yog qhov nyuaj rau kev tsim khoom thiab kim, tab sis lawv qhov ua tau zoo tiag tiag yuav tsis yog qhov tseem ceeb hauv qee kis.

 

 

III. Yuav Ua Li Cas Rau Kev Xaiv Grit Loj?

Xaiv lub grit loj ntawm lub log sib tsoo yog txheej txheem txheej txheem uas yuav tsum muaj qhov sib npaug ntawm qhov zoo, kev ua haujlwm zoo, lub neej ntawm lub log, thiab tus nqi.

 

Cov ntsiab cai dav dav yog raws li nram no:

 

Rough Machining/High -Kev Tshem Tawm Ua Haujlwm:

• Lub Hom Phiaj: Kev tshem tawm sai ntawm cov khoom siv ntau dhau.
• Kev xaiv: Coarse grit loj (piv txwv li, 80 # ~ 120 #).
• Cov yam ntxwv: Kev sib tsoo siab, kev tsim hluav taws xob siab, yuav tsum muaj cov cuab yeej zoo rigidity, thiab ua rau lub ntsej muag ntxhib.

 

Semi-Tiav / General Sib Tsoo:

• Lub Hom Phiaj: Sib npaug efficiency thiab nto zoo.
• Kev xaiv: nruab nrab grit loj (piv txwv li, 150 # ~ 320 #). Qhov no yog qhov kev siv ntau tshaj plaws.
• Yam ntxwv: Haum rau kev sib tsoo ntawm feem ntau qhov ntau thiab tsawg thiab cov duab.

 

Fine Finishing/High -Gloss Machining:

• Lub Hom Phiaj: Ua tiav qhov zoo ntawm qhov raug thiab qhov chaw tiav.
• Kev xaiv: Fine grit loj (piv txwv li, 400 # ~ W20).
• Cov yam ntxwv: Tsawg sib tsoo quab yuam, tsis tshua muaj cua sov tsim, zoo nto zoo, tab sis tsis tshua muaj efficiency.

 

Ultra{0}}Precision Machining / Polishing / Ntug Blunting:

• Lub Hom Phiaj: Ua tiav daim iav tiav los yog ntug ntse.
• Kev xaiv: Micro- hmoov grit loj (piv txwv li, W10 thiab finer).
• Yam ntxwv: Yuav tsum muaj cov txheej txheem tshwj xeeb, tsis yog nyob ntawm kev sib tsoo log grit loj.

 

Cov ntsiab lus

Qhov loj me ntawm avitrified daim ntawv cog luspob zeb diamond sib tsoo log tsis yog rooj plaub ntawm "qhov zoo dua, qhov zoo dua." Nws yog ib qho kev xaiv ua tom qab kev txiav txim siab ua tiav kev ua haujlwm, kev lag luam, txheej txheem ua tau, thiab kev ruaj ntseg, thaum ua tau raws li qhov kawg ntawm qhov chaw ua haujlwm zoo.

 

Txoj kev kom raug yog:

"Xaiv qhov coarsest grit loj uas tuaj yeem ua tiav qhov xav tau ntawm qhov roughness." Ua li no maximizes efficiency, txo clogging, txo tus nqi, thiab ua kom cov txheej txheem kev ntseeg tau. Qhov muag tsis pom kev mus nrhiav qhov loj me me ntawm qhov loj me feem ntau ua rau qhov tsis zoo ntawm qhov chaw tsis zoo, kev ua haujlwm qis, thiab cov nqi nce siab.