Burrs ib txwm yog "teeb ​​meem" rauib feem manufacturers, thiab lawv tsis yog tib yam uas tuaj yeem ua teeb meem. Qee zaum cov khoom yuav tsum muaj cov ntse, tsis txuas txuas ntxiv, thiab lwm lub sijhawm lawv yuav tsum muaj cov npoo sib npaug nrog qhov tshwj xeeb qhov tseeb. Ib qho ntxiv, cov txheej txheem deburring yuav tsum tsis ua kom puas qhov chaw nyob ze, hloov xim ntawm ib feem lossis tso cov oxides lossis lwm yam khoom siv rau ntawm ntu ntu.

Many ib feem manufacturers are looking for more cost-effective deburring methods, more precise edge trimming processes, faster processing speeds and less negative impact. However, the complexity of the part combined with the difficult material properties often make deburring a difficult challenge. Some manufacturers must remove burrs quickly and completely. For example, to match the part's production rhythm and avoid slowing down the production line, many automotive ib feem manufacturers must completely deburr a part in less than four seconds. Other ib feem manufacturers aim to ensure that part edges have precise and repeatable geometry.

Nov yog 10 ntawm cov txheej txheem deburring nyuaj tshaj plaws thiab cov txheej txheem siv kom ua tiav, txawm hais tias txhua txoj hauv kev deburring no yuav muaj qhov ua tsis zoo ntawm ib yam lossis lwm yam.

(1) Cov Khoom Sib Sau

Qhov sib xyaw ua ke yog qhov nyuaj tshaj plaws rau deburr. Qee qhov sib xyaw ua ke muaj ob lub hlau, thaum lwm tus (xws li cov rooj sib tham hauv Circuit Court) muaj cov txheej sib txawv ntawm cov yas, cov khoom siv hlau thiab cov hlau. Qee qhov kev sib xyaw ntawm huab cua (xws li carbon fiber/aluminium composites) muaj lub zog siab/hnyav hnyav, tab sis cov npoo ntawm cov khoom siv hauv dav hlau yuav tsum ua raws txoj cai nruj rau kev nyab xeeb hauv dav hlau.

Qhib cov npoo ntawm cov sib xyaw ua ke ntau yam (piv txwv li, qhov pom nyob rau sab saum toj thiab hauv qab) tshwj xeeb tshaj yog raug rau tawg, muaj kev ntxhov siab ntau dhau, tshem tawm cov tawv nqaij, nqus dej noo, hnav tsis tu ncua, thiab tshuaj lom neeg xeb. Txhua qhov teeb meem no tuaj yeem cuam tshuam tsis zoo rau lub neej lossis kev ua haujlwm ntawm cov khoom. Deburring, ntawm qhov tod tes, muaj peev xwm ua rau ob qho ua rau thiab zam lossis txhim kho cov teeb meem no.


Daim duab 1 Deburring qhov sib xyaw ua ke uas muaj xya txheej ntawm cov khoom yog qhov nyuaj heev

Txhawm rau ua kom tau txais ib feem ntawm cov npoo thiab qhov chaw, txhua cov khoom siv hauv kev sib xyaw yuav tsum tau kho sib txawv. Yog li ntawd, txheej txheem zoo tshaj plaws los txhim kho cov yam ntxwv zoo ntawm ib yam khoom yuav ua rau muaj kev puas tsuaj rau lwm tus.

Muaj lwm qhov, cov lus nug ntau ntxiv: Dab tsi txiav txim siab cov npoo thaum ua cov txheej sib txawv ntawm cov khoom? Nws yog feem ntau lees paub tias ntug yog qhov pom ntawm sab nrauv. Txawm li cas los xij, rau cov ntaub ntawv sib xyaw, txhua qhov kev hloov pauv los ntawm ib txheej ntawm cov khoom mus rau lwm qhov tuaj yeem tsim ib qho ntug. Yog li, cov khoom sib xyaw ua ke yuav muaj ntau lub ntsej muag sab hauv, thiab txhua ntug tuaj yeem yog qhov tseem ceeb rau kev ua haujlwm cov khoom lag luam.

Thaum deburring cov khoom sib xyaw, nws yog ib qho tseem ceeb kom nkag siab txog cov yam ntxwv ntawm cov khoom sib txawv hauv cov khoom sib xyaw thiab tus neeg siv qhov kev xav tau zoo yog rau txhua qhov cuam tshuam txhawm rau txhawm rau txo qis. Txawm hais tias yuav muaj ntau qhov kev ua haujlwm/txheej txheem tiav uas txhua tus tuaj yeem ua tau raws li qhov yuav tsum tau ua kom tau zoo, txheej txheem zoo tshaj yuav tsum tau ua tib zoo xaiv los ntawm lawv.

Cov cuab yeej tsim nyog tshaj plaws yuav tsum raug xaiv rau cov txheej txheem deburring, uas yuav tsum muaj kev koom tes ze nrog cov tuam txhab tsim khoom kom ua kom zoo dua ntawm lawv cov kev paub. Tsis tas li ntawd, kev txiav txim siab pom zoo yuav tsum tau siv los xyuas kom cov txheej ntawm cov khoom tsis tawg thiab tev tawm.

(2) Hla-qhov

Hla-qhov tsim cov txheej txheem ntug peb-seem, thiab qhov sib txawv tuab thiab qhov siab ntawm qhov khawb ntawm txhua qhov ntawm txoj kab kev sib tshuam txhais tau tias cov txheej txheem deburring raws li qhov loj me me burr yuav tsis muaj txiaj ntsig.

Ntxiv nrog rau cov cuab yeej siv tig thiab qee qhov tshwj xeeb deburring cov cuab yeej, thermal deburring yog txoj hauv kev deburring zoo rau ntau qhov hlau nrog hla qhov, suav nrog qhov taub me me. Yog tias qhov chaw ua tiav ntawm qhov hla hla qhov xav tau, cov txheej txheem hluav taws xob deburring thiab cov txheej txheem extrusion honing abrasive ntws txheej txheem tsim los ntawm Kennametal kuj tseem tuaj yeem siv kom tau txais cov npoo zoo ntawm yuav luag txhua qhov teeb tsa. Rau txoj kab uas hla loj hla, deburring tuaj yeem ua tiav sai thiab muaj txiaj ntsig zoo siv cov roj hmab txhuam lossis cov ntawv slug-yam cuab yeej.


Daim duab 2 Sib piv ntawm qhov chaw hla hla ua ntej (sab laug) thiab tom qab (txoj cai) kho nrog cov cuab yeej deburring

Deburring dhau los ua qhov nyuaj thaum lub qhov taub tsawg dua 3.175 mm thiab qhov tob yog ntau dua 10 npaug ntawm txoj kab uas hla, vim tias feem ntau cov cuab yeej lossis txheej txheem deburring muaj teeb meem nkag mus rau qhov tob thiab me me hla qhov. Piv txwv li, deburring qhov sib sib zog nqus-qhov nyob hauv lub cav tsheb cav crankshaft yog qhov nyuaj heev, thiab qhov xav tau kom deburring ntawm kev nrawm ua rau nws nyuaj dua, vim txhua qhov deburring yuav tsum ua tiav hauv plaub vib nas this lossis tsawg dua.

(3) Kev xa mus tsev

Cov ntaub ntawv xa mus rau tsheb yog ib qho nyuaj "tshawb nrhiav" ntawm cov nqaim nqaim, thiab cov burrs feem ntau muaj nyob ntawm txhua sab ntawm cov kev ua haujlwm no. Cov kab lus nyuaj ua rau nws nyuaj rau tshem tawm cov burrs no. Txhuam txhuam cov nylon txhuam thiab lwm yam txhuam txhuam tuaj yeem ncav cuag hauv qab ntug thiab tshem tawm cov burr los ntawm kev txav rov qab thiab hla dhau ntawm ntug. Cov txheej txheem deburring tib yam yog siv rau cov npoo ntawm cov cav tsheb uas ntsuas ntau pua ntiv tes.


Daim duab 3 Txhuam txhuam cov nylon txhuam kom zoo tshem cov burrs los ntawm txoj kab nqaim hauv cov tsev tsis siv neeg

(4) Kev sib xyaw ua ke ntawm lub dav hlau cav

Lub tshuab nqus plua plav yog ib feem tseem ceeb ntawm lub dav hlau cav cav nrog tus naj npawb ntawm cov cav cav luv dua. Zuag qhia tag nrho lub tshuab ua haujlwm feem ntau yog siv ncaj qha los ntawm ib qho forging, tsis txhob siv cov tshuab ib tus neeg cais thiab txuas lawv rau hauv ib qho los ntawm ib qho, thiab tom qab ntawd ua tiav lub tshuab hluav taws xob. Cov khoom siv los ua lub impellers yog cov cua sov uas tiv taus cov hlau tsis muaj peev xwm tiv taus qhov kub ntawm 1650 ° C, uas feem ntau yog cov khoom siv nyuaj rau tshuab.

Cov discs uas muaj txiaj ntsig no yuav tsum muaj cov ntaub ntawv muaj tseeb los tsim cov cua ntws, thiab txhua ntug yuav tsum tsis muaj qhov tsis zoo, txhais tau tias tsis muaj burrs thiab muaj peev xwm tsim ib txoj kab nkhaus tshwj xeeb (uas tuaj yeem sib txawv ntawm kab rau kab ntawm cov hniav). Kev tuav neeg hlau ntawm kev ua haujlwm ua ke nrog CNC cov txheej txheem ua haujlwm uas txo qis qhov cim tseg muab cov kev daws teeb meem zoo tshaj plaws kom tau raws li cov kev cai nruj no.

(5) Polyetheretherketone (PEEK) cob

Vim tias nws lub cev zoo, lub cev tsis muaj tshuaj lom, thiab kev sib haum xeeb hauv lub cev, PEEK tau siv dav hauv ntau yam lag luam xws li kev siv dav hlau thiab khoom siv kho mob. Txawm li cas los xij, ua tiav PEEK ntu feem ntau tawm ntawm cov plaub muag-burrs, thiab ntau lub tuam txhab pom tias nws nyuaj rau tshem tawm cov burrs no yam tsis cuam tshuam rau ntu ntu qhov kawg, qhov ntev, xim thiab lwm yam kev xav tau.

Patrick Byrne, tus muag khoom thiab tus thawj tswj kev lag luam rau Comco, cov chaw tsim khoom ntawm cov khoom siv txhuam cov khoom tawg, piav qhia tias thaum nws nyuaj rau kev nyab xeeb tshem tawm cov burrs los ntawm PEEK ntu nrog cov cuab yeej me me, micron-qhov muag mos abrasive tuaj yeem siv tshem PEEK burrs ntawm siab nrawm yam tsis cuam tshuam cov duab thiab qhov ua tiav ntawm qhov nyuaj. Cov txheej txheem kub hnyiab qis kuj tuaj yeem ua haujlwm tau zoo tshem tawm cov burrs sab nraud los ntawm qee qhov PEEK.


Daim duab 4 Tshem tawm cov burrs ntawm PEEK qhov chaw

(6) Teflon (polytetrafluoroethylene)

Teflon ntu zoo li muaj burrs uas nyuaj rau tshem tawm, uas hloov thaum lawv raug tshem tawm, thiab burrs uas khoov thaum lawv tau xuab zeb. Tus yuam sij rau tshem tawm cov burrs no yog siv cov cuab yeej ntse heev los yog ua kom khov ib feem ua ntej txiav lossis xuab zeb. Cov Teflon Khov khov yog qhov nyuaj dua thiab tuaj yeem tiv thaiv lossis txo qis qhov tsim thaum ua haujlwm. Tib txoj hauv kev siv rau ntau lwm yam khoom yas, tab sis thaum khov, qhov kub kom tsim nyog yuav tsum raug xaiv kom tsis txhob ua qhov puas.

(7) Xov

Thaum twgmachining xov, burrs tej zaum yuav raug tsim ntawm qhov nkag thiab tawm ntawm qhov xov. Cov kab no feem ntau yog nyob rau sab saum toj ntawm cov hniav xov thiab ntawm ntug ntawm qhov zawj. Burrs thaum pib thiab xaus ntawm cov xov yog tuab dua li cov nyob rau saum cov xov thiab nyob ntawm ntau lub dav hlau. Yog li ntawd, ib txoj hauv kev deburring feem ntau tsis muaj txiaj ntsig. Dov rau kev ua tiav cov txheej txheem tuaj yeem tshem qee qhov burr ntawm cov xov, tab sis tsis nyob rau sab saum toj ntawm xov.

Vim tias nws muaj peev xwm tshem tawm qee qhov ntawm cov burr, cov txheej txheem dov tseem siv dav, tab sis kev saib xyuas yuav tsum tau ua los tiv thaiv cov khib nyiab pov tseg los ntawm sab laug hauv cov xov zawj, uas tuaj yeem ua rau cuam tshuam thaum sib dhos. Phau ntawv deburring, deburring electrochemical thiab SurfTran thermal deburring cov txheej txheem tau ua haujlwm zoo rau txhua qhov xov xov.


Daim duab 5 Cov xov hauv qhov orifice yog qhov nquag ua rau tawg

Thaum twgdesigning parts to be more tolerant of burrs can also solve some problems. The thread rolling process can produce perfect burr-free threads. In addition, thread grinding is also effective in preventing larger burrs.

(8) Lub dav hlau tis qhov nqaj

Txhawm rau txhawm rau txo qhov hnyav ntawm lub dav hlau uas yuav ua rau nce nqi roj, ntau qhov txheej txheem ntawm lub dav hlau muaj cov lej uas tau ua tiav. Cov txheej txheem ua haujlwm feem ntau yog phab ntsa nyias, thiab ib qho khoov, khawb, lossis lwm yam tsis xws luag tuaj yeem ua rau qhov tsis ua tiav, vim tias cov ntu nyuab siab no yuav siv rau hauv lub dav hlau tau ntau caum xyoo, thiab lawv txoj kev nyab xeeb yuav tsum nruj heev. Qhov tseeb tias ntau qhov kev nqes hav yog qhov tob thiab tseem yuav muaj qhov xav tau siab rau cov phab ntsa saum npoo du ua rau deburring cov txheej txheem nyuaj.

Kev co polishing yog qhov txheej txheem siv deburring nquag, tab sis yuav tsum siv cov tshuab polishing loj dua. Txhuam deburring yog cov txheej txheem nyiam, uas txhuam cov burrs thaum lub chaw ua haujlwm raug kaw rau lub tshuab. Tus yuam sij rau tus txheej txheem yog xaiv cov txhuam txhuam cov duab uas tsim nyog, kos cov txhuam hniav, txhuam cov xaim ntev thiab ua cov txheej txheem.

(9) Cov khoom siv me me

Kev tsim cov khoom me me (xws li cov iav me me, cov hlua nyias nyias thiab cov phaj txav mus los) ib txwm yog qhov nyuaj, cov ntu no xav tau cov npoo tsis pub khawb hauv qab 30x lub tshuab tsom iav thiab lub ntsej muag du ntawm qhov tsis ntau tshaj 0.025 hli. niaj hnub no, cov khoom me me yuav tsum tau ua kom me dua, ua kom tuab dua, ua haujlwm ntau ntau los ntawm ob peb txog rau lab, thiab ntau yam khoom siv ua haujlwm yav dhau los uas tsis xav txog. Qhov me me qhov ntau thiab qhov ua tau zoo, tsis xav tau qhov zoo ntawm ntug, thiab kev sib tw ntawm kev ua cov txheej txheem qib siab titanium alloys, ua kom lub cim xeeb tsis zoo, thiab lwm yam khoom siv tshiab hauv cov hlau thiab yas ntxiv ua kom cov npoo tiav ntawm qhov me me.

Tshuaj deburring, electrolytic polishing, centrifugal roller tumbling thiab phau ntawv deburring siv tau rau ntau qhov me me, tab sis qee zaum, qhov kev daws teeb meem tsuas yog: txhawm rau tiv thaiv kev tsim cov burrs hauv thaj chaw uas deburring nyuaj tshaj plaws. Kev lag luam micro-stamping tej zaum yog qhov piv txwv zoo tshaj plaws ntawm kev siv cov txheej txheem ua tsis muaj burr. Cov kev daws teeb meem kuj tseem tau tsim los rau kev ua laser ntawm cov khoom me me, xws li tsis ua qhov khoob ntawm ntau cov ntaub ntawv nrog picosecond thiab femtosecond lasers. Ib yam li ntawd, cov thawj coj hauv kev lag luam microforming tau siv sijhawm ntau los ua qhov kev sim los kawm txog cov yam ntxwv ntawm cov kua hauv cov pwm me me thiab kom txo qis cov nplaim hluav taws tsim los ntawm cov khoom me me. Txawm hais tias flutter tuaj yeem tshem tawm sai nrog lub laser, kev cuam tshuam nrog ib feem flutter yuav siv sijhawm thiab nyiaj txiag uas tuaj yeem siv rau lwm qhov.

(10) Cov cuab yeej siv kho mob me me

Kev tsim khoom siv kho mob yog lwm thaj chaw uas xav tau deburring siab. Piv txwv li, tom qab laser ua cov hlab ntshav stents, "laser burrs" (cov hlau tawg pov tseg, kom raug) tuaj yeem ua tiav tshem tawm ntawm cov npoo ntawm stent los ntawm electrolytic polishing. Lwm yam cuab yeej siv kho mob uas yuav tsum tau cog rau hauv lub cev (xws li cov pob txha ntsia hlau, kho qhov txhab, lub tshuab ua kom lub zog thiab cov cuab yeej siv tshuaj tua kab mob) yuav tsum tsis pub muaj burrs txhawm rau tiv thaiv cov hlau tsis txhob poob rau hauv cov hlab ntshav thiab nkag mus rau hauv lub plawv, nrog rau khaus lossis txiav cov ntaub so ntswg ib puag ncig. Tom qab cov txheej txheem deburring, cov npoo ntawm lub cuab yeej yuav tsum tau phais thiab ntxuav kom huv. Txij li cov cuab yeej no lossis cov npoo tuaj yeem tsuas yog me dua li txoj kab uas hla ntawm tib neeg cov plaub hau, yuav tsum muaj kev tshuaj xyuas loj los txiav txim seb puas muaj burrs nyob.


Daim duab 6 Txhawm rau tiv thaiv cov hlau nkag los rau hauv cov hlab ntshav
Nws yog ib qho tseem ceeb kom ntseeg tau tias tib neeg kev cog qoob loo (piv txwv li, cov pob txha ntsia hlau hauv daim duab) tsis muaj qhov khawb

Ib qho ntxiv, cov cuab yeej siv phais me me muaj qhov xav tau nruj rau qhov ua tau zoo. Cov npoo ntawm cov cuab yeej phais yuav tsum yog kom meej, tiaj tus thiab tsis muaj burr, uas yuav tsum tau zoo kawg nkaus ua tiav ntawm cov npoo me me. Ib yam nkaus, cov kab mob thiab lwm yam kab mob yuav tsum raug tshem tawm ntawm qhov ntsuas qhov chaw.

Kev ua haujlwm deburring ntawm ib feem ntsib ntau yam kev nyuaj, tab sis txawm tias nyuaj tshaj plawsyuav tsum tau uatuaj yeem ntsib nrog cov txheej txheem deburring tsim nyog thiab cov cuab yeej.