Hais txog cov xwm txheej txheej txheem ntawm cov hlau hloov ceev, nruab nrab ntawm cov hlau hloov thiab qeeb qeeb xaim

Nrog rau kev txhim kho ntawm science thiab thev naus laus zis, kev siv tshuab ua tshuab tau dhau los ntawm kev hloov pauv ntau: Raws li lub koom txoos cov kev xav tau ntawm cov khoom lag luam muaj zog dua, cov kev faib ua feem ntawm ntau hom, nruab nrab thiab pob khoom me me tau nce ntau. Kev siv cov khoom qub zoo li qub rau nruab nrab-xaim hlau txiav tshuab cov cuab yeej tau nyuaj rau qhov ua tau zoo, ua haujlwm tau zoo, thiab ua cov txheej txheem sib txawv. Daim ntawv thov ntawm cov tshuab thev naus laus zis luv luv lub sijhawm npaj ntawm kev siv tshuab, thiab tsis tu ncua txhim kho qib automation ntawm tag nrho cov txheej txheem ntawm kev siv tshuab. Nyob rau tib lub sijhawm, nws tseem ua kom muaj peev xwm ntawm txoj kev tsim khoom lag luam kom hloov mus rau kev hloov pauv ntawm ntau yam kev ua haujlwm.

Cov tshuab hlau txiav tshuab tau muab faib ua: cov hlau nruab nrab, hlau qeeb, thiab cov hlau nrawm txhua xa mus rau EDM hlau txiav tshuab cuab yeej. Cov kav hlau txiav hluav taws xob tso tawm tshuab (WEDM).

1. Dab tsi yog nruab nrab-ceev Hlau txiav Cov Hluav Taws Xob Xa Cov Hluav Taws Xob? Nruab nrab-ceev hlau txiav Hluav Taws Xob Xa Cov Hluav Taws Xob (Nruab Nrab-Hlau Hluav Taws Xob Txiav Hluav Taws Xob Xa Cov Hluav Taws Xob Chaw Tsim Hluav Taws Xob raws li MS-WEDM) belongs rau cov qeb ntawm rov ua dua high-speed hlau-txav EDM hlau txiav tshuab. Qhov ntau qhov kev ua haujlwm tau lees paub rau lub tshuab hluav taws xob hlau tsis sib cais tshuab, uas feem ntau hu ua" nruab nrab cov xov hlau txiav" ;. Qhov nruab nrab xaim thev naus laus zis taw qhia ntawm no tias qhov hu ua "xov hlau nruab nrab" tsis txhais tau hais tias lub xaim xov hluav taws xob yog ntawm qhov siab thiab tsawg tus ceev, tab sis lub tshuab hluav taws xob xov hlau txiav tshuab, uas yog, lub hauv paus ntsiab lus ntawm xaim noj yog siv kom siab ceev (8-12m) thaum siv lub tshuab ntxhib. / s) Kev pub hlau, tsis tshua muaj kev ceev ceev (1-3m / s) xaim xaim siv thaum lub sijhawm ua tiav, yog li cov haujlwm ua haujlwm kuj ruaj khov, lub khib me me, thiab qhov yuam kev tshwm sim los ntawm cov khoom deformation thiab molybdenum xaim poob yog txo los ntawm ntau kev txiav, kom cov kev ua haujlwm zoo kuj tau txhim kho. Tus neeg txhim kho kom zoo, cov txheej txheem ua tau zoo tuaj yeem nyob nruab nrab ntawm lub tshuab hluav taws xob high-speed hlau thiab lub tshuab hlau xov hluav taws xob qis. Yog li ntawd, nws tuaj yeem hais tias dab tsi cov neeg siv hu" nruab nrab xaim pub" yog qhov tau txais qhov hlau me EDM hlau txiav tshuab qiv qee cov txheej txheem thev naus laus zis ntawm lub tshuab hluav taws xob qis, thiab ua kom tiav qhov txiav tsis pub hla thiab txiav ntau yam. Hauv kev coj ua, nruab nrab cov xaim thev naus laus zis tau xaus tias thawj kev txiav ua haujlwm hauv ntau txoj kev txiav yog feem ntau kev kub ceev thiab txiav txiav ruaj khov. High-ncov tam sim no thiab ntev dua ntawm cov mem tes dav dav siv tau rau kev txiav tawm tam sim no kom tau txais kev txiav ntau dua. nrawm. Txoj haujlwm ntawm kev txiav thib ob yog ua kom zoo kom paub tseeb tias qhov ntsuas ntawm qhov ntsuas ntawm qhov raug. Ib qho nruab nrab tus qauv tuaj yeem siv los ua qhov roughness Ra tom qab kev txiav ob ntawm 1.4 thiab 1.7 μm. Yuav kom ua tiav lub hom phiaj ntawm kev ua tiav, kev noj zaub mov qis-xaim feem ntau yog siv, cov hlau pub noj ceev yog 1 ～ 3m / s, thiab kev taug qab kev pub zaub mov tau pub tsawg rau qee qhov kev txwv kom tshem tawm cov txiaj ntsig txiav cov kab thiab tau txais qhov uas yuav tsum tau ua machining qhov tseeb raug. Cov. Cov haujlwm ntawm qhov thib peb, plaub lossis ntau tshaj kev txiav (tam sim no nruab nrab xaim tswj software tuaj yeem ua tiav txog xya qhov kev txiav) yog polishing thiab polishing. Qhov tsawg kawg nkaus ntawm lub plawv dhia dav dav (tam sim no tsawg kawg nkaus zaus tuaj yeem muab faib rau 1μs) yog siv rau polishing. Txawm li cas los xij, lub ncov tam sim no sib txawv nrog qhov zoo ntawm qhov xav tau ntawm qhov machined nto. Qhov tseeb, kev ua tiav yog ib hom hluav taws xob sib tsoo. Cov xov hlau txav tau txoj kev tuaj yeem txais lub qes qis-txav hluav taws xob qis-txav ceev-pub mis noj ib yam li kev txiav ob. Thaum lub sij hawm ua tiav ntawm cov khoom nruab nrab cov hlau, nws yog qhov yuav tsum tau them sai sai rau kev kho deformation rau ntau qhov kev txiav, vim hais tias thaum lub chaw ua haujlwm raug txiav on-line, nrog cov txiaj ntsig ntawm thawj qhov kev nyuab siab sab hauv thiab kev ua haujlwm thermal kev nyuaj siab los ntawm lub txim kev tshem tawm, nws yuav tsim cov khoom tsis yog qhov tsis xws luag, Kev txiav txim siab tsis zoo yuav ua rau cov tuab tsis sib xws hauv kev txiav tom qab, uas cuam tshuam rau kev ua haujlwm zoo thiab raug. Yog li ntawd, nws yog qhov tsim nyog yuav tsum tau tseg cov txheej txheem sib txawv ntawm cov tshuab ua kom sib txawv raws li cov ntaub ntawv sib txawv, kom lub chaw ua haujlwm tuaj yeem tso tawm sab hauv kev ntxhov siab thiab torsion deformation tag nrho, thiab tuaj yeem muaj npoo txaus rau cov txiav rau tom ntej ntau cov kev txiav, kom qhov kawg loj ntawm cov haujlwm workpiece tuaj yeem lav.

2. Cov hlau nrawm yog ib hom hlau EDM, tseem hu ua cov xov tooj high-speed hlau EDM (WEDM-HS). Lub tshuab hluav taws xob xaim (feem ntau molybdenum hlau) yog siv rau qhov ua kom muaj qhov sib txawv ntawm cov lus tsa suab siab, thiab cov xaim hluav taws xob yog 8-10m. / s, cov hlau electrode tuaj yeem siv rov qab siv dua, kev ua kom nrawm yog qhov siab, thiab cov hlau yog ib qho yooj yim uas ua rau cov hlau electrode ua jitter thiab nres thaum thim rov qab, uas txo cov kev ua haujlwm zoo. Nws yog hom tseem ceeb ntawm kev tsim khoom thiab siv hauv kuv lub teb chaws, thiab nws yog thawj lub xov hlau EDM hauv kuv lub teb chaws. Hom kev ua. Xyoo 1960, Soviet Union thawj zaug tsim lub tshuab hlau hlau ntuag cov tshuab txiav. Tuam Tshoj tseem tsim cov cuab yeej tshuab zoo sib xws hauv xyoo 1961. Thaum ntxov xaim hlau txiav tshuab cuab yeej siv hluav taws xob profiling los tswj kev txiav kev sib tshuam. Lub sijhawm ntawd, vim muaj kev txiav tawm ntawm qis, nws nyuaj rau kev tsim cov qauv tswv, thiab nws tsuas yog siv rau kev ua cov nqaim nqaim uas nyuaj los daws los ntawm lwm cov txheej txheem hauv kev lag luam hluav taws xob. Xyoo 1966, Tuam Tshoj ua tiav lub siab nrawm hlau xaim txiav tshuab cuab tam siv emulsion thiab lub tshuab xaim hluav taws xob nrawm, thiab ua tiav kev ua tiav digital tswj thiab photoelectric nrhiav kev tswj tshuab. Txij thaum ntawd los, nrog txoj kev txhim kho txuas ntxiv ntawm cov mem tes fais fab mov thiab digital tswj tshuab thiab siv ntawm ntau cov txheej txheem txiav, qhov txiav ceev thiab kev ua tiav raug tau zoo heev.

3. Dab tsi yog hlau qeeb tshuab txiav tshuab? Lub tshuab hluav taws xob xaim ntawm lub tshuab hluav taws xob qis qis siv cov tooj liab hlau ua cov cuab yeej hluav taws xob. Feem ntau, nws txav mus rau ib qho kev taw qhia ntawm kev nrawm tsawg dua 0.2m / s, thiab siv 60 ~ nruab nrab ntawm cov xaim tooj liab thiab cov khoom ua haujlwm xws li tooj liab, hlau lossis super-hard alloy. Cov mem tes voltage ntawm 300V thiab qhov sib txawv ntawm 5-50um yuav tsum tau tswj hwm. Qhov sib txawv yog ntim nrog cov xov xwm insulating xws li dej deionized (ze rau dej distilled), yog li ntawd cov dej paug tawm ntawm qhov hluav taws xob thiab lub workpiece, uas tau noj thiab corroded los ntawm txhua lwm yam, thiab hluav taws xob yog thov rau saum npoo ntawm lub workpiece. Ntau lub qhov me me me yaig. Los ntawm kev tshuaj xyuas thiab kev tswj ntawm NC tswj thiab kev ua tiav ntawm servo mechanism, qhov kev tawm ntawm lub cev no tsis sib xws thiab zoo ib yam, kom cov khoom tiav tau ua tiav, ua nws cov khoom uas ua tau raws li qhov yuav tsum muaj qhov loj me thiab cov qauv duab. Tam sim no, qhov tseeb tuaj yeem ncav cuag 0.001mm, thiab thaj chaw zoo yog ze rau theem sib tsoo. Cov hlau hluav taws xob tsis siv ntxiv tom qab tso tawm, thiab siv cov hluav taws xob tsis tiv thaiv hluav taws xob tiv thaiv hluav taws xob, feem ntau nrog cov xov hlau tsis siv neeg thiab cov cuab yeej tsis sib xws. Cov haujlwm ua haujlwm ruaj khov, tsis txawv txav, me me jitter, ua haujlwm siab, thiab qhov zoo ntawm lub ntsej muag, tab sis nws tsis haum rau kev ua cov txheej txheem loj tuab. Vim cov qauv qhia meej ntawm lub tshuab cuab yeej, cov cuab yeej ua haujlwm siab thiab tus nqi siab ntawm cov cuab yeej siv tshuab, kev siv tus nqi kuj tseem siab. Lub sijhawm thaum ntxov, ib-txoj kev hlau EDM xaim-tshuab ua cov cuab yeej tau tshwj xeeb rau cov tuam txhab txawv teb chaws. Txawm hais tias Taiwan' s qis-ceev hlau EDM xaim-tshuab txiav tau pib qeeb, nws tau tsim kho sai sai rau xyoo tas los no. Ib qho ntawm nws txoj kev ntsuas tseem ceeb yog los sib koom ua ke tsim cov kev siv tshuab hluav taws xob tseem ceeb los ntawm tus xov tooj ntawm cov khoom siv hauv tsev ua tshuab cuab tam cov tuam txhab tsim khoom, thiab nrog kev txhawb nqa tsawg los ntawm cov tuam tsev muaj feem, Taiwan koom nrog kev lag luam thev naus laus zis tau nqis peev ntau thiab cov khoom siv hauv kev txhim kho ntawm cov thev naus laus zis tseem ceeb. Tom qab ntau tshaj 10 xyoo ntawm kev tshawb fawb, kev ua kom pom tseeb tau tsim hauv cov thev naus laus zis tseem ceeb xws li kev tswj cov tshuab thiab cov khoom siv fais fab. Lub tshuab qis qis qis hlau txav EDM tsim los ntawm ntau lub tuam txhab Taiwanese yuav tsum tam sim no nyob hauv cov khoom nruab nrab ntawm nruab nrab. Hauv 3 lub xyoos dhau los, nws yuav nce qhov kev loj hlob txhua xyoo ntawm 20% mus rau 30%. Nws kwv yees hais tias nyob rau 5 xyoo tom ntej no, Taiwan lub suab qis xaim hluav taws xob hloov xaim EDM yuav yog Kev tsim tawm txhua xyoo tuaj yeem ncav cuag 2,000 units, uas tuaj yeem suav ntau dua 25% ntawm lub ntiaj teb ua lag luam. Qhov qis qis hlau EDM hlau txiav tshuab muaj cov txheej txheem ua haujlwm siab, kev ua lag luam muaj txiaj ntsig zoo, thiab siab xa rov qab. Nws yog" qhov chaw ntawm kev sib tw" thiab" tus tswv yim hauv av siab" rau tag nrho cov tuam ntxhab hauv hluav taws xob machining kev lag luam. Nws tseem tuaj yeem hais tias leej twg tau tshaj lij kev siv thev naus laus zis ntawm kev ua haujlwm qis qis hlau hlau EDM yuav muaj lub sijhawm zoo rau cov kauj ruam tom ntej ntawm kev txhim kho kev lag luam thiab kev loj hlob. Txhawm rau txeeb lub Tuam Tshoj ua lag luam, hluav taws xob machining tshuab cuab tam cov tuam ntxhab hauv Nyiv, Switzerland, thiab Taiwan teeb tsa cov chaw tsim khoom hauv Suav teb loj los tsim cov cuab yeej siv tshuab no. Nrog kev txhawb nqa ntawm cov peev nyiaj tshwj xeeb ntawm Ministry of Science thiab Technology, peb lub teb chaws cov neeg ua haujlwm science thiab technology tau nqis peev ntau ntawm kev tshawb fawb thiab kev ua haujlwm lub zog, thiab tau ua tiav cov kev tshawb fawb thiab kev loj hlob ntawm ib tiam tshiab ntawm cov hluav taws xob qis hlau EDM hlau. txiav tshuab, thiab tau ua kom loj dua kev sib tsoo. Tam sim no lawv muaj cov cai ywj pheej ntawm cov tswv cuab. Cov khoom lag luam tau tuav qee lub khw muag khoom, thiab nws qhov ntsuas qhov ua tau zoo tuaj yeem ncav cuag qhov nruab nrab ntawm lub tshuab nruab nrab. Tam sim no, qee cov tuam txhab domestic cia siab los tsim kho cov xov hlau qis EDM hlau txiav tshuab los ntawm kev koom tes nrog cov tuam txhab hauv Taiwan.

Piv nrog rau ib-txoj kab hluav taws xob qis EDM hlau xov tshuab txiav tshuab, thev ntsuas cov txheej txheem high-speed hlau EDM xaim-txiav tshuab tseem muaj qhov sib txawv loj hauv nruab nrab cov khoom lag luam, txiav qhov tseeb thiab qhov saum npoo thiab lwm yam tseem ceeb kev ntsuas. Teb rau cov qhov khoob, thaum pib ntawm lub xyoo pua no, ntau lub tuam txhab tsim khoom ntawm high-speed reciprocating hlau EDM hlau txiav tshuab pom tau hais ntau yam kev txiav ntawm cov tshuab siab hlau siab (hom tshuab cuab yeej no feem ntau hu ua" Nruab Nrab Kev ceev xov hlau txiav" Hluav Taws Xob Xa Cov Hluav Taws Xob). Cov npe" nruab nrab hlau" tsis txhais tau hais tias lub xaim ceev yog nruab nrab ntawm kev kub ceev thiab qis nrawm, tab sis kev sib xyaw hlau hlau ua tshuab. Lub ntsiab lus xaim hlau yog siv 8-12m / s high-speed hlau thaum lub tshuab ntxhib thiab siv cov khoom zoo. 1-3m / s qis-ceev xaim taug kev, kom qhov kev ua haujlwm yog qhov ruaj khov, nrog me ntsis jitter, thiab qhov yuam kev tshwm sim los ntawm cov khoom deformation thiab molybdenum xaim poob yog txo los ntawm ntau txoj kev txiav, kom qhov kev ua haujlwm zoo kuj raug txhim kho, thiab kev ua haujlwm zoo tuaj yeem nyob rau hauv lub tshuab xaim hluav taws xob high-speed. Nruab nrab ntawm thiab qis-ceev xov hlau tshuab. Yog li ntawd, nws tuaj yeem hais tias dab tsi cov neeg siv hu" nruab nrab xaim pub" yog qhov tau txais qhov hlau me EDM hlau txiav tshuab qiv qee cov txheej txheem thev naus laus zis ntawm lub tshuab hluav taws xob qis, thiab ua kom tiav qhov txiav tsis pub hla thiab txiav ntau yam. Tom qab ob peb xyoos ntawm txoj kev loj hlob, yuav luag txhua tus neeg tsim khoom hauv high-speed hlau EDM hlau-txiav tshuab cuab yeej yog xaim-txiav hauv ntau lawm thiab muag khoom, tab sis nws hloov tawm tias tsis yog txhua qhov kev xa rov qab EDM hlau-txiav tshuab tuaj yeem ua ntau yam kev txiav. Hauv lwm lo lus, tsis yog txhua qhov kev them nyiaj hlau EDM hlau txiav tshuab tuaj yeem ua tiav cov txiaj ntsig zoo tom qab siv ntau hom kev txiav. Txuj kev ncab ntau yog ib qho txuj ci thev naus laus zis. Nws koom nrog CNC precision ntawm lub tshuab cuab tam, mem tes lub zog muab hluav taws xob, cov txheej txheem cov ntaub ntawv, cov tshuab xaim hluav taws xob, kev ua haujlwm ntawm cov dej, thiab cov teeb meem muaj ntau. Nws tsis yog yooj yim ntxiv qhov teeb rau lub tshuab hluav taws xob high-speed hlau noj tshuab. Nws muaj peev xwm pom tau hais los ntawm cov hlau thauj zaus hloov pauv hloov ceev ceev system. Tsuas yog cov tau txais nyiaj hlau EDM hlau txiav tshuab nrog cov ua haujlwm siab thiab tsim ntau yam kev txiav txim siab nyob rau ntau qhov chaw tuaj yeem ua ntau yam kev txiav thiab tsis txiav, thiab tau txais cov txiaj ntsig zoo kawg. Cov txheej txheem nyhuv. Yog li, peb cov chaw tsim khoom tsim khoom yuav tsum tau them tag nrho cov teeb meem no, thiab yuav tsum ua nws raws li qhov system engineering, tiag tiag siv cov cuab yeej no, thiab ua kom cov khoom no ua txoj haujlwm zoo. Piv txwv, txhawm rau txhawm rau txhim kho qhov tseeb ntawm lub cuab tam lub tshuab nws tus kheej, qee cov tuam txhab tau tsim DC lossis AC servo lub cev muaj zog raws li cov khoom siv tsav kom ncaj qha tsav lub pob ntsia hlau. Nyob rau tib lub sijhawm, nws tau saws lub kaw tag nrho lub voj kev tswj nrog lub suab them nuj nqi, uas tuaj yeem tswj tau los ntawm kev siv zauv. Lub kaw lus them nyiaj thiab kho kho qhov chaw muab qhov raug qhov yuam kev ntawm lub tshuab cuab yeej. Ntawm qhov tseeb tias ua kom paub tseeb, txo qhov txo qis ntawm kev siv lub tshuab raug los ntawm kev siv lub sijhawm ntev thiab txuas ntxiv lub neej kev pab cuam ntawm lub tshuab cuab tam. Lub tshuab thauj xaim siv cov hluav taws xob tshwj xeeb (feem ntau pob zeb diamond) cov kab hluav taws xob hlau xaim hluav taws xob kom cov hluav taws xob hlau hluav taws xob kuj nyob ruaj khov thiab txo qhov nro hloov ntawm cov hlau electrode thaum ua kev ua haujlwm. Lub kaw lus txias hloov cov kev siv hluav taws xob ntau ntawm cov qauv txias, siv cov kev sib txuam ntau theem thiab tswj cov qhov tseem ceeb xws li dielectric tas li kom paub meej qhov kev vam meej ntawm kev ua tiav. Cov tswj hwm software muab cov txheej txheem qhib ua haujlwm parameter, thiab cov coj ua tsis tau tuaj yeem xaiv tau raws li cov ntaub ntawv ntawm cov khoom siv, tuab, roughness thiab lwm yam mob. Kuv ntseeg tias dhau ntawm peb cov kev siv zog, ntau yam kev siv tshuab yuav zoo dua qub, thiab cov hlau reciprocating hlau EDM hlau txiav tshuab tseem yuav zoo dua thov thiab tsim.

Tom qab lub xov hlau reciprocating hlau EDM siv ntau lub tshuab txiav, txawm hais tias kev ua haujlwm tau zoo dua, nws tseem nyob ntawm cov qeb ntawm kev kub ceev hlau EDM, thiab cov txiav kom raug thiab smoothness tseem muaj ntau dua li cov uas tsis muaj lub tshuab hluav taws xob hlau tsawg. Cov. Qhov sib txawv, thiab khaws cia ntawm qhov ua tiav thiab ua tiav xav tau kev txhim kho ntxiv." Nruab Nrab Hlau tshuab" muaj cov yam ntxwv ntawm cov qauv yooj yim, qis tus nqi thiab qis noj, yog li nws tseem muaj chaw rau kev ciaj sia. Cov qauv tam sim no tseem yog tus qauv uas tsim nyog ntawm kev siv lub tshuab siab xaim hlau. Yog li ntawd, cov chaw tsim khoom lag luam yuav tsum tshaj tawm rau cov neeg siv Khoom Siv, Peb yuav tsum nrhiav qhov tseeb ntawm cov lus tseeb.