Thaum koj hnov 'micro precision machining', cov duab tam sim no feem ntau ntawm pristine, chav tsis muaj plua plav thiab cov tshuab ua qhov me me tsis tuaj yeem. Qhov ntawd yog ib feem ntawm nws, tab sis zaj dab neeg tiag tiag yog nyob rau hauv kev sib tsoo - qhov tseeb. Nws tsawg dua txog qhov teev thiab ntau ntxiv txog qhov yuam kev uas koj tab tom tawm tsam thoob plaws txhua qhov haujlwm. Ntau lub khw hais tias lawv tuaj yeem ua tau vim tias lawv muaj CNC niaj hnub, tab sis tuav qhov tseeb ntawm qhov kev kam rau siab nyob rau hauv 5 microns ntawm ib qho nyuaj, hardened steel tivthaiv yog cov tsiaj nyaum sib txawv. Nws yog qhov chaw theoretical precision ua tau raws li qhov tseeb ntawm cov cuab yeej deflection, thermal drift, thiab cov khoom nco.
Lub Foundation: Nws pib nrog Casting
Koj tsis tuaj yeem tshuab precision rau hauv lub hauv paus tsis zoo. Qhov no yog ib zaj lus qhia uas nyuaj heev. Thaum ntxov, peb yuav tau txais peev castings los ntawm cov foundries dav, zoo nkauj nyob rau sab nraud, tab sis nrog inconsistent phab ntsa thickness los yog sab hauv shrinkage uas tsuas tshwm sim tom qab koj twb tau siv sij hawm nyob rau hauv lub fixture thiab thawj milling. Tag nrho cov txheej txheem yuav yog seem. Tias yog vim li cas kev tswj hwm tag nrho cov saw hlau yog tsis sib tham. Ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) muaj lub tswv yim zoo-kev koom ua ke lub plhaub thiab peev casting nrog lawv cov kev ua haujlwm machining. Thaum koj tau ua casting rau 30 xyoo, koj nkag siab yuav ua li cas cov qoob loo ntawm cov nickel-raws li alloy cov ntaub ntawv, thiab koj tuaj yeem taw qhia ib feem hauv pwm kom txo qis kev ntxhov siab tom qab. Qhov ntawd tsis yog ib yam uas koj tuaj yeem yuav xwb; nws yog ci-hauv kev paub.
Lawv tsom mus rau tshwj xeeb alloys, zoo li cobalt thiab nickel-based sawv daws yuav, yog qhia. Cov no tsis yog koj tus qauv txhuas ntawv nyiaj. Lawv tawv, abrasive, thiab kim. Kev sim micro precision machining ntawm lawv nrog cov txheej txheem txheej txheem yog ib txoj hauv kev nrawm rau cov cuab yeej puas thiab qhov tsis txaus siab. Lub pre-machining xeev ntawm casting yog qhov tseem ceeb. Cov tawv nqaij saum npoo, qhov seem ntawm qhov kev ntxhov siab los ntawm qhov txias - yog tias cov no tsis tau tswj hwm hauv qhov chaw tsim khoom, tus kws kho tshuab tau sib ntaus sib tua los ntawm kev txiav thawj zaug.
Kuv nco qab txog qhov project rau roj system tivthaiv hauv Inconel. Lub spec hu rau 0.8mm txoj kab uas hla hla lub qhov nrog ib tug positional kam rau ua ntawm ± 0.005mm. Peb tau txais cov peev txheej casting sab nraud, thiab nws zoo li zoo meej. Tab sis thaum lub sijhawm ua haujlwm drilling, micro-drill yuav taug kev mus tas li, puas tau me ntsis. Peb sim sib txawv pub, nrawm, txawm tias cov cuab yeej sib txawv. Qhov kev ua tsis tiav tau zoo ib yam. Lub hauv paus ua rau? Inconsistent cov ntaub ntawv ceev nyob rau hauv uas tej cheeb tsam ntawm lub casting los ntawm tus thawj txheej txheem. Zaj lus qhia yog kim: rau qhov tseeb micro-scale ua hauj lwm, lub tshuab thiab cov foundry yuav tsum hais tib yam lus. Qhov no yog qhov txiaj ntsig kev sib koom ua ke uas tus kws kho mob ib leeg muaj.
Lub Tshuab Cuab Yeej yog qhov pib xwb
Txhua leej txhua tus tau fixated ntawm lub tshuab. Yog lawm, koj xav tau lub siab-precision CNC nrog lub iav nplai cov lus tawm tswv yim, kev them nyiaj kub, thiab cov thav duab nruj. Tab sis qhov ntawd yog tus nqi nkag. Cov kev sib txawv tiag tiag feem ntau yog qhov tsis tshua muaj kev ntxim nyiam. Kev ua haujlwm, piv txwv li. Rau ib feem uas tej zaum 10 hli cubed, tus qauv vise yog tsis muaj txiaj ntsig. Koj xav tau kev cai, kinematic mounts lossis lub tshuab nqus tsev chucks tsim kom muaj kev cuam tshuam tsawg. Lub zog los ntawm clamping tau yooj yim distort qhov ntau dua li koj cov peev nyiaj kam rau tag nrho.
Ces muaj tooling. Off-the-shelf carbide kawg mills los ntawm ib phau ntawv yuav tsis txiav nws-pun npaj. Peb ua haujlwm nrog cov cuab yeej tshwj xeeb uas zom cov cuab yeej rau peb raws li qhov tshwj xeeb alloy thiab cov yam ntxwv. Lub 0.5mm pob qhov ntswg kawg zeb rau machining qhov hloov maj mam contour ntawm stainless hlau piv rau ib tug cam khwb cia hlau yog fundamentally sib txawv nyob rau hauv geometry thiab txheej. Koj tsim kev sib raug zoo nrog cov neeg muag khoom no; koj xa lawv cov qauv ntawm cov khoom, thiab lawv xa rov qab prototypes. Nws yog ib qho kev rov ua dua tshiab, ua haujlwm ntawm tes.
Kev khiav tawm ntawm lub coolant thiab nti yog qhov nyuaj heev ntawm qhov ntsuas no. Ib qho me me nti recut tuaj yeem snap lub cuab yeej micro. Peb tau tsiv mus rau lub siab-siab, los ntawm-spindle coolant systems tsis yog tsuas yog ua kom txias, tab sis feem ntau kom tawg cov microscopic chips tawm ntawm qhov chaw txiav. Nws suab yooj yim, tab sis hu rau hauv lub siab - txaus kom tshem tawm cov chips tab sis tsis txaus los deflect lub cuab tam los yog ib feem - yog ib hnub tsim nyog ntawm kev txiav txim siab thiab tshuaj xyuas nyob rau hauv lub tshuab tsom.
Kev ntsuas yog Tus Saib Xyuas
Qhov no yog qhov uas cov roj hmab tau raws txoj kev. Koj lub tshuab nyeem ntawv yuav hais tias nws nyob ntawm X0.000, Y0.000, tab sis nws puas tiag? Rau micro precision machining, nyob rau hauv-txoj kev soj ntsuam yog pab tau tab sis tsis meej. Qhov kawg validation tshwm sim tawm ntawm lub tshuab, nyob rau hauv ib tug climate-tswj metrology chav tsev. Peb tab tom tham txog kev sib koom tes ntsuas tshuab (CMM) nrog cov ntsuas ntsuas qhov ntsuas uas muaj qhov taub ntawm 0.3mm lossis txawm tias kho qhov muag / yees duab rau kev ntsuas tsis sib cuag ntawm cov yam ntxwv tsis yooj yim.
Cov ntaub ntawv qhia zaj dab neeg. Koj tsis yog tab tom nrhiav kev hla / poob. Koj tab tom saib cov txheej txheem kev tswj xyuas kev txheeb cais (SPC) kab kos. Puas muaj ib qho drift nyob rau hauv txoj kab uas hla ntawm lub bore li lub tshuab ua kom sov li 4-teev batch khiav? Puas yog qhov chaw ua tiav ntawm qhov flank ntawm micro-gear hniav zoo ib yam, lossis nws puas pom cov cim ntawm cov cuab yeej hnav pib ntawm tus lej 50 tawm ntawm 100? Daim ntawv qhia kev ntsuas tsis yog daim ntawv pov thawj xwb; nws yog cov cuab yeej kuaj mob rau tag nrho cov txheej txheem.
Kuv tau pom qhov zoo nkauj tsis zoo vim tias qhov ntsuas kev ntsuas tsis raug. Ntsuas 1mm feature nrog 1mm sojntsuam taub yog qhov tsis muaj ntsiab lus - koj tab tom ntsuas qhov ntsuas, tsis yog qhov. Koj yuav tsum muaj txoj cai loj metrology rau qhov tshwj xeeb, uas feem ntau txhais tau hais tias kev nqis peev hauv ib qho ntawm cov kev tshawb fawb tshwj xeeb thiab cov khoom siv. Nws yog ib qho tseem ceeb peev thiab kev paub peev uas ntau lub khw muag khoom.
Human Factor thiab Iterative Failure
Automation zoo heev, tab sis daim teb no tseem vam khom rau tus kws tshaj lij txoj kev xav. Tus programmer tuaj yeem simulate txhua yam lawv xav tau, tab sis tus neeg teeb tsa txoj haujlwm hnov qhov txiav. Ib qho kev hloov ntawm lub suab - ib qho me ntsis siab zaus sib haum xeeb - tuaj yeem yog thawj lub cim ntawm cov cuab yeej sib tham lossis hnav ntev ua ntej nws tshwm sim ntawm ntu. Qhov no tactile, auditory tawm tswv yim voj yog irreplaceable. Yog vim li cas koj thiaj yuav pom cov kws paub txog kev siv tshuab leaning ze ntawm lub tshuab, mloog, tsis yog saib lub vijtsam xwb.
Ua tsis tiav yog tus kws qhia zoo tshaj plaws, muab koj ntsuas nws. Peb tau khiav ntawm me me titanium connectors qhov twg peb tsis tuaj yeem tuav lub perpendicularity ntawm ob bores. Lub tshuab tau calibrated, lub cuab yeej yog tshiab. Peb tau siv hnub los tshuaj xyuas txhua yam. Tus neeg ua txhaum tau dhau los ua qhov tsis txaus ntseeg ntawm kev ua si hauv cov cuab yeej tuav lub pob qhov rooj-tej zaum ob peb microns. Raws li ib txwm machining, nws tsis cuam tshuam. Raws li qhov tshwj xeeb radial rog ntawm qhov kev ua haujlwm micro-drilling, nws tau qhia tsuas yog txaus los tua cov kev kam rau siab. Tam sim no peb muaj nyias lub sijhawm saib xyuas thiab tshuaj xyuas rau cov cuab yeej siv hauv micro-ua haujlwm.
Qhov kev xav rov hais dua, daws teeb meem no yog qhov cais lub khw ua haujlwm los ntawm tus khub precision. Nws tsis yog hais txog kev muaj lub tshuab ua khawv koob; Nws yog hais txog kev tsim cov ntaub ntawv, cov txheej txheem ua kom zoo rau cov khoom siv tshwj xeeb thiab cov duab geometry. Qhov no yog qhov chaw ua haujlwm vertically integrated qhia nws lub zog. Yog tias muaj teeb meem tshwm sim hauv machining, lawv tuaj yeem taug qab nws rov qab mus rau qhov kub ntau ntawm cov khoom siv raw lossis qhov kub ntawm qhov casting ntawm tus khub zoo li QSY, thiab kho cov txheej txheem pem hauv ntej kom haum. Cov lus teb lub voj voog no muaj zog heev.
Qhov twg tag nrho cov no coj: Real-World Demands
Yog li qhov twg yog qhov tsis txaus ntseeg thawb rau micro-precision tiag tiag siv? Nws tsis yog qhov xav paub hauv lab xwb. Nws yog nyob rau hauv kev kho mob teb: orthopedic implants nrog ntxeem tau nto rau pob txha ingrowth, qhov twg txhua qhov pore me me yuav tsum nyob rau hauv spec. Nws yog nyob rau hauv aerospace: roj injector nozzles rau turbines, qhov twg cov yam ntxwv ntws yog dictated los ntawm geometry machined rau hauv incredibly nyuaj alloys. Ib qho kev sib txawv ntawm ob peb microns hloov cov qauv tshuaj tsuag, qhov ua tau zoo, cov emissions.
Qhov kev thov yog kom muaj ntau qhov nyuaj hauv cov hnab ntawv me. Ib qho kev sib xyaw ua ke tuaj yeem ua ke micro-milling, tig, drilling, thiab txawm tias EDM (Electrical Discharge Machining) nta. Qhov no thawb qhov kev sib tw logistical ntawm fixturing thiab datum alignment mus rau qhov kawg. Yuav ua li cas koj tuav ib feem rau tshuab nws thib tsib yam tsis distorting cov yam ntxwv koj twb muab tso rau thawj plaub? Feem ntau, cov kev daws teeb meem yog kev cai fixture uas dhau los ua ib feem ntawm nws txoj cai.
Saib ntawm tus kws kho mob lub peev xwm, tam sim no koj paub tias yuav nrhiav dab tsi dhau ntawm daim ntawv qhia. Tsis txhob nug seb lawv puas muaj 5-axis micromachining chaw. Nug txog lawv cov cuab yeej ntsuas ntsuas rau qhov qis dua 10mm. Nug seb lawv ua haujlwm li cas rau cov phab ntsa nyias nyias. Nug rau lawv qhov kev paub nrog cov alloy tshwj xeeb uas koj xav tau, yog nws tsis yog los ntawm QSY's txheem Tshuag los yog kev cai cobalt-chrome mix. Cov lus teb rau cov lus nug no yuav qhia rau koj yog tias lawv nkag siab txog kev sib tsoo, lossis yog tias lawv tsuas yog caij lub buzzword. Muaj tseeb micro precision machining yog ib qho kev qhuab qhia holistic, kev sib yuav ntawm cov ntaub ntawv science, mechanical engineering, thiab xyaum, tus neeg mob kev txawj ntse.
