Nyob rau hauv precision CNC milling, "post-processing" yog ntau tshaj li ib qho kev ua tiav cov kauj ruam- nws yog ib tug systematic engineering workflow aimed ntawm comprehensively txhim kho ib feem ntawm qhov tseeb, nto kev ncaj ncees, kev pab cuam, thiab ntev - lub sij hawm stability. Ib txoj hauv kev zoo tshaj plaws - cov phiaj xwm ua tiav yuav tsum raug xaiv raws li cov khoom siv, qib siab, qhov xav tau zoo ntawm qhov chaw, thiab ib puag ncig kev pabcuam, thiab ib qho yuav tsum zam qhov tsis txaus ntseeg ntawm "tseem ceeb rau kev ua haujlwm thaum tsis saib xyuas tom qab- kho."
1. Deburring thiab ntug tiav
Burs tsim nyob rau hauv CNC milling feem ntau tshwm sim ntawm cov npoo sab nraud, hla - qhov kev sib tshuam, cov ces kaum, thiab xov nkag. Yog tias tsis kho, lawv tuaj yeem ua rau muaj kev cuam tshuam los ntawm kev sib dhos, kev ntxhov siab, kev txiav tus neeg teb xov tooj, thiab txawm tias muaj kev sib kis ntawm cov cuab yeej precision sab hauv. Cov txheej txheem deburring feem ntau suav nrog phau ntawv deburring (siv cov ntaub ntawv, scrapers, pob zeb, los yog cov cuab yeej teb), uas yog tsim rau me me -batch, complex-geometry, los yog cov qauv qauv; mechanical deburring (xws li vibratory xov, chim tumbling, thiab txhuam hniav sib tsoo), uas muab cov ntug zoo ib yam thiab zoo - haum rau batch ntau lawm; thiab thermal deburring, uas siv tswj combustion siab kom tshem tawm me me burs nyob rau hauv lub sab hauv, tshwj xeeb yog siv rau qhov chaw nrog complex sab hauv, xws li hydraulic valve lub cev thiab roj injector nozzles.
2. Precision nto sib tsoo
Rau qhov chaw nrog micron- theem kam rau ua, kev sib tsoo feem ntau yog siv tom qab milling los txhim kho qhov tseeb thiab qhov zoo. Qhov tseeb qhov tseeb tom qab milling yog ± 0.02-0.05 hli, uas tuaj yeem txhim kho rau ± 0.002-0.01 hli tom qab sib tsoo; nto roughness yog txo los ntawm Ra 1.6-3.2 μm rau Ra 0.1-0.8 μm; thiab flatness yog nce los ntawm ib tug nruab nrab mus rau ib tug siab - qib precision. Cov txheej txheem no feem ntau yog siv rau pwm inserts, precision fixtures, bearing vaj tse, thiab qhia rails, thiab zoo tshem tawm cov cuab yeej cim, cua sov{12}} cuam tshuam cov txheej, thiab me machining yuam kev.
3. Polishing thiab Superfinishing
Thaum ib feem zoo li los yog kev sib txhuam kev ua tau zoo dhau los ua qhov tseem ceeb, polishing yog qhov tseem ceeb. Kev siv tshuab polishing, siv cov hlua khi, polishing log, lossis pob zeb diamond pastes, tuaj yeem ua tiav daim iav-zoo li tiav thiab txo kev sib txhuam, thiab feem ntau siv rau cov hlau tsis muaj steel, aluminium alloy, thiab tooj liab alloy. Electropolishing, txheej txheem electrochemical, txhim kho corrosion kuj thiab txo cov kab mob adhesion los ntawm kev tshem tawm cov microscopic nto protrusions, ua rau nws tshwj xeeb tshaj yog haum rau sab hauv thiab sab nrauv kho deg ntawm cov khoom siv semiconductor thiab khoom noj khoom haus- ua tshuab.
4. Kev kho deg Hardening
Rau cov khoom uas raug hnav, cuam tshuam, lossis hloov pauv, kev tshaj tawm - yuav tsum tau ua los hloov kho cov txheej txheem saum npoo av. Kev kho cua sov (xws li quenching, tempering, thiab aging) ua kom muaj zog, qaug zog, thiab qhov ruaj khov. Hauv kev xyaum ua haujlwm engineering, cov kab ke raug ua raws li "nrawm milling → kho cua sov → tiav milling / sib tsoo" kom tsis txhob txiav ncaj qha rau ntawm cov khoom tawv.
5. Txheej thiab tiv thaiv nto
Aluminium qhov chaw feem ntau undergo anodizing, dav siv nyob rau hauv aerospace Cheebtsam, cov neeg siv khoom electronics vaj tse, thiab precision enclosures, uas tsis tsuas yog txhim kho corrosion thiab hnav tsis kam, tab sis kuj muab ntau yam xim zoo nkauj. Electroplating (xws li npib tsib xee plating, chrome plating, lossis electroless npib tsib xee plating) txhim kho hardness, txo kev sib txhuam coefficient, thiab txhawb kev tiv thaiv corrosion. Tsis tas li ntawd, PVD txheej yog siv rau kev txiav cov cuab yeej thiab siab - hnav cov khoom ua tau zoo, tsim cov txheej txheej tawv tawv heev uas ua rau muaj txiaj ntsig zoo dua qub.
6. Kev Nyuaj Siab Kev Nyuaj Siab thiab Dimensional Stabilization
Residual stresses originate los ntawm kev txiav cov cua sov, tshem tawm cov khoom sai, thiab txiav quab yuam, thiab tej zaum yuav ua rau tom qab distortion. Cov hau kev rau kev ntxhov siab xws li kev laus laus (kev ntxhov siab qeeb los ntawm kev cia, txawm hais tias muaj lub voj voog ntev), thermal stress relief (tswj cua sov thiab txias txias kom txo cov kev ntxhov siab sab hauv), thiab kev kho cryogenic (siv cov kub qis los hloov cov austenite ruaj khov thiab txhim kho seem stability). Cov kev ntsuas no yog qhov tseem ceeb tshwj xeeb rau cov hlau loj loj, cov pwm pwm, thiab cov khoom siv kho qhov muag.
7. Kev ntsuas qhov tseeb thiab kev them nyiaj yuam kev
Tom qab machining, qhov chaw yuav tsum nruj me ntsis soj ntsuam raws li specifications. Cov khoom siv tshuaj ntsuam xyuas muaj xws li kev sib koom tes ntsuas tshuab (rau txoj hauj lwm, qhov chaw nyob, thiab geometric tolerance check), roughness testers (rau kev ntsuam xyuas Ra, Rz, thiab deg profiles), thiab kho qhov muag ntsuas tshuab (tsim rau me me qhov chaw, complex contours, thiab nyias- cov khoom siv phab ntsa). Nyob rau hauv kev xyaum, ib tug kaw- txheej txheem voj yog feem ntau saws: ntsuas tom qab machining, ua yuam kev ntsuam xyuas, siv cov kev them nyiaj kho, thiab ces re- tshuab- zoo converging tolerances.
8. Kev Tswj Xyuas Kev Tiv Thaiv thiab Tiv Thaiv Kab Mob
Precision qhov yuav tsum tau muab tshem tawm tag nrho ntawm cov kua seem, hlau chips, thiab abrasive hais. Cov kev tu ib txwm muaj xws li kev tu ultrasonic, siab - kev siv tshuaj tua kab mob, tshuaj tua kab mob, thiab lub tshuab nqus tsev kom qhuav. Cov kauj ruam no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov khoom siv semiconductor thiab qhov chaw aerospace, vim nws cuam tshuam ncaj qha rau cov khoom huv thiab kev ntseeg tau.
9. Tua Peening thiab Laser Texturing
Kev txhaj tshuaj tua kab mob (siv cov hlau txhaj tshuaj, iav hlaws, lossis cov khoom siv ceramic) ua rau lub ntsej muag zoo ib yam, txhim kho qhov sib xws, thiab tshem tawm cov oxide txheej. Laser texturing generates tswj microstructures rau tailor kev sib txhuam coefficients, txhim khu cov roj- tuav lubrication, los yog txhim kho cov adhesion ntawm cov txheej tom ntej.
Cov ntawv tshaj tawm- cov tswv yim ua tiav rau kev txiav CNC milling yuav tsum tsis txhob ua qhov muag tsis pom kev txiav- ntug cov txheej txheem, tab sis ua raws li lub hauv paus ntsiab lus ntawm "yam tsawg kawg nkaus cov txheej txheem saw"- uas yog, xaiv tus nqi ntau tshaj - ua ke ntawm cov txheej txheem thaum ntsib qhov yuav tsum tau ua rau qhov tseeb qhov tseeb, qhov chaw roughness, mechanical zog, corrosion resistance, reliability. Ib qhov zoo-tsim thiab tswj nruj tshaj plaws- kev ua haujlwm ua haujlwm feem ntau txhim kho qhov zoo tshaj qhov tsuas yog nce milling precision ib leeg xwb, thiab sawv cev rau qhov txuas tseem ceeb rau "kev txhais cov lus tseeb rau hauv kev muaj tiag" hauv kev tsim khoom.