Ua kev ua haujlwm ua haujlwm tshwj xeeb hauv kev tsim khoom ntawm cov khoom siv siab, qhov chaw ua haujlwm zoo nkauj, Dahong precision zoo ntawm qhov chaw zoo ntawm cov khoom lag luam rau cov khoom ua haujlwm. Cov noob tsis txaus ua tiav yuav ua rau tsis muaj kev txwv, muab cov teeb meem tsis ua haujlwm. Raws li cov tshuab ua haujlwm hnyav, kev xaiv cov koom tes rau CNC machining yog qhov tseem ceeb heev. Cov kab lus no ntsuas qhov tseem ceeb ntawm cov khoom muaj sia ntawm tsib qhov ntau: thev naus laus zis, cuab yeej thev naus laus zis, thiab kev kho mob tom qab.
Tus ncaj qha ntawm cov khoom siv ntawm cov npoo ua tiav
Qhov sib txawv ntawm cov khoom sib xyaw ntawm tooj dag alloys
Hom Brass (xws li H62 / H65): Zinc Ntsiab Lus tab sis nquag yog cov cuab yeej tsim tsa (RA 1. {5}}. 2μm).
High-txhuas caj npab (xws li HPB {{}}}}}}}}}}}. 4μm lossis tsawg dua.
Tshwj xeeb tooj dag (xws li Silicon tooj dag): silicon tau ntxiv los txhim kho hardness, tab sis cov kev txiav tawm yuav tsum tau kho kom tsis txhob chipping.
Kev sib xyaw ntawm cov khoom microstructure
Coarse nplej (Astm Qeb 4): Cov ciaj ciam nplej 4): Cov qoob loo cov kua muag thaum txiav, thiab cov kev ntxhib nce los ntawm {}}}%.
Kev daws: Cov txheej txheem kos duab txias (grain loj 8-10 qib) lossis analing kho (qeeb txias rau 2 teev) yog saws.
Kev tswj hwm kev tswj ntawm kev ua haujlwm thev naus laus zis
Kev sib raug zoo ntawm kev txiav ceev (vc) thiab qhov chaw zoo
| Ceev Ntau Yam (M / min) | Nto roughness (ra) | Kev pheej hmoo ntawm cov qog ua rau |
|
50-80 |
1.6-3.2μm | Siab |
| 120-180 | 0.8-1.6μm | nruab nrab |
| 200-250 | 0.4-0.8μm | qi |
Cov tswv yim ua kom tau zoo: Rau kev ua yeeb yam, nws raug pom zoo tias VC =180-220 m / min (rau cov cuab yeej siv nyuaj alloy).
Tus Nqi Noj (F)
Excessive feed rate (f >{{0 {0}}. 15mm / Rev): Cov qhov siab uas tseem tshuav ntau ntxiv, thiab tus RA tus nqi nce los ntawm 50%.
Cua txias thiab lubrication lub tswv yim
Qhov txiav kom qhuav: tooj dag muaj lub siab thermal conductivity (109W / mind k · k), tab sis nws yog ib qho dhau los ua rau lub cuab tam thiab muaj cov khoom tsis zoo.
Micro lubrication (MQL): Los ntawm kev siv ester-based roj mist ({
Cov tub ntxhais lub luag haujlwm ntawm cov kev xaiv thiab kev tswj hwm
Kev sib piv ntawm cov khoom siv cuab yeej
| Tuam Hom | Muaj qhov xwm txheej | Nto roughness (ra) |
| Uncoated cemented carbide | Cov Machining | 0.8-1.6μm |
| Pob Zeb Diamond-Coated Cuab Yeej | Daim iav Xov Xwm | Tsawg dua los yog sib npaug rau 0. 2μm |
| CBN Tool | High-hardness brass (HRB>80) | 0.4-0.8μm |
Tsim Cov Qauv Qhia rau cov ces kaum
Rake Angle (₀): 10 Degree {-15} degree (txhawm rau txo cov quab yuam thiab tiv thaiv kev ua haujlwm ntawm ntug)
Lub kaum sab xis (₀): 6 degree -8}} degree (los tiv thaiv lub ntsej muag tsheb ntsej muag los ntawm cov khoom siv hluav taws xob)
Cuab Tam Ntus Arc RADIUS (R): {{{{{}}. {{}}. 8 hli (lub zog sib npaug)
Qhov tseem ceeb cuam tshuam ntawm cov cuab yeej thiab ib puag ncig
Tshuab Khoom Kev Yuav Tsum Tau Ua
Radial runout ntawm lub ntsiab ncej: tsawg dua lossis sib npaug ntawm 0. 005mm (tshaj qhov kev txwv no yuav ua rau kev co cim thiab ob npaug ntawm tus nqi ra).
Kev daws: Xaiv cov chaw siab dawb machining (xws li makino 81nx) thiab configure hydraulic cov cuab yeej sib npaug hydraulic.
Optimizes ntawm fixture ruaj khov
Mekas mos muag muag claws: 3D luam tawm cov muag muag zoo li nrog cov khoom siv clamping nrog faib kom tiv thaiv kev ua haujlwm deformation.
Hydraulic fixture siab: {{{{{0}} mpa mpa mpa (ra tus nqi hloov kho ± 0.4μm).
Ib puag ncig kub thiab vaum tswj
Kev hloov pauv kub hloov pauv: tsawg dua lossis sib npaug ntawm ± 1 degree (seem degree los ntawm thermal deformation yog}}}. 005mm / m).
Vaum ntau: 40-60% (txhawm rau tiv thaiv oxidation thiab discoloration ntawm tooj dag).
Kev sib tsoo kom zoo ntawm cov txheej txheem kev kho mob tom qab
NEEG KHO TSHUAB POLISHING
Kev ntxhib Polishing: Siv nylon log + pob zeb diamond sib tsoo muab tshuaj txhuam (9μm), RA tau raug txo los ntawm {2}}}}. 4μm.
Zoo polishing polishing: wool log + cerium oxide polishing kua (1μm), ra tsawg dua lossis sib npaug}. 1μm.
Tshuaj Lom Neeg cai Polishing
Cov Qauv: Nitric Acid (15%) + Cov Dej Phos Hluav Taws Xob (45%) + Dej (40%), Soak}}} {5}} {vib nas this kom tshem tawm cov ntawv tawg.
Kev Tu Tshuab Ultrasonic
Cov tsis muaj: 40kHz zaus: qhov nruab nrab ntawm tus neeg saib xyuas, kom tshem tawm cov lus seem ntawm polishing.
Qhov chaw ua tiav ntawm tooj dag feem yog qhov tshwm sim ntawm cov nyhuv sib xyaw ua ke ntawm cov khoom siv, kev siv cov txheej txheem, cov cuab yeej cuab tam tau zoo thiab cov cuab yeej siv tom qab. Ua lub Hoobkas tshaj lij kev lag luam hauv thaj teb ntawm kev tsim kev lag luam siab, Dahong precancion), nrog 9 xyoo kev daws teeb meem los ntawm cov khoom xaiv ua kom zoo rau cov khoom lag luam zoo. Txawm hais tias koj xav tau daim iav-qib ua haujlwm sib xws uas tau ntsib ra 0. 1μm}. 1μm}. 1μm}. 1μm} Pib koj tes num tam sim ntawd!
Cia peb ua tej yam txawv tshaj plaw ua ke
Ntawm Dahong precision, peb ntau dua li lub cnc machining cov khoom siv, peb yog koj tus khub hauv kev lag luam precision. Txawm hais tias koj xav tau qhov chaw yooj yim lossis ntu yooj yim, peb 3, 4 thiab 5 axis cnc machining cov kev pab xa cov khoom zoo thiab kev ntseeg tau. Tiv tauj peb niaj hnub no los tham txog koj txoj haujlwm thiab nrhiav seb peb yuav pab koj ua tiav koj cov hom phiaj.
