High Efficiency Deep Sib Tsoo (HEDG) nthuav qhia kev hloov pauv rau kev ua haujlwm nyuaj aerospace-qib titanium alloys (xws li Ti-6Al-4V). Qhov kev tshuaj ntsuam no suav nrog HEDG cov txiaj ntsig zoo-ua kom nce siab Cov Khoom Siv Tshem Tawm (MRR) thiab txhim kho qhov kev ncaj ncees-tawm tsam nws qhov cuam tshuam txog kev lag luam, tshuaj xyuas cov peev peev, cov nqi siv tau, thiab tag nrho cov nqi ib feem.
1. Cov Ntsiab Cai thiab Txheej Txheem Windows
Kev sib tsoo ntawm titanium alloys ua haujlwm ntawm Cov Khoom Siv Tshem Tawm Tsawg (Q'w < 5 mm³ / mms) kom txo tau cov thermal puas. HEDG nyuaj rau qhov no los ntawm kev siv ib qho kev sib koom ua ke ntawm lub log ceev (vs> 80 m / s), qhov tob ntawm kev txiav (ap mus txog 15 mm), thiab siab workpiece pub (vw). Qhov no tsim ib qho MRR (Q'w=ap * vw) tshaj 50 mm³ / mms, hloov qhov sib faib cua sov.
Lub hauv paus ntsiab lus tseem ceeb yog tsim cov nti tuab loj txaus los nqa tawm cov cua sov ua ntej nws mus rau hauv qhov chaw ua haujlwm. Qhov no txo cov kev sib tsoo tshwj xeeb (Ec) thiab txo qhov kub ntawm qhov chaw hauv qab qhov kev hloov pauv tseem ceeb (~ 980℃rau Ti-6Al-4V). Kev ua tiav yuav tsum muaj kev tswj xyuas meej nyob rau hauv qhov nqaim "qhov rais txheej txheem" txhais los ntawm:
Lub zog tshwj xeeb tseem ceeb: Lub zog pib rau kev pib hlawv. Rau Ti-6Al-4V, HEDG yuav tsum ua haujlwm qis dua ~ 60 J / mm³.
Sib Tsoo Fais Fab Limit: Lub tshuab cuab yeej nruj thiab lub zog ntxaiv (feem ntau> 80 kW) yuav tsum txhawb nqa lub zog sib tsoo siab (Ft).
Optimized Log Specification: Ultra- nyuaj, thermally ruaj khov abrasives zoo li cubic boron nitride (CBN) nrog siab porosity ceramic bonds yog yuav tsum tau. Cov qoob loo loj feem ntau yog li ntawm 80 txog 120 grit rau qhov sib npaug ntawm cov khoom tshem tawm thiab daim ntawv- tuav.
2. Kev Tshawb Fawb Txog Kev Lag Luam: Tus nqi tsav tsheb thiab tawg -Txawm cov ntsiab lus
Kev lag luam muaj txiaj ntsig ntawm HEDG tsis yog qhov tshwm sim tab sis raws li qhov xwm txheej, txiav txim siab los ntawm tus qauv tus nqi kom ntxaws piv rau ntau- dhau kev nkag mus rau cov khoom sib tsoo - pub kev sib tsoo.
2.1 Peev thiab Consumable Costs (Cov tswv yim siab dua)
Machine Tool: HEDG demands a high-static-stiffness machine, high-power spindle (up to 150 kW), high-pressure coolant system (>100 bar), thiab muaj zog CNC platform. Kev nqis peev pib yog 30-50% siab dua li cov khoom sib tsoo.
Sib tsoo Log: Hwm CBN lub log sawv cev rau tus nqi tseem ceeb. Txawm li cas los xij, lawv tus nqi hnav (G- piv) hauv HEDG tuaj yeem yog 3-5X siab dua Al₂O₃ lub log hauv cov pa sib tsoo vim txo cov tshuaj atrition ntawm luv log-workpiece sib cuag lub sij hawm.
Coolant System: High -pressure filtration thiab thermal tswj systems ua rau cov nqi pab.
2.2 Cov Nqi Them Nqi Ua Haujlwm (Lowed Output)
Kev Ua Haujlwm Ncaj Ncees & Lub Sij Hawm Lub Sij Hawm: Qhov tseem ceeb txuag. HEDG tuaj yeem txo lub sijhawm sib tsoo ntau dua 70% rau qhov sib sib zog nqus los yog cov profiles. Ib feem uas xav tau 90 feeb hauv creep-feed tej zaum yuav ua kom tiav hauv<25 minutes with HEDG.
Txo Pem Teb - mus rau - Lub Sij Hawm Pem Teb: Siab MRR txo tag nrho cov kev tuav thiab lub sij hawm queuing.
Txhim kho Surface Integrity: Kev txo qis hauv subsurface tensile residual stress, white layer formation, thiab micro-cracking minimizes post-grind rework or rejection rates. Qhov no yog qhov tseem ceeb, feem ntau tsis muaj nuj nqis, txuag rau aerospace Cheebtsam uas raug rau kev qaug zog.
2.3 Tag Nrho Tus Nqi Ib Ntu Qauv
Tus qauv yooj yim qhia txog kev lag luam tawm -tawm:
Thaum HEDG nce lub Tshuab Teev Sij Hawm (vim qhov peev nyiaj amortization) thiab muaj peev xwm Log Nqi, nws txo qis Lub Sijhawm Sijhawm. Qhov tawg -Txawm qhov loj me yog nyob ntawm qhov geometry thiab xav tau MRR. Cov kev tshawb fawb qhia tias HEDG dhau los ua kev lag luam zoo rau cov khoom siv uas qhov ntim ntawm titanium tshem tawm tshaj ~ 100 cm³ ib feem.
3. Daim ntawv thov Case Studies
Aerospace Structural Component
Sib tsoo ntawm qhov sib sib zog nqus, qhov tseeb hauv Ti-6Al-4V tsaws iav forgings. Cov Txheej Txheem Txheej Txheem: MRR=3.2 mm³/mms, cycle time=45 min/part, G-ratio=220. HEDG Process: MRR=55 mm³/mms, cycle time=8 min/part, G-ratio=850. Txawm hais tias tus nqi log siab dua, tag nrho cov nqi ib feem raug txo los ntawm 34% rau ib xyoos twg.
Kev kho mob Implant Machining
Tiav ntawm complex orthopedic cog geometries los ntawm forged blanks. HEDG enabled qhuav machining los yog MQL (Tsawg Quantity Lubrication) los ntawm kev tswj cov cua sov ingress, tshem tawm cov coolant pov tseg cov nqi thiab ua kom tiav nto roughness Ra <0.8 µm nyob rau hauv ib tug pass.
4. Xaus thiab Outlook
HEDG tsis yog ib qho kev daws teeb meem thoob ntiaj teb tab sis lub tswv yim muaj zog thev naus laus zis rau siab - ntim, siab - tus nqi titanium cov khoom uas cov khoom ntim tshem tawm yog qhov tseem ceeb. Nws qhov kev pom zoo ntawm kev lag luam cuam tshuam rau kev dhau los ntawm - tus qauv tsav uas ua rau lub sij hawm luv luv kom txo tau cov peev nyiaj ntau dua thiab cov cuab yeej siv. Kev ua tau zoo yuav tsum muaj:
Precise txheej txheem qauv kom tsis txhob thermal puas ntawm cov txheej txheem txwv.
Kev nqis peev hauv kev sib xyaw tshuab- cuab yeej- cov txheej txheem txheej txheem, tsis yog lub siab - ceev spindle.
Kev txheeb xyuas tus nqi tag nrho suav nrog kev ua tau zoo thiab ua tus coj- cov txiaj ntsig sijhawm.
Kev txhim kho yav tom ntej tsom mus rau kev tswj hwm kev hloov pauv uas hloov pauv hloov pauv tus nqi noj raws li qhov tiag -lub sij hawm spindle zog saib xyuas, thiab qib siab ntawm CBN log formulations nrog engineered porosity rau ntxiv txo nyob rau hauv sib tsoo rog. Rau titanium machining tus nqi saw, HEDG sawv cev rau kev suav, siab - rov qab peev hauv kev sib tw tsim kev lag luam.
