Aluminium Machining: Yuav ua li cas Precision CNC khw xa ob lub teeb yuag thiab siab zog
Pib nrog txoj cai alloy tsev neeg
6000-series (6061-T6, 6082-T6) – 310 MPa UTS, 2.7 g cm⁻³, tswj nti zoo heev; lub "tag nrho-rounder" rau brackets, vaj tse thiab welded thav duab.
7000-series (7075-T6, 7050-T76) - 530 MPa UTS, 3% siab dua qhov ceev tab sis ob zaug lub zog ntawm 6061; xaiv rau kev ncua ncua kev kawm ntawv, steering knuckles thiab aerospace fittings qhov twg txhua gram ntawm huab hwm coj tau txais kev cawmdim txhais mus rau hauv roj los yog payload nce.
Al-Li 2195/2198 - 8% qis dua li cov pa roj carbon monoxide thiab 12% nruj dua; siv rau foob pob hluav taws tso tsheb hlau luam thiab satellite kho qhov muag lub rooj zaum tom qab machining.
T6 temper & micro - tswj kev tswj
Kev daws-kho ntawm 530 degree, dej-quench hauv 15 s, ces dag- hnub nyoog 175℃/ 8 h. Qhov tshwm sim nano- nplai Mg₂Si (los yog η-MgZn₂ hauv 7xxx) precipitates nce yield zog 2–3 × thaum khaws elongation> 10 %, yog li tav thiab lub vev xaib tuaj yeem ua 20-30% thinner yam tsis muaj cov yas tawg.
Topology & thickness optimization
Ntau- lub hom phiaj algorithms tshem tawm "tsawg- cov Islands tuaj kev nyuaj siab" thiab tawm ntawm kev thauj khoom-cov kev loj; tsis ntev los no automotive sub-frame txuag 12% huab hwm coj (2.4 kg) tseem khaws cia ua ntej -mode zaus thiab kev sib tsoo- lub hom phiaj lub zog tsis hloov pauv.
Extrusion lossis ze -net forging ua raws li 5-axis xov tso cai rau 1.5 hli webs thiab 3 hli flanges-ib nrab qhov ntsuas ntawm cov pa machined phaj-thaum lub rooj sib tham nruj indices.
High -kev ceev machining zoo
20 000–30 000 rpm, 0.3 hli hniav pub, 50 bar chilled-coolant los ntawm- cuab yeej; evacuates chips ua ntej lawv re-weld thiab ua kom nto <80 degree, khaws cia T6 khoom.
Chip-thinning nrog 15℃helix kawg-mills txo txiav quab yuam 35%, yog li cov phab ntsa nyias (tsawg dua los yog sib npaug li 2 hli) tuaj yeem milled yam tsis muaj chatter lossis distortion; qhov ntev kam rau ua rau ± 0.02 hli, Ra 0.4 µm as-milled.
Ncej -machining nto engineering
Hom-II nyuaj-anodise (25 µm) ntxiv 60 HV nto hardness thiab 50% qaug zog lub neej; txhaj tshuaj-peening qhia txog −200 MPa compressive stress, tso cai ntxiv 8-10% thickness txo thaum khaws 10⁷{10}} voj voog endurance txwv.
Validation & kaw -loop quality
Hauv - lub voj voog spindle soj ntsuam xyuas txhua qhov tob hauv hnab tshos; CMM huab-cov ntaub ntawv cuam tshuam qhov tseeb phab ntsa thickness rau FEA strain twv kwv yees. Yog tias lub vev xaib 0.8 hli ntsuas 0.76 hli qhov kev pab cuam nws pib- kho cov pallet tom ntej, lav tsawg dua lossis sib npaug rau 1 % qhov sib txawv loj ib feem- mus rau -ib feem.
Qhov tshwm sim: ib qho 7075-T6 tswj- caj npab tuaj yeem yog 45% sib zog dua li nws cov steel counterpart tsis tau xa tib qhov nruj thiab siab zog dua; ib tug 6061-T6 electronics vaj tsev machined rau 1 hli phab ntsa hla 50 g poob siab thiab 96 h ntsev-txhaj tshuaj, hnyav xwb 42 g es tsis txhob ntawm 110 g rau lub legacy xuab zeb-cast version
