Thaum lub sij hawm CNC machining ntawm 6061 aluminium alloy, ntau yam teeb meem feem ntau tshwm sim uas cuam tshuam rau kev ua tau zoo thiab kev ua haujlwm zoo vim yog cov khoom siv tsis sib xws nrog kev ua haujlwm tsis zoo. Raws li kev tsim khoom tiag tiag, peb tau sau cov teeb meem tshwm sim thiab cov kev daws teeb meem zoo.
Machining Anomalies tshwm sim los ntawm kev txiav tsis raug
6061 txhuas muaj qhov tsis tshua muaj zog (kwv yees li 95HB) tab sis cov yas siab. Yog tias qhov kev txiav ceev tsawg dhau (piv txwv li, qis dua 1000 rpm), "cov cuab yeej nplaum" tuaj yeem tshwm sim tau yooj yim, nrog cov txhuas chips accumulating ntawm lub cuab yeej ntug thiab tsim burrs. Kev pub noj ntau dhau tuaj yeem ua rau tawg ntawm qhov chaw ua haujlwm. Txhawm rau hais txog qhov no, qhov ntsuas yuav tsum tau hloov kho raws li cov khoom siv: Rau cov cuab yeej carbide, nws raug nquahu kom tswj kev txiav ceev mus rau 1500-3000 rpm thiab tus nqi pub rau 0.1-0.2 mm / r. Rau cov cuab yeej siv high-speed steel, qhov no yuav tsum tau txo qis rau 800-1500 rpm, thaum xyuas kom meej tias qhov pub rau ib tus hniav tsis pub tshaj 0.15 hli. Kev kub ceev txiav txo lub sijhawm sib cuag ntawm cov khoom siv thiab cov cuab yeej.
Cov cuab yeej xaiv thiab hnav cov teeb meem
6061 txhuas machining yuav tsum muaj cov cuab yeej siab thiab nti flute tsim. Siv cov cuab yeej blunt lossis cov cuab yeej nrog cov flutes ntiav yuav ua rau kom muaj zog txiav, ua rau cov khoom ua haujlwm deformation lossis cov cuab yeej chipping. Nws raug nquahu kom siv ultra- zoo- cov cuab yeej carbide (xws li WC-Co alloy) nrog 0.02-0.05mm ntug vojvoog kom tsis txhob chipping thiab txo cov cuab yeej lo. Rau cov kab noj hniav sib sib zog nqus, qhov kawg mills nrog lub kaum sab xis ntawm 30℃-45℃tuaj yeem siv los ua kom cov nti tshem tawm. Rau kev siv lub qhov taub, xyaum nrog cov txheej txheem tshwj xeeb ntawm txhuas (xws li AlTiN) yog qhov zoo dua los txo kev sib txhuam. Thaum cov cuab yeej flank hnav tshaj 0.2 hli, nws yuav tsum tau hloov tam sim ntawd kom tsis txhob cuam tshuam qhov tseeb qhov tseeb.
Kev tsis zoo los ntawm kev khiav tawm ntawm Chip tsis zoo
Aluminium chips yog mos thiab yooj yim qhwv ib ncig ntawm lub cuab yeej los yog sib sau ua ke hauv cheeb tsam txiav, ua rau nto khawb los yog qhov sib txawv ntawm qhov sib txawv. Cov kev daws teeb meem suav nrog: ① Siv lub siab - lub siab txias txias (siab dua lossis sib npaug li 5 MPa) thiab siv cov emulsion uas muaj cov khoom siv siab heev (8% -10% concentration) ua cov dej txias kom tshem tawm cov nti ntawm qhov txiav; ② Rau kev kaw cov kab noj hniav, "txheej txheej txiav + nres rau nti tshem tawm" lub tswv yim tuaj yeem ua haujlwm, nrog rau txhua txheej qhov tob tsis tshaj 1/3 ntawm cov cuab yeej txoj kab uas hla; ③ Thaum siv cov cuab yeej muab kauv nti flute, xyuas kom lub helix lub kaum sab xis sib phim cov kev coj noj coj ua kom tsis txhob muaj txhuas nti thaiv.
Cov kev daws teeb meem rau kev txhim kho qhov tsis zoo ntawm qhov chaw
Cov cuab yeej cim, khawb, lossis oxidation discoloration ntawm qhov chaw tom qab kev ua haujlwm feem ntau tshwm sim los ntawm kev ua kom txias tsis txaus, cov cuab yeej vibration, lossis cov khoom noj tsis sib xws. Cov kev ntsuas muaj peev xwm suav nrog: ① Txhim kho qhov kev ua kom txias txias. Thaum siv cov cuab yeej txias sab hauv, xyuas kom meej tias cov dej txias mus txog qhov txiav kom txaus, txo qhov txiav qhov kub kom qis dua 150 degree. ② Tshawb xyuas spindle runout (yuav tsum tsawg dua lossis sib npaug li 0.005mm) thiab xaiv cov cuab yeej nrog qib dynamic tshuav ntawm G2.5 lossis siab dua. ③ Rau qhov loj - cheeb tsam ca machining, siv "nce milling" txoj kev siv txiav quab yuam downward rau lub workpiece, txo kev co. ④ Tam sim ntawd ntxuav lub ntsej muag nrog anhydrous ethanol tom qab machining los tiv thaiv oxidation tshwm sim los ntawm cov kua seem seem.
Tswj Kev Ntsuas rau Dimensional Accuracy Tshaj
6061 txhuas yog qhov sib txawv ntawm qhov sib txawv vim thermal deformation thaum lub sijhawm ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv nyias- cov phab ntsa (thickness<3mm). Control methods include: ① Adopting a "separate roughing and finishing" process, pausing for 10-15 minutes after roughing to allow the workpiece to fully cool before proceeding to finishing. ② For long workpieces, employing a multi-point clamping system reduces deflection during cutting, with a clamping force of approximately 50-80N sufficient to prevent the workpiece from slipping. ③ During finishing, allow a 0.1-0.2mm margin, gradually removing it through multiple passes, with the final feed rate reduced to below 0.05mm/r to ensure dimensional stability.
Cov kev daws teeb meem rau cov teeb meem no tuaj yeem txhim kho lub CNC machining zoo ntawm 6061 aluminium alloy thiab txo cov nqi seem. Hauv kev tsim khoom tiag tiag, kev hloov pauv ntawm cov txheej txheem tsis ua raws li cov khoom siv tshwj xeeb thiab cov qauv ua haujlwm yog qhov tsim nyog kom ua tiav kev ua haujlwm zoo thiab ruaj khov.Yog tias koj xav tauKev cai 6061 txhuas CNC machiningcov kev pab cuam, thov hu rau peb rau ib tug quote.