Tooling & Geometry
Xaiv ntau- txheej PVD-coated (AlTiN/TiSiN) carbide inserts nrog zoo rake thiab ntse ntug (hone Tsawg tshaj los yog sib npaug rau 0.02 hli) rau shear es tsis rub, ncua kev ua hauj lwm - hardening.
Khaws lub qhov ntswg vojvoog Tsawg dua los yog sib npaug li 0.4 hli thiab siv nti -breaker grooves matched rau tus nqi pub; no halves txiav quab yuam thiab tswj ntev, ductile chips.
Txiav Data Regime
Khiav "txias thiab nrawm": qis ceev (60–120 m / min) tab sis siab pub (0.08–0.20 mm / rev) thiab qhov tob Ntau dua lossis sib npaug li 0.2 mm kom nyob qis dua qhov ua haujlwm - hardening pib.
Tsis txhob nyob -program tas li nti load; re- txiav chips nce hardness hauv zos los ntawm 30% thiab tua cov cuab yeej lub neej .
Thaum tshav kub kub & Chip Management
Dej nyab nrog 7 MPa siab- lub siab txias txias tsom rau ntawm thaj chaw shear, lossis siv MQL nrog CO₂ cryo- dav hlau rau 17-4 PH, txhawm rau khaws qhov kub thiab txias < 650℃thiab tsis txhob hnav khaub ncaws.
Ua haujlwm los ntawm - cov cuab yeej coolant qhov thiab synchronous siab - ceev nti conveyors; 90% ntawm qhov chaw khawb ntawm cov hlau tsis huv yog los ntawm cov chips daig.
Rigid Setup & Vibration Damping
Siv luv luv - ntsuas, hydraulic lossis shrink - haum tuav nrog Ntau dua lossis sib npaug rau 4 × txoj kab uas hla qhov sib piv; qhov no nce dynamic rigidity 3 × thiab suppresses chatter uas txwv tsis pub tawm 10 µm chatter cim.
Rau nyias- cov phab ntsa (tsawg dua los yog sib npaug li 0.5 mm), sau cov kab noj hniav nrog qis- melt alloy lossis khov CO₂ los muab kev txhawb nqa thaum lub sijhawm ua tiav .
Progressive Pass Strategy
Sequence: ntxhib (tawm 0.3 hli), kev ntxhov siab- nyem ntawm 350℃/ 2 h, semi-finish (0.1 mm), tiav (0.02–0.05 mm). Txhua qhov hla nkag mus rau hauv qab cov txheej txheem hardened yav dhau los, tuav txoj kab uas hla kam rau ua nyob rau hauv ± 0.01 hli thiab roundness tsawg dua los yog sib npaug rau 3 µm.
Surface Integrity Control
Qhov kawg dhau nrog wiper ntxig lossis CBN ntawm 0.05 mm qhov tob, 0.02 mm / rev pub rau ntaus Ra 0.4 µm hauv ib qho kev txiav; tshem tawm cov polishing theem nrab thiab tsis txhob muaj kev ntxhov siab ntxiv> 200 MPa uas tuaj yeem ua rau muaj kev ntxhov siab -corrosion tawg.
Passivate nyob rau hauv 20% nitric acid rau 30 min tam sim ntawd tom qab machining kom yaj embedded hlau thiab restore corrosion kuj.
Quality & Cost Optimization
Siv rau hauv - voj voog cua - ntsuas los yog laser txoj kab uas hla tawm tswv yim; kho cov cuab yeej- hnav offset tau txais txhua 20 qhov chaw, ua kom Cpk Ntau dua lossis sib npaug rau 1.67 yam tsis muaj kev cuam tshuam tus neeg teb xov tooj.
Muab 5-axis tig-mill thiab neeg hlau loader kom tawg 3 teeb rau hauv 1, txiav 25% lub sij hawm voj voog thiab 15% tus nqi ib thooj ntawm ntau ntau dua lossis sib npaug rau 5 000
