Hauv kev lag luam hlau stamping, cov npoo ntawm cov khoom lag luam tau txais txiaj ntsig thiab cov khoom seem ntau dhau yog nyob ntawm qhov pib daim phiaj xwm txheej txheem.stamping tuag. Raws li Tier-1 thoob ntiaj teb cov saw hlau hloov pauv sai mus rau siab- lub zog aluminium alloys rau tsheb lub teeb hnyav thiab cov ntawv tuab dua rau cov hlab ntsha siab (xws li LPG lub tog raj kheej), cov cuab yeej cuab tam qub tsim feem ntau ua tsis tau raws li qhov xav tau ntawm kev ntxhov siab.
Ua kom tiav qhov sib xws yuav tsum tau hloov cov cuab yeej cuab tam dhau los thiab tsom mus rau cov neeg kho tshuab physics meej.
1. Deciphering the Clearance Math: Tiv thaiv Burrs thiab Die Galling
Lub clearance ntawm lub punch thiab matrix tsis tuaj yeem kwv yees los ntawm txoj cai ntawm tus ntiv tes xoo. Rau siab - ntim kev tsim khoom, kev tshem tawm tsis raug ncaj qha ua rau muaj kev sib tsoo ntau dhau los yog siv cov cuab yeej nrawm.
Rau Soft Alloys (piv txwv li, Aluminium 6061-T6):Tight clearances feem ntau ua rau mob hnyav heev. Cov khoom siv adheres raustamping tuagnto, ruining lub aesthetic thiab structural kev ncaj ncees ntawm cov tivthaiv. Peb siv tshwj xeeb PVD (Lub Cev Vapor Deposition) coatings ua ke nrog kev suav $ 10\\%$ rau $ 12\\%$ ib - sab clearance txheeb ze rau cov khoom tuab kom txo tau cov kev sib txhuam.
Rau Hnyav-Gauge Steel (piv txwv li, HP295 rau Gas Lub tog raj kheej):Localized siab spikes exponentially thaum blanking. Ntawm no, qhov profile tuag yuav tsum muaj qhov sib npaug ntawm qhov sib npaug ($ 0.5^\\circ$ rau $ 1^\\circ$) kom tso cai rau cov slug ejection du, tiv thaiv tus neeg tuag slug rub uas rhuav tshem cov chaw nres tsheb.
2. Sib sib zog nqus-Drawing Physics: Tswj cov khoom ntws thiab Wrinkling
Tsim cov tais sib sib zog nqus lossis cylindrical shells (xws li lub cev tua hluav taws) ntsuas qhov kev txwv tsis pub ntawm cov hlau yas. Thaum ib tus neeg tuav khoob siv lub siab tsis sib xws, daim ntawv yog wrinkles vim yog hlau ntau dhau los yog tawg vim dhau - ncab.
| Defect ntsib | Root Ua hauv Tooling | Engineering Countermeasure |
| Flange Wrinkling | Tsis muaj peev xwm tuav lub zog (BHF) uas tso cai rau kev sib sau ua ke ntawm cov hlau tsis txaus. | Siv cov dynamic hydraulic cushions hauv lubstamping tuagpuag rau adaptive siab nrhiav. |
| Hauv qab Fracture | Kev kos ntau dhau- txwv hlaws dai lossis ntse tuag nkag lub vojvoog ($R$). | Reworking qhov nkag profile rau hauv ib qho kev nkhaus parabolic; kev kho dua tshiab rau D2 lossis DC53 cov cuab yeej steel cua sov- kho rau HRC 60-62. |
| Phab ntsa Thinning | Tsis zoo lubrication taug qab los yog tsis tsim nyog sib sib zog nqus - kos clearance ratios. | Optimizing qhov clearance rau $1.1\\times$ rau $1.15\\times$ nominal sheet thickness kom sib npaug ironing teebmeem. |
3. Strip Layout Strategy nyob rau hauv Progressive Stamping Tuag
Kev siv cov khoom siv ntau tshaj plaws yog qhov tseem ceeb tshaj plaws rau kev txo cov nqi ib feem ntawm -ib feem hauv ntau - chaw nres tsheb nce. Ib qho kev npaj tsis zoo los yog qhov chaw zes tsim tsim cov pob txha pob txha tsis tsim nyog.
[Station 1: Piercing] ──> [Station 2: Notching] ──> [Station 3: Draw No.1] ──>[Station 4: Coining & Cut-tawm]
Los ntawm kev siv cov txheej txheem finite ntsuam xyuas (FEA) ua ntej txiav cov cuab yeej hlau, cov kws tsim khoom tuaj yeem sim ua li cas cov cab kuj coj tus cwj pwm thaum lub sij hawm tsis tu ncua siab - nrawm nrawm. Incorporating robust pilot pins nyob rau hauv lubstamping tuagarchitecture xyuas kom meej qhov chaw kam rau ua raug kaw tsis pub dhau $\\pm0.02\\text{mm}$, tiv thaiv kev ua kom yuam kev los ntawm kev rhuav tshem qhov chaw nres tsheb zaum kawg geometry.
4. Kev daws teeb meem nyuaj: Txhim kho cov cuab yeej ua haujlwm ntev ntawm lub khw hauv pem teb
Txhawm rau kom ntseeg tau tias koj qhov kev yuav khoom thoob ntiaj teb ntawm cov cuab yeej kev cai yields tshaj 1 lab strokes, kev tiv thaiv kev tiv thaiv yuav tsum tau tsim ncaj qha rau hauv cov khoom siv tuag:
Quick-Hloov Inserts:Tsim kom siab -cov chaw hnav (xws li me me piercing punches) raws li cov khoom siv ua haujlwm tso cai rau cov neeg ua haujlwm sib pauv cov khoom hnav tawm hauv qis dua 15 feeb yam tsis muaj kev rhuav tshem tag nrho cov cuab yeej thaiv.
Thermal Management:Hauv kev ua haujlwm siab - nrawm nrawm, kev sib txhuam ua kom muaj cua sov hauv zos uas hloov cov cuab yeej steel qhov nyuaj. Cov tswv yim sab hauv cov cua txias los yog cov khoom siv hluav taws xob tshwj xeeb yog qhov yuav tsum tau ua kom cov qauv ua kom ruaj khov.
Kev nqis peev nyob rau hauv ib qho ruaj khov, kev cai- kho kom haumstamping tuagtsis yog kev yuav khoom kho vajtse-nws yog kev nqis peev hauv kev kwv yees, xoom- tsis xws luag kev tsim khoom siv sijhawm.