Kev ua phem heev rau kev siv tsheb sib tsoo tau ua rau Ultra-High-Strength Steel (UHSS) thiab Advanced High-Strength Steel (AHSS)-xws li DP980, QP980, thiab $ 1500\\text{ MPa}$ martensitic kev tivthaiv rau qib kev nyab xeeb. Ua B- ncej, ntoo khaub lig, thiab chassis reinforcements los ntawm cov ntaub ntawv no guarantees exceptional crashworthiness, tab sis nws qhia txog ib tug phem tsis xws luag paradigm rau pem teb stamping:shear-ntug micro- cracking thiab ncua txias fracturing.
Tsis zoo li cov hlau me me, siab - tensile alloys muaj lub qhov rais nqaim heev elongation. Thaum lub sij hawm siab -tonnage perforation los yog blanking theem, lub shearing quab yuam loj ua rau loj heev localized yas deformation raws ntug txiav.
Qhov no ua rau muaj kev ntxhov siab heev, micro- tawg ciam txheej. Yog hais tias cov khoom absorbs ib tug ib puag ncig hydrogen thaum lub sij hawm ua, qhov residual kev nyuaj siab ua raws li ib tug catalyst, ua rau ib tug tam sim ntawd, kev puas tsuaj yam ntxwv tsis ua hauj lwm teev los yog hnub tom qab ib feem tau tawm hauv xovxwm. Qhov no tshwm sim yog hu uahydrogen{0}}induced ncua kev tawg.
Txhawm rau tiv thaiv tier-1 automotive stampers los ntawm kev npaj txhij txog kab tsis lees paub thiab kev lav phib xaub,Hengshui Dongmo Precision Hlau Khoom Co., Ltd.engineers tshwj xeebstamping tuag manufacturingcov tshuab tsim los txhawm rau txhawm rau micro- kev nthuav tawm pob txha los ntawm kev txiav cov tshuab ua kom zoo thiab ua kom zoo tshaj qhov kev faib tawm.
1. Micro-Topography Engineering ntawm Kev Txiav Ntug
Nyob rau hauv siab - tensile steel ua, siv tus qauv $90^\\circ$ ntse-edged punch yog ib daim ntawv qhia rau tam sim ntawd tooling tsis ua hauj lwm thiab deformed tivthaiv npoo. Ib tug ntse ntug concentrates ncov blanking cuam tshuam quab yuam, micro- chipping lub punch thiab tsim kom muaj kev txhoj puab heev, siab - kev ntxhov siab burr ntawm lub workpiece.
Peb cov txheej txheem kev tsim vaj tsev ua haujlwm hloov cov tsoos ntse txiav profiles nrog kev ua lej zooShear-Edge Micro-Topography:
[Punch Approach Profile] ──► [Stage 1: Micro-Honed Fillet (15 mus rau 30 μm)] (Absorbs Peak Impact Shock) │ ▼ [Scrap Separation Interface] ◄── [Stage 2: Roof-}Top / Bevel 5℃(Gradual) Tonnage)
Los ntawm kev siv lub siab -precision micro- honed vojvoog ($ 15\\ \\mu\\text{m} - 30\\mu\\text{m}$) mus rau qhov txiav ntug ua ke nrog lub ru tsev - sab saum toj (bevel) punch tsim, peb hloov li cas cov xuas nrig ntaus los ntawm cov hlau lattice. Qhov kev teeb tsa no txo qis qhov pib tonnage nce mus txog $ 30\\%$, nthuav qhov "shear zone" ntawm cov ntug tivthaiv, thiab compresses qhov kev ntxhov siab, tawg-nruj "fracture zone" mus rau qhov tsawg kawg nkaus microscopic.
2. Tswj kev txiav tshem tawm thiab qhov seem ntawm Tensile Stress
Txhawm rau tiv thaiv kev tawg qeeb, cov cuab yeej cuab tam layout yuav tsum tswj cov seem tensile kev nyuaj siab uas nyob rau hauv cov tivthaiv sheared ciam phab ntsa. Ib lub zog loj tshaj plaws rau qhov kev tswj no yog kev tswj xyuas meejtuag txiav clearance:
Expanded Clearances rau siab -Tensile Tshuag:Thaum tus qauv hlau xav tau kev txiav tshem tawm sib npaug li $ 10% $ ntawm cov khoom tuab, ua DP980 lossis QP980 xav tau kev nthuav dav ntxiv ntawm$14\\%$ rau $18\\%$. Qhov kev nthuav dav no tso cai rau cov khoom tawg kom huv si los ntawm ob qho tib si sab sauv thiab sab ntug ib txhij, tiv thaiv ob qho - cov nyhuv shearing uas cuam tshuam cov kev ntxhov siab nyob hauv cov hlau matrix.
Ncej -Shear Stress Relief Cores:Nyob rau hauv advancedprogressive tuag stampinglayouts, peb integrate localized post -piercing coining stations. Cov chaw nres tsheb no siv lub hom phiaj, siab - siab compressive tawm tsam ncaj qha mus rau ntawm tus ciam ciam ciam teb, hloov cov kev ntxhov siab latent tensile txaus ntshai rau hauv kev nyab xeeb, ruaj khov compressive stress, uas mus tas li ntes hydrogen-induced micro- tawg propagation.
3. Ultra-Trough Tool Metallurgy kom ciaj sia taus qhov cuam tshuam loj heev
Blanking $1000\\text{ MPa}+$ steel sheets subjects the punching matrix to extreme shock waves and abrasive friction. Standard high -ceev steels tsis ua hauj lwm tam sim ntawd qaug zog tawg. Peb cov khoom siv matrix siv cov hmoov zoo tshaj plaws -metallurgy substrates engineered rau siab - cuam tshuam ntev:
| Tool Component Node | Premium Substrate Xaiv | Hardness & Khoom | Optimization Cov txiaj ntsig |
| Hnyav -Lub luag haujlwm Piercing Punches | Tom ntej: Bohler K390 Microcleanlos yogUddeholm Vanadis 8 | $62 - 64\\text{HRC}$ (Ntau abrasive hnav tsis kam) | Zero ntug chipping tshaj lab tus siab -tonnage cycles. |
| Lower Tuag Txiav Matrices | Caldielos yogdc53 ua(Advanced txias-ua haujlwm matrix steel) | $60 - 62\\text{HRC}$ (Elite compressive yield zog) | Kev tiv thaiv siab tshaj plaws rau kev sib cais-cracking nyob rau sab siab-thrust loads. |
| Active Stripper Ntxig | Cr12MoV / D2(Cryogenically Stabilized) | $58 - 60\\text{HRC}$ (High structural rigidity) | Tshem tawm cov khoom tilting thiab tswj qhov tseeb perpendicular punch nkag. |
4. Kev ruaj ntseg Automotive ua raws li Hengshui Dongmo
Cov cuab yeej siv cuab yeej cuab tam muaj peev xwm taming ultra- siab- lub zog hlau yuav tsum muaj kev nkag siab zoo ntawm cov khoom yas thiab niaj hnub tribological physics. Tiv thaiv koj daim ntawv cog lus kev tsim kho tsheb, tshem tawm cov kev pheej hmoo ntawm kev tawg qeeb, thiab txo koj cov nqi kho mob los ntawm kev koom tes nrogHengshui Dongmo Precision Hlau Khoom Co., Ltd.Peb rov qab koj cov nroj tsuag sib dhos nrog kev txiav -ntug DFM shear simulation, cov hmoov siab heev- metallurgy cov cuab yeej kev koom ua ke, thiab siab -precisionstamping tuag tsimlub moj khaum ua rau xoom-kev ua haujlwm tsis raug cai.
Ua kom koj siab -Tensile Component Yield- Hu rau peb Pab Pawg Engineering Hnub no:
Lub npe tuam txhab:Hengshui Dongmo Precision Hlau Khoom Co., Ltd.
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