AHSS AUTO STAMPING CHALLENGES: RECTIFYING SPRINGBACK
نویسندگان
چکیده
منابع مشابه
Effect of Constitutive Equations on Prediction Accuracy for Springback in Cold Stamping of TRIP1180
The objective of this study is to evaluate the effect of constitutive equations on the prediction accuracy for springback in cold stamping with various deformation modes. In this study, two types of yield functions—Hill’48 and Yld2000-2d—were considered to describe yield behavior. Isotropic and kinematic hardening models based on the Yoshida–Uemori model were also adopted to describe hardening ...
متن کاملEffect of Constitutive Equations on Springback Prediction Accuracy in the TRIP1180 Cold Stamping
Ki-Young Seo 1, Jae-Hong Kim 1, Hyun-Seok Lee 2, Ji Hoon Kim 3 and Byung-Min Kim 3,* 1 Division of Precision and Manufacturing Systems, Pusan National University, Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Korea; [email protected] (K.-Y.S.); [email protected] (J.-H.K.) 2 Press Die Research Team, Nara Mold & Die Co. Ltd., Gongdan-ro 675, Seongsan-gu, Changwon-City, Gyeongnam ...
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The Yoshida nonlinear isotropic/kinematic hardening material model is often selected in forming simulations where an accurate springback prediction is required. Many successful application cases in the industrial scale automotive components using advanced high strength steels (AHSS) have been reported to give better springback predictions. Several issues have been raised recently in the use of ...
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The recently developed Spring Back Reflector has low stiffness in the deployed configuration. A general method of stiffening this type of reflector without changing its folding properties is presented. The stiffening is achieved by adding a conical skirt around the edge of the dish; this skirt snaps elastically when the dish is folded. The paper concludes that it is possible to design spring ba...
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In current proxy signature schemes, an original signer delegates her signing capability to a proxy signer, and then the proxy signer can sign messages on behalf of the original signer. Although these schemes have succeeded in proxy delegations, they share a common problem. That is, a verifier cannot ascertain that a proxy signature was signed by the proxy signer during the valid delegation peri...
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ژورنال
عنوان ژورنال: Jurnal Teknologi
سال: 2015
ISSN: 2180-3722,0127-9696
DOI: 10.11113/jt.v77.6048