【摘要】：Car manufacturing is always regarded as the key industry behind sheet metal forming, and thus, the requirements of and developments in car manufacturing play a decisive role in the development of sheet metal forming. The automotive industry is faced with contradictory demands and requirements: better performance with lower consumption and less harmful emissions, more safety and comfort; these are extremely difficult to supply simultaneously with conventional materials and conventional manufacturing processes. The fulfillment of these often contradictory requirements is one of the main driving forces in the automotive industry and thus in the material and process developments in sheet metal forming, as well. In recent years, significant developments can be observed in the application of high-strength steels. In this respect, the application of various dual-phase steels is one of the best examples. However, the application of these highstrength steels often leads to formability and manufacturing problems. One formability problem is the springback occurring after sheet metal forming. In the current research, we have dealt mainly with advanced high-strength steels, primarily with dual-phase steels. When applying them, the springback phenomenon is one of the most critical issues. To reduce the tremendous amount of experimental work needed, we also applied numerical simulation using isotropic kinematic hardening rules. The isotropic kinematic hardening behavior of a given material in the applied Auto Form numerical package may be characterized with three independent material parameters c, v and K(a detailed explanation of their meaning will be given in the main part of this paper). However, we found that the material data included in simulation packages for these new high-strength steels are not fully adequate. For the determination of more reliable material parameters and to achieve better simulation results, a new testing device was developed. Numerical simulations were performed using the material parameters determined by the new device to show the sensitivity of springback behavior to these material parameters.
[Abstract]:Car manufacturing is always regarded as the key industry behind sheet metal forming, and thus, the requirements of and developments in car manufacturing play a decisive role in the development of sheet metal forming. The automotive industry is faced with contradictory demands and requirements: better performance with lower consumption and less harmful emissions, more safety and comfort; these are extremely difficult to supply simultaneously with conventional materials and conventional manufacturing processes. The fulfillment of these often contradictory requirements is one of the main driving forces in the automotive industry and thus in the material and process developments in sheet metal forming, as well. In recent years, significant developments can be observed in the application of high-strength steels. In this respect, the application of various dual-phase steels is one of the best examples. However, the application of these highstrength steels often leads to formability and manufacturing problems. One formability problem is the springback occurring after sheet metal forming. In the current research, we have dealt mainly with advanced high-strength steels, primarily with dual-phase steels. When applying them, the springback phenomenon is one of the most critical issues. To reduce the tremendous amount of experimental work needed, we also applied numerical simulation using isotropic kinematic hardening rules. The isotropic kinematic hardening behavior of a given material in the applied Auto Form numerical package may be characterized with three independent material parameters c, v and K(a detailed explanation of their meaning will be given in the main part of this paper). However, we found that the material data included in simulation packages for these new high-strength steels are not fully adequate. For the determination of more reliable material parameters and to achieve better simulation results, a new testing device was developed. Numerical simulations were performed using the material parameters determined by the new device to show the sensitivity of springback behavior to these material parameters.
【作者單位】： Department
【基金】：the New Hungarian Development Plan and jointly financed by the European Union and European Social Fund
【分類(lèi)號(hào)】：TG142.1

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李全安,白真權(quán),黃得志,張清,文九巴,李鶴林;Predictive Model for Corrosion Rate of Oil Tubes in CO_2/H_2S Coexistent Environment Part Ⅰ: Building of Model[J];Journal of Southwest Jiaotong University;2004年02期

2 王海川,董元篪,張文明,王世俊,周云;Physical and chemical performances of high Al steels[J];Journal of Central South University of Technology(English Edition);2005年04期

3 車(chē)淳山;盧錦堂;孔綱;;Interpretation on Sebisty effect of hot-dip galvanized steels[J];Transactions of Nonferrous Metals Society of China;2005年06期

4 Vinogradova N.A.;Demina E.V.;Prusakova M.D.;;Diffusion parameters of hydrogen in low activation steels[J];廣東有色金屬學(xué)報(bào);2005年Z1期

5 ;Effect of Ti content on the yield strength of Nb-Ti microalloyed steels[J];Baosteel Technical Research;2009年04期

6 W BLECK;S MUENSTERMANN;;Design of microstructure for damage tolerance in high strength steels[J];Baosteel Technical Research;2010年S1期

7 Kotobu NAGAI;;Recent progress related with ultra-steels at NIMS[J];Baosteel Technical Research;2010年S1期

8 YANG A'na;LIU Gang;;Microstructure and precipitation in two Zr-B microalloyed steels subjected to thermomechanical control process and weld thermal simulations[J];Baosteel Technical Research;2014年01期

9 凌國(guó)平 ,劉濤 ,劉立 ,酈劍;Erosion behavior and mechanism of boronised steels[J];Journal of Zhejiang University Science;2002年03期

10 李德志,何業(yè)東,王德仁,張召恩,齊慧濱,高唯;Corrosion-erosion resistance of Zn-Al co-cementation coatings on carbon steels in aqueous media[J];Transactions of Nonferrous Metals Society of China;2002年06期

相關(guān)會(huì)議論文 前10條

1 Adel Almaghrbi;;Corrosion behaviors of two steels with and without coating layers in aqueous solution environment[A];2004年中國(guó)材料研討會(huì)論文摘要集[C];2004年

2 楊柳;羅迎社;;Constitutive model depending upon temperature and strain rate of carbon constructional quality steels[A];Proceedings of the 9th National Conference on Rheology[C];2008年

3 ;Effect of Temperature and Composition on Thermal Properties of Carbon Steel[A];2009中國(guó)控制與決策會(huì)議論文集（3）[C];2009年

4 Nagano T;Kawagoishi N.;Moriyama M;;RELATION BETWEEN FATIGUE STRENGTH AND HARDNESS OF MARAGING STEEL[A];中國(guó)力學(xué)學(xué)會(huì)學(xué)術(shù)大會(huì)'2005論文摘要集（下）[C];2005年

5 Xinlei Ni;Guoqing Zhang;Yong Zhang;;Research Progress of Cold Working Die Steel[A];中國(guó)材料大會(huì)2012第16分會(huì)場(chǎng)：材料先進(jìn)制備加工技術(shù)論文集[C];2012年

6 BLECK Wolfgang;KONOVALOV Sergey;PRAHL Ulrich;;Microalloyed Engineering Steels[A];中國(guó)金屬學(xué)會(huì)特殊鋼分會(huì)理事會(huì)暨2013年汽車(chē)零部件用高品質(zhì)特殊鋼研討會(huì)論文集[C];2013年

7 ;Effect of Si and Nb on the solidification mode of a Cr-Ni-Mn-Naustenitic hydrogen-resistant steels[A];第十二屆全國(guó)電子顯微學(xué)會(huì)議論文集[C];2002年

8 He Yi-Gui;Tan Li;Wei Yuan-Sheng;Liu Pan;Liu Dong-Lin;Zhou Zhan;Bao Yao-Zong;;The new type austenite dynamic recrystallization of the microalloyed forging steels 38MnVS6 during forging process[A];2013釩鈦高強(qiáng)鋼開(kāi)發(fā)與應(yīng)用技術(shù)交流會(huì)論文集[C];2013年

9 R.Kasada;S.H.Noh;J.H.Lee;A.Kimura;K.Sato;Q.Xu;T.Yoshiie;;Effects of Thermal Aging on Positron Annihilation Behaviors of ODS and Non-ODS Ferritic Steels[A];Kurri Progress Report 2009[C];2010年

10 C.KEUL;V.WIRTHS;W.BLECK;;New bainitic Steels for Forgings[A];中國(guó)金屬學(xué)會(huì)特殊鋼分會(huì)理事會(huì)暨2013年汽車(chē)零部件用高品質(zhì)特殊鋼研討會(huì)論文集[C];2013年

，

本文編號(hào)：2209989