国家自然科学基金(51275185)

作品数：7被引量：20H指数：3
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相关机构：华中科技大学武汉钢铁股份有限公司中国汽车工程研究院中国电子科技集团公司第三十八研究所更多>>
相关期刊：《锻压技术》《Science China(Technological Sciences)》《Transactions of Nonferrous Metals Society of China》《Engineering Sciences》更多>>
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An elasto-visco-plastic constitutive model of polypropylene incorporating craze damage behavior and its validation被引量：1
《Journal of Central South University》2017年第6期1263-1268,共6页GUI Zhong-xiang HU Xiao WANG Zi-jian 
Project(51275185)supported by the National Natural Science Foundation of China
An elasto-visco-plastic constitutive model incorporating the craze damage behavior was developed for the polypropylene(PP), by using the plastic failure model applied for the concrete, to capture the craze yielding an...
关键词：elasto-visco-plastic CONSTITUTIVE model CRAZE YIELDING stress-whitening finite element implementation 
适用于热冲压成形工艺的零件结构设计原则被引量：3
《锻压技术》2016年第8期24-28,34,共6页桂中祥 朱彬 张宜生 
国家自然科学基金资助项目(51275185);国家自然科学基金青年科学基金资助项目(51405171)
在分析热冲压成形工艺特性的基础上,结合生产实践,提出了适用于热冲压成形零件结构设计的工艺性原则:零件的成形工序应在一道热冲压工序内完成;降低翻边高度和曲率;避免圆孔翻边;拉深成形件尽量避免设计宽凸缘和深拉延(D>3d,h≥2d);拉...
关键词：热冲压成形 拉深成形 翻边 成形缺陷 零件结构设计 接触时序 温度梯度 
Temperature distribution of boron-manganese sheet metal blank by induction heating in application for hot stamping
《Engineering Sciences》2014年第5期21-27,共7页Xu Ya Liu Peixing Wang Zijian Zhang Yisheng 
National Natural Science Foundation of China （No. 51275185, No. 51405171）; Graduate Innovation and Entrepreneurship Fund of Huazhong University of Science and Technology （No. 0109070112）; Fundamental Research Funds for the Central Universities （No. 0118110621）
In order to speed up the production and save more energy in hot stamping process,the induction heating technology as a new effective heating method is considerable.Finite element(FE)-simulation and a series of experim...
关键词：telnperature distribution boron-manganese sheet induction heating hot stamping 
Fatigue behavior of press hardened Al-Si coated high strength steel
《Engineering Sciences》2014年第5期28-32,共5页Wang Zijian Gui Zhongxiang Zhang Yisheng 
National Natural Science Foundation of China （No. 51275185, No. 51405171）; National Basic Research Program of China （No. 2010CB630802-3）; Graduate Innovation and Entrepreneurship Fund of Huazhong University of Science and Technology （No. 0109070112）; Fundamental Research Funds for the Central Universities （No. 0118110621）
The fatigue behavior of press hardened Al-Si coated high strength steel has been investigated,and the fatigue strength turns out to be about 1 000 MPa.Surface morphology of fractured and non-fractured specimen has bee...
关键词：fatigue behavior high strength steel Al-Si coating CRACK 
Enhancing ductility of the Al-Si coating on hot stamping steel by controlling the Fe-Al phase transformation during austenitization被引量：7
《Science China(Technological Sciences)》2014年第9期1785-1793,共9页GUI ZhongXiang LIANG WeiKang ZHANG YiSheng 
supported by the National Natural Science Foundation of China(Grant No.51275185);the National Basic Research Program of China("973"Program)(Grant No.2010CB630802-3)
In this study, austenitizing heat treatment before hot stamping of Al-10% Si coated boron steel is first investigated through en- vironment scanning electron microscopy （ESEM） equipped with energy dispersive x-ray a...
关键词：hot stamping Al-Si coating coating crack phase transformation DUCTILITY 
Formability of aluminum-silicon coated boron steel in hot stamping process被引量：5
《Transactions of Nonferrous Metals Society of China》2014年第6期1750-1757,共8页桂中祥 梁卫抗 张宜生 
Project (51275185) supported by the National Natural Science Foundation of China
Flow behavior of the Al-Si coated boron steel was investigated with Gleeble-3500,in comparison with the uncoated one.Effect of deformation conditions on the coating integrity was characterized by optical microscopy.Fa...
关键词：hot stamping boron steel OXIDATION Al-Si coating CRACK FORMABILITY 
汽车保险杠热冲压成形及坯料形状设计被引量：4
《锻压技术》2013年第3期19-23,共5页桂中祥 张宜生 李洪庆 马鸣图 葛锐 
国家自然科学基金资助项目(51275185)
以某型号汽车的保险杠为对象,设计了全尺寸的热冲压成形模具;结合夹持和定位要求,对坯料形状进行了优化设计,通过工艺实验验证模具及板料设计的可靠性,并检验了热成形零件的微观组织及力学性能。结果表明:采用形状优化的板坯,在机械手...
关键词：热冲压成形 模具设计 坯料形状优化 数字化热成形试验线 模具温度 
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