| TWIP950在某新车型前纵梁的应用可行性研究 |
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| 引用本文： | 段吉超,杨冰,战东平,秦兴国,穆传坤,毛安,张叮. TWIP950在某新车型前纵梁的应用可行性研究[J]. 材料与冶金学报, 2018, 0(1): 62-68. DOI: 10.14186/j.cnki.1671-6620.2018.01.012 |
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| 作者姓名： | 段吉超 杨冰 战东平 秦兴国 穆传坤 毛安 张叮 |
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| 作者单位： | 东风汽车公司技术中心,武汉,430058东北大学,沈阳,110819 |
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| 摘 要： | 本文对第二代AHSS典型钢种TWIP950的机械性能包括拉伸强度、n值、r值和烘烤硬化性进行了试验.采用1.5 mm厚度TWIP950替代1.6 mm厚度DC05进行轻量化设计的前纵梁正碰仿真结果表明,使用TWIP钢在减重6.25%的同时具有更佳的吸能效果.通过冲压仿真和现场试制对两种材料的冲压成形性进行了比较,结果表明TWIP950在具有更好成形性的同时也面临更大的回弹.总之,在模具设计时进行有效的回弹控制并保证钢板理想的边缘状态,TWIP950具备在前纵梁的轻量化应用可行性.
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| 关 键 词： | TWIP950 机械性能 冲压 应力 碰撞 TWIP950 mechanical properties stamping strain anti-crash |
Feasibility study of application for TWIP950 on front longitudinal beam of a new vehicle |
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| Duan Jichao,Yang Bing,Zhan Dongping,Qin Xingguo,Mu Chuankun,Mao An,Zhang Ding. Feasibility study of application for TWIP950 on front longitudinal beam of a new vehicle[J]. Journal of Materials and Metallurgy, 2018, 0(1): 62-68. DOI: 10.14186/j.cnki.1671-6620.2018.01.012 |
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| Authors: | Duan Jichao Yang Bing Zhan Dongping Qin Xingguo Mu Chuankun Mao An Zhang Ding |
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| Abstract: | Mechanical properties of TWIP950, a typical second generation of AHSS are studied, including uniaxial tension strength, n -value, r -value and bake hardenability. Frontal impact simulation of a lightweight design by replacing 1.6 mm thick DC05 on front longitudinal beam with 1.5 mm thick TWIP950 was carried out. The results showed that it has a better energy absorption effect and a weight reduction of 6.25% for TWIP950 to replace DC05. Stamping properties of TWIP950 and DC05 were determined by simulation and trial forming process. The results revealed that TWIP950 shows a better forming ability than DC05,but it has a higher springback. The authors believe that TWIP950 is an acceptable material for the front longitudinal beams to reduce the weight, if one can effectively control the springback. |
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