5083铝合金板在不同温度下的伸长率及拉胀成形极限
|
摘要
通过在不同变形温度和变形速率下进行单向拉伸实验,得到5083铝合金板材的伸长率变化规律,变形速率为1 mm·min~(-1)、变形温度为350℃时,伸长率达到最大值131%。运用Dynaform模拟5083铝合金板材在不同温度下的温成形实验,并利用自行设计的温成形实验装置进行实验验证,得到了不同温度下数值模拟和物理实验的成形极限图,对比发现:随着温度的增加,铝合金板的胀形极限增加,在300℃时材料的成形极限最高。最后,模拟了5083铝合金板材在不同温度下的温拉深破裂实验,并利用铝合金板温成形实验装置进行实验验证,得到了不同温度下的板料拉深极限直径,计算出不同温度下的极限拉深系数。研究表明,极限拉深系数随着温度的增加呈高-低-高的变化规律,5083铝合金板的温成形最佳温度为250℃。
The elongation changing rule of 5083 aluminum alloy sheet was obtained by uniaxial tensile experiment at different deformation temperatures and deformation rates,and the maximum elongation is 131% at the deformation rate of 1 mm·min~(-1) and the deformation temperature of 350 ℃. Then,the warm forming experiments of 5083 aluminum alloy sheet at different temperatures were simulated by software Dynaform,and the experimental verification was conducted by the self-designed warm forming device. Furthermore,the forming limit diagrams( FLD) of numerical simulation and physical experiment were obtained at different temperatures. By contrast,it is found that the bulging limit of 5083 aluminum alloy sheet increases with the increasing of temperature,and the forming limit of material is highest at 300 ℃. Finally,the warm deep drawing rupture experiments of 5083 aluminum alloy sheet at different temperatures were simulated,and the experimental verification was conducted by the warm forming device of aluminum alloy sheet to obtain the limit drawing diameter of sheet at different temperatures. Furthermore,the limit drawing coefficient at different temperatures were calculated. The results show that the limit drawing coefficient shows a high-low-high changing rule with the increasing of temperature,and the optimum temperature of warm forming for 5083 aluminum alloy sheet is 250 ℃.
The elongation changing rule of 5083 aluminum alloy sheet was obtained by uniaxial tensile experiment at different deformation temperatures and deformation rates,and the maximum elongation is 131% at the deformation rate of 1 mm·min~(-1) and the deformation temperature of 350 ℃. Then,the warm forming experiments of 5083 aluminum alloy sheet at different temperatures were simulated by software Dynaform,and the experimental verification was conducted by the self-designed warm forming device. Furthermore,the forming limit diagrams( FLD) of numerical simulation and physical experiment were obtained at different temperatures. By contrast,it is found that the bulging limit of 5083 aluminum alloy sheet increases with the increasing of temperature,and the forming limit of material is highest at 300 ℃. Finally,the warm deep drawing rupture experiments of 5083 aluminum alloy sheet at different temperatures were simulated,and the experimental verification was conducted by the warm forming device of aluminum alloy sheet to obtain the limit drawing diameter of sheet at different temperatures. Furthermore,the limit drawing coefficient at different temperatures were calculated. The results show that the limit drawing coefficient shows a high-low-high changing rule with the increasing of temperature,and the optimum temperature of warm forming for 5083 aluminum alloy sheet is 250 ℃.
引文
[1]郭正华,李志刚,欧阳可居,等.5182铝合金板温成形工艺及摩擦学特性的研究[J].锻压装备与制造技术,2003,38(6):80-82.Guo Z H,Li Z G,Ouyang K J,et al.Study on tribology characteristics&warm forming technology of 5182 Al alloy plate[J].China Metalforming Equipment&Manufacturing Technology,2003,38(6):80-82.
[2]卢金栋.汽车用轻量化铝合金板材温成形极限研究[D].大连:大连理工大学,2014.Lu J D.Research on Warm Forming Limit of Automotive Lightweight Aluminum Alloy Sheet[D].Dalian:Dalian University of Technology,2014.
[3]李翔,唐建国,张新明,等.温变形对汽车车身用6061铝合金自然时效及力学性能的影响[J].中国有色金属学报,2016,26(1):1-6.Li X,Tang J G,Zhang X M,et al.Effect of warm deformation on natural ageing and mechanical property of aluminum alloy 6061sheets for automotive body[J].The Chinese Journal of Nonferrous Metals,2016,26(1):1-6.
[4]GB/T 228.1-2010,金属材料拉伸试验第1部分:室温试验[S].GB/T 228.1-2010,Metallic materials-Tensile testing-Part 1:Method of test at room temperature[S].
[5]GB/T 228.2-2015,金属材料拉伸试验第2部分:高温试验方法[S].GB/T 228.2-2015,Metallic materials-Tensile testing-Part 2:Method of test at elevated temperature[S].
[6]黄电源.汽车用5182铝合金温变形行为及其拉深成形性能的研究[D].长沙:中南大学,2008.Huang D Y.Study on the Deformation Behavior and Deep Drawing Performance of 5182 Aluminum Alloy for Automobile[D].Changsha:Central South University,2008.
[7]邓学峰,张辉,陈振华.耐热铝合金(FVS0812)板材温拉伸本构方程[J].塑性工程学报,2006,13(3):83-87.Deng X F,Zhang H,Chen Z H.Tensile deformation behavior of heat-resistance aluminum(FVS0812)sheet at elevated temperature[J].Journal of Plasticity Engineering,2006,13(3):83-87.
[8]李涛.温成形对高强铝合金组织和性能影响的研究[D].成都:西南交通大学,2013.Li T.Study on the Effect of Warm Forming on Microstructure and Properties of High Strength Aluminum Alloy[D].Chengdu:Southwest Jiaotong University,2013.
[9]张志强,张晓凯,何东野.6016铝合金热冲压数值模拟研究[J].锻压技术,2018,43(12):16-19.Zhang Z Q,Zhang X K,He D Y.Research on numerical simulation of hot stamping for 6016 aluminum alloy[J].Forging&Stamping Technology,2018,43(12):16-19.
[10]GB/T 15825.8-2008,金属薄板成形性能与试验方法第8部分:成形极限图(FLD)测定指南[S].GB/T 15825.8-2008,Sheet metal formability and test methodsPart 8:Guidelines for the determination of forming-limit diagrams[S].
[11]周杰.5083铝合金板温拉胀成形性能研究[D].重庆:重庆理工大学,2018.Zhou J.Study on the Temperature Forming Property of 5083 Aluminum Alloy Sheet[D].Chongqing:Chongqing University of Technology,2018.
[12]GB/T 15825.3-2008,金属薄板成形性能与试验方法第3部分:拉深与拉深载荷试验[S].GB/T 15825.3-2008,Sheet metal formability and test methods-Part 3:Drawing and drawing load test[S].
[13]赵阳.Docol1200M超高强钢板温拉胀成形性能研究[D].重庆:重庆理工大学,2013.Zhao Y.Research on the Forming Property of Docol1200M Ultra High Strength Steel with Warm Drawing and Bulging[D].Chongqing:Chongqing University of Technology,2013.
[14]刘健,申儒林,湛利华,等.2A12硬铝合金板热拉深成形极限图研究[J].锻压技术,2018,43(1):170-176.Liu J,Shen R L,Zhan L H,et al.Study on forming limit diagram of thermal drawing for hard aluminum alloy 2A12 sheet[J].Forging&Stamping Technology,2018,43(1):170-176.
[15]金飞翔,陈晓辉,王广东,等.汽车6016-T4铝合金板材成形性能实验及数值模拟[J].锻压技术,2017,42(2):28-33.Jin F X,Cheng X H,Wang G D,et al.Experiment and numerical simulation on formability of Al alloy 6016-T4 panel for automotive body[J].Forging&Stamping Technology,2017,42(2):28-33.
[2]卢金栋.汽车用轻量化铝合金板材温成形极限研究[D].大连:大连理工大学,2014.Lu J D.Research on Warm Forming Limit of Automotive Lightweight Aluminum Alloy Sheet[D].Dalian:Dalian University of Technology,2014.
[3]李翔,唐建国,张新明,等.温变形对汽车车身用6061铝合金自然时效及力学性能的影响[J].中国有色金属学报,2016,26(1):1-6.Li X,Tang J G,Zhang X M,et al.Effect of warm deformation on natural ageing and mechanical property of aluminum alloy 6061sheets for automotive body[J].The Chinese Journal of Nonferrous Metals,2016,26(1):1-6.
[4]GB/T 228.1-2010,金属材料拉伸试验第1部分:室温试验[S].GB/T 228.1-2010,Metallic materials-Tensile testing-Part 1:Method of test at room temperature[S].
[5]GB/T 228.2-2015,金属材料拉伸试验第2部分:高温试验方法[S].GB/T 228.2-2015,Metallic materials-Tensile testing-Part 2:Method of test at elevated temperature[S].
[6]黄电源.汽车用5182铝合金温变形行为及其拉深成形性能的研究[D].长沙:中南大学,2008.Huang D Y.Study on the Deformation Behavior and Deep Drawing Performance of 5182 Aluminum Alloy for Automobile[D].Changsha:Central South University,2008.
[7]邓学峰,张辉,陈振华.耐热铝合金(FVS0812)板材温拉伸本构方程[J].塑性工程学报,2006,13(3):83-87.Deng X F,Zhang H,Chen Z H.Tensile deformation behavior of heat-resistance aluminum(FVS0812)sheet at elevated temperature[J].Journal of Plasticity Engineering,2006,13(3):83-87.
[8]李涛.温成形对高强铝合金组织和性能影响的研究[D].成都:西南交通大学,2013.Li T.Study on the Effect of Warm Forming on Microstructure and Properties of High Strength Aluminum Alloy[D].Chengdu:Southwest Jiaotong University,2013.
[9]张志强,张晓凯,何东野.6016铝合金热冲压数值模拟研究[J].锻压技术,2018,43(12):16-19.Zhang Z Q,Zhang X K,He D Y.Research on numerical simulation of hot stamping for 6016 aluminum alloy[J].Forging&Stamping Technology,2018,43(12):16-19.
[10]GB/T 15825.8-2008,金属薄板成形性能与试验方法第8部分:成形极限图(FLD)测定指南[S].GB/T 15825.8-2008,Sheet metal formability and test methodsPart 8:Guidelines for the determination of forming-limit diagrams[S].
[11]周杰.5083铝合金板温拉胀成形性能研究[D].重庆:重庆理工大学,2018.Zhou J.Study on the Temperature Forming Property of 5083 Aluminum Alloy Sheet[D].Chongqing:Chongqing University of Technology,2018.
[12]GB/T 15825.3-2008,金属薄板成形性能与试验方法第3部分:拉深与拉深载荷试验[S].GB/T 15825.3-2008,Sheet metal formability and test methods-Part 3:Drawing and drawing load test[S].
[13]赵阳.Docol1200M超高强钢板温拉胀成形性能研究[D].重庆:重庆理工大学,2013.Zhao Y.Research on the Forming Property of Docol1200M Ultra High Strength Steel with Warm Drawing and Bulging[D].Chongqing:Chongqing University of Technology,2013.
[14]刘健,申儒林,湛利华,等.2A12硬铝合金板热拉深成形极限图研究[J].锻压技术,2018,43(1):170-176.Liu J,Shen R L,Zhan L H,et al.Study on forming limit diagram of thermal drawing for hard aluminum alloy 2A12 sheet[J].Forging&Stamping Technology,2018,43(1):170-176.
[15]金飞翔,陈晓辉,王广东,等.汽车6016-T4铝合金板材成形性能实验及数值模拟[J].锻压技术,2017,42(2):28-33.Jin F X,Cheng X H,Wang G D,et al.Experiment and numerical simulation on formability of Al alloy 6016-T4 panel for automotive body[J].Forging&Stamping Technology,2017,42(2):28-33.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |