压头直径对汽车底盘用防撞吸能铝合金型材弯曲性能影响研究  

Study on Influence of Indenter Diameter on Bending Properties of Anti-Collision Energy Absorbing Aluminium Alloy Profiles for Automobile Chassis

作　　者：杨丽 耿庆涛 祝哮 吴海旭 静宇 YANG Li;GENG Qingtao;ZHU Xiao;WU Haixu;JING Yu(Liaoning Zhongwang Group Co.,Ltd.,Liaoyang 111003,China)

机构地区：[1]辽宁忠旺集团有限公司,辽宁辽阳111003

出　　处：《铝加工》2024年第6期12-15,共4页Aluminium Fabrication

基　　金：国家重点研发计划课题(2023YFB3710902)。

摘　　要：以某公司生产的汽车底盘用6008防撞吸能铝合金型材为研究对象,设计采用0.4、0.8、1.5、2和3 mm等5种不同直径的压头,分别对6008-T4和6008-T7铝合金进行纵向及横向弯曲试验,通过对最大弯曲力、弯曲角度及弯曲后表面宏观形貌等进行分析观察,研究压头直径对6008铝合金纵向及横向弯曲性能的影响。结果显示:6008-T4铝合金在纵向和横向上均具有良好的塑性,压头直径的改变对其纵向和横向弯曲角度影响不大,随着压头直径的增加,纵向和横向弯曲力逐渐降低;6008-T7铝合金纵向弯曲性能优于横向弯曲性能,随着压头直径的增加,其纵向弯曲力及弯曲角度逐渐增大,横向弯曲力呈逐渐降低趋势,弯曲角度无明显变化。Taking 6008 anti-collision energy absorption aluminium alloy profiles for automobile chassis produced by a company as the research object,five different indenters with diameters of 0.4,0.8,1.5,2 and 3 mm were designed to conduct longitudinal and transverse bending tests on 6008-T4 and 6008-T7 aluminium alloys,respectively.By analyzing and observing the maximum bending force,bending angle and the macromorphology of the surface after bending,the influence of the diameter of the indenter on the longitudinal and transverse bending properties of 6008 aluminium alloy was studied.The results show that 6008-T4 aluminum alloy has good longitudinal and transverse plasticity,the change of indenter diameter has little effect on the longitudinal and transverse bending angles,and the longitudinal and transverse bending forces decrease gradually with the increase of the diameter of the indenter.The longitudinal bending properties of 6008-T7 aluminium alloy are superior to the transverse bending properties.With the increase of the diameter of the indenter,the longitudinal bending force and bending angle gradually increase,while the transverse bending force shows a gradually decreasing trend,and the bending angle does not change significantly.

关 键 词：压头直径 汽车 防撞吸能 铝合金 弯曲 

分 类 号：TG146.21[一般工业技术—材料科学与工程]