汽车覆盖件用钢板的抗凹性能研究  

Research on Dent Resistance Properties of Steel Sheets for Automotive Outer Panel

作　　者：张龙柱 王连轩 李晓广 万鑫铭[2] 周佳[2] ZHANG Longzhu;WANG Lianxuan;LI Xiaoguang;WAN Xinming;ZHOU Jia(Han Gang Company,He Gang Group,Handan 056015,China;China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 401122,China)

机构地区：[1]河钢集团邯钢公司,河北邯郸056015 [2]中国汽车工程研究院股份有限公司,重庆401122

出　　处：《热加工工艺》2022年第7期40-43,47,共5页Hot Working Technology

基　　金：国家重点研发计划项目(2016YFB0101607)。

摘　　要：以汽车外覆盖件常用的两种薄板HC180BD+Z和DX53D+Z为研究对象,通过一次加载和循环增量加载的方式研究了材料在不同厚度和受力状态下的抗凹性能。结果表明,材料的厚度、力学性能、预变形状态和热处理工艺均对材料的抗凹性能产生影响。厚度是影响材料抗凹性能的决定性因素,预变形对材料抗凹性能影响具有双重作用,热处理工艺通过改变材料力学性能影响其抗凹性能。Taking two kinds of sheet HC180BD+Z and DX53D+Z commonly used in automobile outer covering parts as the research object, the anti-concave properties of materials under different thickness and stress state were studied by one loading and cyclic incremental loading. The results indicate that the thickness, mechanical properties, pre-deformation state and heat treatment process of the materials affect the dent resistance. The thickness is the decisive factor affecting the concave resistance of the materials, the pre-deformation has dual effect on the anti-concave property of the material, and the heat treatment process affects the concave resistance of the material by changing the mechanical properties of the material.

关 键 词：抗凹性 汽车覆盖件 HC180BD+Z钢板 DX53D+Z钢板 

分 类 号：TG386.1[金属学及工艺—金属压力加工]