汽车冲压外覆盖件高点高度影响因素及控制阈值  

Influencing factors and control threshold of high point height of automobile stamping outer panel

作　　者：姚士聪 郝玉林 龙袁 郑学斌 刘李斌 李学涛 孙鹏 YAO Shicong;HAO Yulin;LONG Yuan;ZHENG Xuebin;LIU Libin;LI Xuetao;SUN Peng(Research Institute of Technology of Shougang Group Co.,Ltd.,Beijing 100043,China;Beijing Key Laboratory of Green Recyclable Process for Iron&Steel,Beijing 100043,China;Beijing Shougang Co.,Ltd.,Beijing 100041,China)

机构地区：[1]首钢集团有限公司技术研究院,北京100043 [2]绿色可循环钢铁流程北京市重点实验室,北京100043 [3]北京首钢股份有限公司,北京100041

出　　处：《理化检验（物理分册）》2023年第12期16-20,共5页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：对汽车冲压外覆盖件高点的形成过程及机制进行解析,研究了异物种类及尺寸、板材厚度以及模具间隙对高点高度的影响规律,同时研究了汽车冲压覆盖件高点高度对涂装后长波、短波及鲜映性的影响。结果表明:随着异物颗粒直径以及弹性模量的增大,高点高度增大;随着板材厚度的增大,高点高度增大;随着模具间隙的减小,高点高度增大;长波随高点高度的增大而增大,呈正相关关系,短波、鲜映性与高点高度关系较弱,某主机厂冲压车间高点高度控制阈值为10.5μm。The formation process and mechanism of the high point of the automobile stamping outer covering were analyzed.The influence of the type and size of the foreign body,the thickness of the plate and the die gap on the high point height was studied.At the same time,the influence of the high point height of the automobile stamping covering on the long wave,short wave and fresh reflection after coating was studied.The results show that the height of high point increased with the increase of particle diameter and elastic modulus.As the thickness of the plate increased,the height of the high point increased,with the decrease of the die clearance,the height of the high point increased.The long wave increased with the increase of the height of the high point,and there was a positive correlation.The relationship between short wave,freshness and the height of the high point was weak.The control threshold of the height of the high point in the stamping workshop of a main engine factory was 10.5μm.

关 键 词：冲压外覆盖件 高点 异物 涂装质量 

分 类 号：TG386.1[金属学及工艺—金属压力加工] TB31[一般工业技术—材料科学与工程]