合金化热镀锌钢板冲压后表面小亮点的成因分析

Cause Analysis of Little Bright Dots on Surface of Galvannealed Steel Sheets after Press Forming

简介了合金化热镀锌钢板在冲压后出现小亮点缺陷的试验研究 ,据此进行了调查、分析以及模拟冲压试验 ,找出形成小亮点缺陷的一个直接原因 。

Research on appearance of little bright dots on surface of the galvannealed steel sheet after press forming has been made and described briefly.Through investigation,analysis and analogue punching tests,the root causes of the appearance of small bright dots have been found out and corresponding improvement measures have been brought forward.