锻压技术

6000系铝合金卷料矫直参数范围试验研究

英文标题：Experimental research on straightening parameter range of 6000 series aluminum alloy coil

作者：苏然何磊

单位：北京奔驰汽车有限公司

分类号：TG386

出版年,卷(期):页码：2021,46(2):87-93

摘要：

冲压件生产中，开卷落料的矫直参数直接影响了板料面品质量和材料性能，进而影响成形性。为了确定可靠的矫直参数范围、保证开卷后板料的面品质量和材料性能，进而有效指导开卷落料生产，以机盖外板为例进行研究。所用材料为6000系AlSiMg合金，材料厚度为1 mm，材料性能偏上限需求，通过调整矫直参数（矫直机入口高度）得到不同性能的材料，并利用CAE分析、实际生产验证、后工序合边验证等方法，最终确定了机盖的矫直参数≥-0.6 mm（矫直机入口高度≥-0.6 mm）。其他在产零件可依据此方法确定矫直参数范围，减少停机时间，降低材料不合格风险，提高生产效率，降低生产成本。

In the production of stamping parts, the straightening parameters of uncoil blanking directly affects the surface quality and material performance of sheet, and then affects its formability. In order to determine the reliable straightening parameter range, ensure the surface quality and material performance of sheet after uncoiling, and effectively guide uncoiling and blanking production, the hood outer panel was studied. The studied material was AlSiMg alloy of 6000 series with the material thickness of 1 mm, and the material performance was close to the upper limit of the requirement. Then, the materials of different performances were obtained by adjusting the straightening parameter (the height of straightener entrance). And it is confirmed finally that the straightening parameter of hood is more than -0.6 mm (the height of straightener entrance ≥-0.6 mm) by CAE analysis, actual production verification, following hemming process verification and other methods. According to this method, the straightening parameter range of other parts in the production can be determined to reduce the downtime, reduce the risk of unqualified materials, improve the production efficiency and reduce the production costs.

基金项目：

苏然（1986-），女，学士，工程师，E-mail：563703488@qq.com

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