Al-Mg-Si系铝合金型材橘皮缺陷原因分析  

Cause Analysis of Orange Peel defect of Al-Mg-Si Series Aluminum Alloy profile

作　　者：纪圆 Ji Yuan(Liaoning Zhongwang Group Co.,Ltd.,Liaoning Liaoyang 111003)

机构地区：[1]辽宁忠旺集团有限公司,辽宁辽阳111003

出　　处：《汽车实用技术》2020年第19期202-204,共3页Automobile Applied Technology

摘　　要：文章通过组织和性能分析,探讨了Al-Mg-Si系铝合金型材在拉弯过程中橘皮现象的产生原因,确认了缺陷产生是因为晶粒尺寸不均匀性较大,导致变形不均匀,最终形成宏观橘皮现象。改善建议包括适当增加Mn、Cr合金含量和降低拉伸矫直与预拉伸的拉伸量。In this paper,through the analysis of microstructure and properties,the cause of orange peel phenomenon of Al-Mg-Si aluminum alloy profile during tension and bending is discussed,and it is confirmed that the defect is caused by the non-uniformity of grain size,which leads to non-uniform deformation,and finally forms the macroscopic orange peel phenomenon.Suggestions for improvement include properly increasing the content of Mn and Cr alloys and reducing the amount of tension during tension straightening and pre-stretching.

关 键 词：6061合金 挤压 拉弯 橘皮现象 

分 类 号：TG14[一般工业技术—材料科学与工程]