2024合金蒙皮板化铣粗糙度超标成因分析  

Analysis on the causes of excessive roughness of 2024 alloy skin plate in milling

作　　者：冯旺 Feng Wang(Southwest Aluminum(Group)Co.,Ltd.,Chongqing 401326,China)

机构地区：[1]西南铝业(集团)有限责任公司,重庆401326

出　　处：《铝加工》2023年第4期53-58,共6页Aluminium Fabrication

摘　　要：对2024-O、2024-T4、2524-T3和进口2024-T4样品进行化铣粗糙度检测,并对相应的化学成分、显微组织特征进行了对比分析。结果表明,2024合金蒙皮板材化铣粗糙度超标是由显微组织中残留化合物相数量多、尺寸大引起的。通过降低Cu含量,严格控制杂质元素Fe含量,可有效降低2024蒙皮板材的化铣粗糙度。The milling roughness of 2024-O,2024-T4,2524-T3 and imported 2024-T4 samples was tested,and the corresponding chemical composition and microstructure characteristics were compared and analyzed.The results show that the excessive roughness of 2024 alloy skin plate in milling is caused by the large amount and size of residual compound phases in the microstructure.By reducing the Cu content and strictly controlling the impurity element Fe content,the roughness of 2024 alloy skin plate in milling can be effec⁃tively reduced.

关 键 词：2024铝合金 化铣粗糙度 腐蚀坑 化合物 

分 类 号：TG146.21[一般工业技术—材料科学与工程]