动车组用铝型材挤压和机加工过程中裂纹缺陷的产生及改进

Generation of Cracking Defects in the Process of Extrusion and Machining of Aluminum Sections for Multiple Units and the Improvements

分析了动车组用铝型材在挤压成型、机加工过程中产生裂纹的特点及成因,并提出了相应的改进控制方案。

The characteristics and causes to cracking in the process of extrusion and machining of aluminum sections for multiple units are analyzed,and the relevant improvement control scheme is given.