30CrMnSiA钢轴类结构的电子束焊接工艺及力学性能研究

摘要

30CrMnSiA钢有较好的力学性能和焊接性能,是常见的航空用材.本课题选取了30CrMnSiA 厚板材和管材进行电子束焊接,研究了12mm和16mm锁底焊接的电子束焊接工艺度电子束焊接接头的拉伸性能,并分析了焊接接头的断裂情况.%30CrMnSiA Steel have good mechanical and welding properties, and il is customarily used for aircraft material. The process of 30CrMnSiA steel welded by EB is introduced, the mechanical properties,and the fracture behaviors of welds of 30CrMnSiA steel with 12mm and 16mm thickness are discussed.