电焊机2017，Vol.47Issue(4)：112-116,5.DOI:10.7512/j.issn.1001-2303.2017.04.24
转向架用钢激光-MAG复合焊角焊缝
Research on fillet in laser-MAG hybrid welding of SMA490BW weathering steel for bogie
于龙 1卢衍祥 1张作仁 1巩全军1
作者信息
- 1. 中车青岛四方机车车辆股份有限公司,山东青岛266111
- 折叠
摘要
Abstract
There are numerous comer joints in the welding of weathering steel for bogies in express train.As the main bearing parts of a train,a complete penetration is demanded when welding bogie.In this paper,12 mm thickness SMA490BW weathering steel is respectively tested with MAG welding and Laser-MAG hybrid welding to compare the macro-morphology;microstructure and mechanical properties of the comer joints obtained from these two welding methods.The results show that the laser-MAG hybrid welding joints have ideal microstructures and excellent mechanical properties in contrast with MAG welding;therefore,laser-MAG hybrid welding can replace MAG welding for bogie.关键词
转向架/角接接头/激光-MAG复合焊/接头组织/力学性能Key words
bogie/comer joint/laser-MAG hybrid welding/microstructure/mechanical property分类
矿业与冶金引用本文复制引用
于龙,卢衍祥,张作仁,巩全军..转向架用钢激光-MAG复合焊角焊缝[J].电焊机,2017,47(4):112-116,5.
