宋刚

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:材料连接技术

办公地点:材料学院铸造工程中心406

联系方式:0411-84707817

电子邮箱:songgang@dlut.edu.cn

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高强钢低功率脉冲激光诱导熔化极活性气体保护电弧仰焊成形

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发表时间:2020-01-01

发表刊物:Zhongguo Jixie Gongcheng/China Mechanical Engineering

卷号:31

期号:17

页面范围:2137-2141

ISSN号:1004-132X

摘要:A low-power pulsed laser induced metal active gas(MAG) arc hybrid welding tests in overhead positions were carried out for 5mm thick E36 high strength steel plates. The results show that heat input of laser induced MAG arc hybrid welding is 29% lower than that of single arc welding. By reducing weld pool sizes, hybrid welding may effectively inhibit the formation of concave defects, and then increase the processsing parameter ranges. Tensile tests and bending tests show that the welding joints without internal concave defects have good static tensile strength and bending load. Static tensile strength of the welding joints with internal concave is equivalent to the base metal, but the maximum bending load is significantly reduced. © 2020, China Mechanical Engineering Magazine Office. All right reserved.

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