电焊机2024，Vol.54Issue(12)：21-27,48,8.DOI:10.7512/j.issn.1001-2303.2024.12.04
船用新型TA3钛板手持激光填丝焊接头组织与力学性能研究
Study on the Microstructure and Mechanical Properties of New TA3 Titanium Plate Handheld Laser Wire Filling Welding Joint for Ships
丁正祥 1王彦龙 2曹旭武 1闫德俊 3陈红亮 1裴晓霖1
作者信息
- 1. 中船黄埔文冲船舶有限公司 广东省舰船先进焊接技术重点实验室,广东 广州 510715
- 2. 海军驻广州地区第一军事代表室,广东 广州 510715
- 3. 佛山大学 广东省舰船先进焊接技术重点实验室,广东 佛山 528225
- 折叠
摘要
Abstract
In order to solve the problems of small weld foot size,difficulty in controlling porosity,and lack of fusion in the new type of TA3 titanium structure laser fillet weld joint for ships,a handheld laser swing welding mode for TA3 titanium structure fillet weld joint was proposed.The key process parameters such as swing characteristics,laser power,welding speed,and defocus amount were systematically optimized,and the surface gloss,microstructure,and mechanical properties of the fillet weld joint were analyzed.The results show that the surface of the weld and the heat affected zone appear silver white,and there are no surface defects in the dye penetration test;The macroscopic cross-sectional morphology shows good formation,complete penetration of the weld seam,and no welding defects were found,which can achieve a weld foot size of 3mm or more.The metallographic structure and grain size of each area of the joint are good,and there are no defects such as microcracks,porosity and inclusions.The T-shaped bending performance and tensile shear strength of the cross joint of the handheld laser filled wire corner seam welding component are comparable to those of TIG/MIG welding,with slightly better fatigue performance and good mechanical properties.By studying the welding process of handheld laser wire filling welding on the corner seam of TA3 titanium plate,a new solution is provided for the efficient production and quality assurance of new marine TA3 titanium structures.关键词
船用新型TA3钛板/手持激光填丝焊/接头组织/力学性能Key words
marine new TA3 titanium plate/handheld laser wire filling welding/joint organization/mechanical property分类
矿业与冶金引用本文复制引用
丁正祥,王彦龙,曹旭武,闫德俊,陈红亮,裴晓霖..船用新型TA3钛板手持激光填丝焊接头组织与力学性能研究[J].电焊机,2024,54(12):21-27,48,8.
