Investigation on welding of wire mesh by pulsed microplasm arc welding with one-pulse-one-wire mode

被引:0
作者
Ma, Yuan [1 ]
He, Jianping [1 ]
Wu, Qichang [1 ]
Chai, Peng [1 ]
机构
[1] Shanghai Univ Engn Sci, Sch Mat Engn, 333 Longteng Rd, Shanghai 201620, Peoples R China
来源
JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING | 2024年 / 18卷 / 05期
基金
中国国家自然科学基金;
关键词
Ultrafine wire mesh; Microplasma arc welding; Pulse parameters; JOINT; PERFORMANCE; QUALITY; WHEEL;
D O I
10.1299/jamdsm.2024jamdsm0072
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
One pulse one wire mode was proposed for butt welding ultrafine 304 stainless steel wire mesh by pulsed microplasma arc welding. The weld morphologies and the resultant microstructure and mechanical properties were investigated. The results show that with an increase in duty ratio, the weld tends to vary from quasi- spherical to elliptical-spherical welds. However, the change tendency of welds is opposite when peak current rises. The microstructures in weld zone are gamma austenite and delta ferrite, and grow and increase with a rising in duty ratio at peak current 2.2 or 2.4 A though refine in the delta ferrite at peak current 2.6 A. The weld with peak current 2.2 A and duty ratio 30% performs the better mechanical properties.
引用
收藏
页数:12
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