Thermal Process of Additive Manufacturing Double-electrode Micro-plasma Arc Welding

被引：0

作者：

Yu S. ^{[1
]}

Cheng N. ^{[1
]}

Huang J. ^{[2
]}

Li N. ^{[2
]}

Fan D. ^{[2
]}

机构：

[1] School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou

[2] State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou

来源：

Cailiao Daobao/Materials Review | 2019年 / 33卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Double-electrode micro-plasma arc welding; Thermal process; Wire arc additive manufacture;

D O I：

10.11896/cldb.201901019

中图分类号：

学科分类号：

摘要：

The thermal physical process of bypass coupling micro plasma arc welding in additive manufacturing process was studied. Concretely, the thermal cycle curves were measured by K type thermocouple at various welding speeds, bypass currents and stacking sequences in stacking forming. And the influence of each parameter on the thermal process was analyzed. The results show that the heat input of the base metal declines with the increase of welding speed. In appropriate range of bypass current, enlarging the bypass current can reduce the heat input of the base metal. Meanwhile, the unidirectional stacking shows better heat dissipation than reciprocating stacking. The control of thermal process of bypass coupling micro plasma arc welding in additive manufacturing can be realized by precise control of bypass current and reasonable plan of stacking path. © 2019, Materials Review Magazine. All right reserved.

引用

页码：162 / 166

页数：4

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