Tensile and microstructural behavior of gas tungsten arc welded electrolytic tough pitch copper joints

IF 1.3 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Emerging Materials Research Pub Date : 2023-09-01 DOI:10.1680/jemmr.23.00012

Veeraswamy Amarnath, Palaniswamy Karuppusamy, C. Rajendran

引用次数: 1

Abstract

Electrolytic Tough Pitch (ETP) copper is extensively used in the manufacturing of electrical machines and automobiles. Compared to other pure coppers, ETP copper has lower weldability. Therefore, this study analyzes the weldability of ETP copper using the Gas Tungsten Arc Welding (GTAW) process. GTAW can be performed using Constant Current (CC) and Pulsed Current (PC) modes. Consequently, the properties of the joints fabricated using both modes are compared and analyzed in this study. The results show that the joint efficiencies of GTAW-CC and GTAW-PC joints are 81% and 89%, respectively. The optimal heat input and pulsating action in pulsed current mode produce refined grains in the weld zone and heat-affected zone, resulting in higher joint efficiency.

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钨气弧焊电解韧距铜接头的拉伸和显微组织行为

电解韧性铜(ETP)广泛用于电机和汽车制造。与其他纯铜相比，ETP铜的可焊性较低。因此，本研究采用钨极气体保护焊(GTAW)工艺对ETP铜的可焊性进行了分析。GTAW可以使用恒流(CC)和脉冲电流(PC)模式进行。因此，本研究对两种模式下的接头性能进行了比较和分析。结果表明:GTAW-CC和GTAW-PC接头接头效率分别为81%和89%;在脉冲电流模式下，最优的热输入和脉动作用使焊缝区和热影响区晶粒细化，提高了接头效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Emerging Materials Research MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

9.10%

发文量

期刊介绍： Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.