Study of joining copper-mild steel using microwave energy

Q4 Materials Science

Welding International Pub Date : 2023-01-02 DOI:10.1080/09507116.2022.2162460

S. Singh, R. M. Belokar

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引用次数: 1

Abstract

Abstract In the present work, joining of dissimilar metals using electromagnetic energy has been successfully achieved. A 900 W multimode microwave applicator at the fixed frequency of 2450 MHz was used to generate the required heat energy for joining. Copper (Cu) and mild steel (MS) were chosen as the base material to be joined. Copper metal powder in the form of the thick slurry was prepared and used as a joining agent between two bulk interfaces. The joining process was carried out through the controlled emission of microwaves at a particular area for a particular period of time. Due to these controlled emissions of microwaves, the slurry of metal powder got melted and produced a fine bond with the bulk interfaces on cooling. To understand the nature of the joint formation, joints were characterized by using an optical microscope, SEM, X-ray diffractometer, microhardness tester, and Universal testing machine. Analysis of SEM resulted in a well-defined, merged, and fused joint. The microhardness at the joint zone was recorded to be 73 ± 4 HV and 78 ± 6 HV on copper side and MS side respectively. Strength test results showed the UTS of 170 MPa with 13.25% elongation.

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微波能连接铜-低碳钢的研究

摘要在本工作中，利用电磁能成功地实现了异种金属的连接。A 900 W多模微波辐射器，固定频率2450 使用MHz来产生接合所需的热能。选择铜（Cu）和软钢（MS）作为待连接的基材。制备了厚浆状的铜金属粉末，并将其用作两个本体界面之间的连接剂。接合过程是通过在特定区域控制微波发射特定时间段来进行的。由于这些可控的微波发射，金属粉末的浆料被熔化，并在冷却时与本体界面产生精细的结合。为了了解接头形成的性质，使用光学显微镜、扫描电镜、X射线衍射仪、显微硬度计和万能试验机对接头进行了表征。扫描电镜的分析结果是一个明确的，合并和融合的关节。接头区的显微硬度记录为73 ± 4 HV和78 ± 铜侧和MS侧分别为6 HV。强度测试结果显示UTS为170 MPa，伸长率为13.25%。

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

Welding International Materials Science-Metals and Alloys

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： Welding International provides comprehensive English translations of complete articles, selected from major international welding journals, including: Journal of Japan Welding Society - Japan Journal of Light Metal Welding and Construction - Japan Przeglad Spawalnictwa - Poland Quarterly Journal of Japan Welding Society - Japan Revista de Metalurgia - Spain Rivista Italiana della Saldatura - Italy Soldagem & Inspeção - Brazil Svarochnoe Proizvodstvo - Russia Welding International is a well-established and widely respected journal and the translators are carefully chosen with each issue containing a balanced selection of between 15 and 20 articles. The articles cover research techniques, equipment and process developments, applications and material and are not available elsewhere in English. This journal provides a valuable and unique service for those needing to keep up-to-date on the latest developments in welding technology in non-English speaking countries.