Evaluation of Joint Strength and Process Parameters in Aluminium-Stainless Steel by Electromagnetic Pulse Welding

IF 1.9 4区工程技术 Q3 ENGINEERING, MECHANICAL

Experimental Techniques Pub Date : 2025-03-05 DOI:10.1007/s40799-025-00787-4

A. Bhargav, M. Ahmed, K.S. Gavel, A. Ali, M. Lodhe

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引用次数: 0

Abstract

Electromagnetic pulse welding (EMPW) is a solid-state joining technique for similar and dissimilar metals. In present work, analysis of the joining between aluminium (AA6061) and stainless steel (SS316) is attempted. A numerical analysis is carried out to establish the relation between electromagnetic and mechanical parameters such as current density, magnetic field, lorentz force, velocity, temperature, and load-bearing capacity. The aluminium alloy tube is joined with the steel rod at varying operating parameters such as voltage (19 and 20 kV), energy (30 and 36.1 kJ), capacitance (150 and 200µF), stand-off distance (1.0, 1.5, 2.0, and 2.5 mm). The joint strength of 114 MPa was obtained at 2.0 mm SOD for 30 kJ of energy and 460 m/sec of impact velocity. Microstructural analysis confirms the formation of wavy and micro-porous interfaces. A severe plastic deformation causes the localized melting of the interface, leading to intermetallic phase formation. A high hardness of ~ 520HV_0.5 was observed at the interface as compared to base metals. A leak-proof test using the hydraulic pressure technique shows no leakage at 100 kg/cm² pressure.

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电磁脉冲焊接铝-不锈钢接头强度及工艺参数评价

电磁脉冲焊接是一种异种金属的固态连接技术。本文对铝（AA6061）与不锈钢（SS316）的连接进行了分析。通过数值分析，建立了电流密度、磁场、洛伦兹力、速度、温度和承载能力等电磁参数与力学参数之间的关系。铝合金管与钢棒在不同的工作参数下连接，如电压（19和20kv）、能量（30和36.1 kJ）、电容（150和200µF）、距离（1.0、1.5、2.0和2.5 mm）。在2.0 mm SOD条件下，能量为30 kJ，冲击速度为460 m/sec，接头强度为114 MPa。微观结构分析证实了波浪状和微孔界面的形成。剧烈的塑性变形导致界面局部熔化，形成金属间相。与母材相比，界面处的硬度高达~ 520HV0.5。采用液压技术进行的防泄漏试验表明，在100kg /cm2的压力下无泄漏。

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

Experimental Techniques 工程技术-材料科学：表征与测试

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

5.2 months

期刊介绍： Experimental Techniques is a bimonthly interdisciplinary publication of the Society for Experimental Mechanics focusing on the development, application and tutorial of experimental mechanics techniques. The purpose for Experimental Techniques is to promote pedagogical, technical and practical advancements in experimental mechanics while supporting the Society''s mission and commitment to interdisciplinary application, research and development, education, and active promotion of experimental methods to: - Increase the knowledge of physical phenomena - Further the understanding of the behavior of materials, structures, and systems - Provide the necessary physical observations necessary to improve and assess new analytical and computational approaches.