焊接参数对904L级钢电阻点焊接头强度的影响

V. Kalyankar, Nitin Chouhan
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引用次数: 0

摘要

对904L超级奥氏体不锈钢的电阻点焊进行了试验研究,发现其在汽车领域具有相当大的适用性。然而,由于复杂的工艺参数的工作范围导致焊接接头的关键力学和冶金变化,这种材料的连接遇到了困难。重点研究了焊接时间、电流、电极压力、挤压时间等重要工艺参数对焊缝强度的影响。提出了多种工艺参数对材料抗拉抗剪强度综合影响的数学模型,为科学研究提供了理论依据。在目前的设置中,最重要的参数是电极压力,其次是其他参数。TSS随着电极压力的增加而减小,达到一定程度后开始增大,随着挤压时间的增加TSS逐渐增大并保持不变。
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Effect of weld parameters on joint strength of 904L grade steel using resistance spot welding
Experimental investigation on resistance spot welding of 904L super austenitic stainless steel, which is finding its considerable applicability in automobile sector, is presented in this work. However, joining of this material involves difficulties due to complex working range of process parameters leading to critical mechanical and metallurgical changes in the weld joint. More focus is given on effect of important process parameters like weld time, current, electrode pressure and squeeze time on strength of weld joint. A mathematical model is proposed to understand the combined effect of multiple processing parameters on tensile shear strength (TSS) which can be beneficial to scientific community to get enhanced results. For the present setup, more significant parameter is electrode pressure followed by other parameters. TSS decreases with increase in electrode pressure up to certain level and then starts increasing while TSS increases with increase in squeeze time and subsequently it remains constant.
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来源期刊
CiteScore
1.20
自引率
0.00%
发文量
3
期刊介绍: IJCMSSE is a refereed international journal that aims to provide a blend of theoretical and applied study of computational materials science and surface engineering. The scope of IJCMSSE original scientific papers that describe computer methods of modelling, simulation, and prediction for designing materials and structures at all length scales. The Editors-in-Chief of IJCMSSE encourage the submission of fundamental and interdisciplinary contributions on materials science and engineering, surface engineering and computational methods of modelling, simulation, and prediction. Papers published in IJCMSSE involve the solution of current problems, in which it is necessary to apply computational materials science and surface engineering methods for solving relevant engineering problems.
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