Investigations on force generation and joint properties of dissimilar thickness friction stir corner welded AA 5086 alloy

IF 0.7 Q3 ENGINEERING, MULTIDISCIPLINARY Engineering Review Pub Date : 2020-01-27 DOI:10.30765/er.40.1.09

M. Krishnan, Senthilkumar Subramaniam

引用次数: 1

Abstract

The force generation, joint mechanical and metallurgical properties of friction stir corner welded non-heat treatable AA 5086 aluminum alloy are investigated in this paper. The friction stir welding process is carried out with the plate thicknesses of 6 mm and 4 mm. The welding speed, tool rotational speed and tool plunge depth were considered as the process parameters to conduct the welding experiments. The machine spindle motor current consumption and tool down force generation during friction stir welding were analyzed. The microstructures of various joint regions were observed. The tensile samples revealed the tensile strength of 197 MPa with tool rotational and welding speeds of 1,000 rev/min and 150 mm/min respectively, which is 78 % of parent material tensile strength. A maximum micro hardness of 98 HV was observed at thermomechanically joint affected zone, which was welded with tool rotation of 1,000 rev/min and welding speed of 190 mm/min.

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不同厚度AA 5086合金搅拌摩擦角焊力产生及接头性能研究

研究了搅拌摩擦角焊非热处理AA 5086铝合金的受力、接头力学和冶金性能。采用6mm和4mm两种板厚进行搅拌摩擦焊接工艺。以焊接速度、刀具转速和刀具插入深度为工艺参数进行焊接试验。分析了搅拌摩擦焊过程中机床主轴、电机的电流消耗和刀具下压力的产生。观察了接头各区域的显微组织。拉伸试样显示，当刀具转速为1000转/分、焊接速度为150毫米/分时，合金的抗拉强度为197 MPa，为母材抗拉强度的78%。在刀具转速为1000转/分钟，焊接速度为190 mm/min的条件下，热接头影响区显微硬度最高可达98 HV。

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

Engineering Review ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering Review is an international journal designed to foster the exchange of ideas and transfer of knowledge between scientists and engineers involved in various engineering sciences that deal with investigations related to design, materials, technology, maintenance and manufacturing processes. It is not limited to the specific details of science and engineering but is instead devoted to a very wide range of subfields in the engineering sciences. It provides an appropriate resort for publishing the papers covering prior applications – based on the research topics comprising the entire engineering spectrum. Topics of particular interest thus include: mechanical engineering, naval architecture and marine engineering, fundamental engineering sciences, electrical engineering, computer sciences and civil engineering. Manuscripts addressing other issues may also be considered if they relate to engineering oriented subjects. The contributions, which may be analytical, numerical or experimental, should be of significance to the progress of mentioned topics. Papers that are merely illustrations of established principles or procedures generally will not be accepted. Occasionally, the magazine is ready to publish high-quality-selected papers from the conference after being renovated, expanded and written in accordance with the rules of the magazine. The high standard of excellence for any of published papers will be ensured by peer-review procedure. The journal takes into consideration only original scientific papers.