Influence of Welding Parameters on Weld Timings, Temperature Variation and Mechanical Strength of Friction Stir Welded AA6061 and AA6082 Alloy

Q4 Energy

Journal of Mines, Metals and Fuels Pub Date : 2024-07-22 DOI:10.18311/jmmf/2024/44426

S. Prashantha, B. R. Omkaresh

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引用次数: 0

Abstract

Friction stir welding is a type of welding that creates friction using a stirring tool while the work-pieces are held together in the welding joint configuration. Friction stir welding is a solid-state welding process. It is one of the efficient ways of joining technology of materials. The friction forces at a microscopic level to change the inner structure of metal properties and it is done by using the kinetic energy of friction in welding methods. This work is majorly carried out to optimize the process parameters like tool rotational speed, Feed, ultimate tensile strength of friction stir welded joint on AA6061 and AA6082 alloy. Welding speed and temperature variation in the workpiece during the welding is recorded for different trials. Failure analysis was carried out for different fractured surfaces by using Scanning Electron Microscope (SEM) revels ductile fracture due to micro void coalescence. The maximum ultimate tensile strength was at a speed of 900 rpm, feed 31.5 mm/min indicates high joint efficiency. Welding speed is more at the feed 90mm/min. Maximum rise in the temperature is at speed 2000 rpm and feed 90 mm/min.

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焊接参数对摩擦搅拌焊接 AA6061 和 AA6082 合金的焊接时间、温度变化和机械强度的影响

搅拌摩擦焊是一种利用搅拌工具产生摩擦力的焊接方式，同时工件以焊接接头的形式固定在一起。搅拌摩擦焊是一种固态焊接工艺。它是材料连接技术的有效方法之一。摩擦力在微观层面上改变了金属的内部结构，它是利用焊接方法中的摩擦动能实现的。这项工作的主要目的是优化工艺参数，如工具转速、进料量、AA6061 和 AA6082 合金搅拌摩擦焊接接头的极限拉伸强度。记录了不同试验的焊接速度和焊接过程中工件的温度变化。使用扫描电子显微镜（SEM）对不同断裂表面进行了断裂分析，结果表明，由于微空隙凝聚，断裂呈韧性。在转速为 900 rpm、进料速度为 31.5 mm/min 时，极限拉伸强度最大，这表明焊接效率很高。焊接速度在进料 90 毫米/分钟时更快。在转速为 2000 rpm、进给速度为 90 mm/min 时，温度升幅最大。

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

Journal of Mines, Metals and Fuels Energy-Fuel Technology

CiteScore

0.20

自引率

0.00%

发文量

101