装甲级AA5083铝合金FSW和UWFSW对接接头的特性：工具销轮廓的影响。

Attributes of FSW and UWFSW butt joints of armour grade AA5083 aluminium alloy: Impact of tool pin profile.

作者信息

Saravanakumar R, Sirohi Sachin, Pandey Shailesh M, Rajasekaran T, Pandey Chandan

机构信息

Department of Mechanical Engineering SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India.

Department of Mechanical Engineering, SRM Institute of Science and Technology, Delhi NCR Campus, Modi Nagar, Uttar Pradesh, 201204, India.

出版信息

Heliyon. 2024 Sep 24;10(19):e38351. doi: 10.1016/j.heliyon.2024.e38351. eCollection 2024 Oct 15.

DOI:10.1016/j.heliyon.2024.e38351

PMID:39397915

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11470504/

Abstract

AA5083 is an alloy of military-grade aluminum used to make lightweight combat vehicles. Combining this material with traditional welding methods results in the formation of grain agglomerations, alloy separation, porosity, and pores. To overcome these shortcomings, Friction stir welding was utilized. In this work, the problems arising from friction stir welding are reduced by performing the process underwater. A relative study was also conducted to determine the impact of various tool pin profiles. particularly straight hexagonal, straight cylindrical, straight threaded, and tapered cylindrical. Friction stir welding and Underwater friction stir welding were used for welding Aluminium alloy AA5083 alloys of 150 x100 × 6 mm, constant tool rotational speed of 1200 rpm, tool transverse speed of 40 mm/min, and tool tilt angle of 0°. This study revealed that the straight hexagonal pin produced joint in an underwater cooling medium had a greater tensile strength (UTS) of 295 MPa and a joint efficiency of 78 %.

摘要

AA5083是一种用于制造轻型战车的军事级铝合金。将这种材料与传统焊接方法相结合会导致晶粒团聚、合金分离、气孔和孔隙的形成。为了克服这些缺点，采用了搅拌摩擦焊。在这项工作中，通过在水下进行搅拌摩擦焊工艺，减少了该工艺产生的问题。还进行了一项相关研究，以确定各种工具销轮廓的影响。特别是直六边形、直圆柱形、直螺纹和锥形圆柱形。搅拌摩擦焊和水下搅拌摩擦焊用于焊接尺寸为150×100×6毫米的AA5083铝合金，工具恒定转速为1200转/分钟，工具横向速度为40毫米/分钟，工具倾斜角度为0°。这项研究表明，在水下冷却介质中使用直六边形销产生的接头具有更高的抗拉强度（UTS），为295兆帕，接头效率为78%。