The influence of welding parameters on macrostructure and mechanical properties of Sc-modified AA2519-T62 FSW joints

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Review Pub Date : 2020-01-01 DOI:10.1051/mfreview/2020025

R. Kosturek, L. Śnieżek, J. Torzewski, M. Wachowski

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引用次数: 9

Abstract

In this investigation, a 5 mm thick extrusion of AA2519-T62 alloy has been welded using friction stir welding method. The various sets of process parameters have been involved within the range of 400–1200 rpm tool rotation speed and 100–800 mm/min welding speed. Selected joints have been subjected to the macrostructure analysis, microhardness measurements, tensile and low cycle fatigue testing (atε = 0.3%), and fractography analysis. It has been stated that imperfection-free macrostructure is obtained for welds produced with lowest welding speed: 100 mm/min and tool rotation speed within the range of 400–800 rpm. The highest joint efficiency (85%) has been obtained for the sample characterized by the presence of voids in the upper part of the stir zone. Considering macrostructure analysis and established mechanical properties of the joints, it may be concluded that the best set of welding parameters for AA2519-T62 is within the range of 600–800 rpm tool rotation speed with welding speed of 100 mm/min for used MX Triflute tool.

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焊接参数对sc改性AA2519-T62 FSW接头宏观组织和力学性能的影响

采用搅拌摩擦焊的方法焊接了5mm厚的AA2519-T62合金挤压件。在400 - 1200rpm的工具转速和100 - 800mm /min的焊接速度范围内，涉及了各种工艺参数。对选定的接头进行了宏观组织分析、显微硬度测量、拉伸和低周疲劳试验(atε = 0.3%)以及断口分析。在最低焊接速度为100 mm/min，刀具转速为400-800 rpm时，焊缝的宏观组织无缺陷。在搅拌区上部存在孔洞的样品中获得了最高的接合效率(85%)。结合焊接接头的宏观组织分析和已建立的力学性能，得出AA2519-T62的最佳焊接参数为600 ~ 800转/分的刀具转速范围内，焊接速度为100 mm/min。

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

Manufacturing Review ENGINEERING, MANUFACTURING-

CiteScore

5.40

自引率

12.00%

发文量

审稿时长

8 weeks

期刊介绍： The aim of the journal is to stimulate and record an international forum for disseminating knowledge on the advances, developments and applications of manufacturing engineering, technology and applied sciences with a focus on critical reviews of developments in manufacturing and emerging trends in this field. The journal intends to establish a specific focus on reviews of developments of key core topics and on the emerging technologies concerning manufacturing engineering, technology and applied sciences, the aim of which is to provide readers with rapid and easy access to definitive and authoritative knowledge and research-backed opinions on future developments. The scope includes, but is not limited to critical reviews and outstanding original research papers on the advances, developments and applications of: Materials for advanced manufacturing (Metals, Polymers, Glass, Ceramics, Composites, Nano-materials, etc.) and recycling, Material processing methods and technology (Machining, Forming/Shaping, Casting, Powder Metallurgy, Laser technology, Joining, etc.), Additive/rapid manufacturing methods and technology, Tooling and surface-engineering technology (fabrication, coating, heat treatment, etc.), Micro-manufacturing methods and technology, Nano-manufacturing methods and technology, Advanced metrology, instrumentation, quality assurance, testing and inspection, Mechatronics for manufacturing automation, Manufacturing machinery and manufacturing systems, Process chain integration and manufacturing platforms, Sustainable manufacturing and Life-cycle analysis, Industry case studies involving applications of the state-of-the-art manufacturing methods, technology and systems. Content will include invited reviews, original research articles, and invited special topic contributions.