刀具凹凸度对搅拌摩擦焊管制造过程中闪光形成的影响

IF 1.9 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pub Date : 2023-07-23 DOI:10.1177/09544054231188992

Debolina Sen, Surjya K. Pal, S. Panda

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引用次数: 0

摘要

管状构件由于其曲率较大，采用搅拌摩擦焊(FSW)工艺进行焊接具有一定的挑战性。在本工作中，设计了一种新型的凹肩刀具，具有3°，6°和9°三个不同的凹槽，并结合双孔道来制造AA5083-O的纵向fsw管。由于刀具与管曲率的接触增加，产生过多的热量，导致了凹度的增加，导致了闪光的形成和焊缝区(WZ)的变薄。闪蒸作用导致WZ孔隙的形成。凹度为6°的刀具形成球形孔隙，而凹度为9°的刀具形成长针状孔隙。然而，使用3°凹形刀具观察到的孔隙可以忽略不计，从而获得了优异的WZ强度。因此，可以推断，凹肩小凹度双道刀适合于FSW焊管。

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Effect of tool concavity on flash formation during fabrication of tubes through friction stir welding

Tubular components are challenging to weld using friction stir welding (FSW) process due to its curvature. In the present work, a novel strategy involving concave shoulder tool with three different concavities (3°, 6° and 9°) coupled with double pass was devised to fabricate longitudinal FSWed tubes of AA5083-O. An increase in concavity resulted in formation of flash and thinning of weld zone (WZ) due to excessive heat generation caused by enhanced tool contact with tube curvature. The flash generation led to the formation of porosity in the WZ. The tool with 6° concavity resulted in spherical pores whereas long and needle shaped pores were witnessed in case of 9° concave tool. However, negligible pores were observed with 3° concave tool leading to excellent WZ strength. Therefore, it was inferred that concave shoulder tool with small concavity along with double pass was suitable for welding tubes using FSW.

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 工程技术-工程：机械

CiteScore

5.10

自引率

30.80%

发文量

167

审稿时长

5.1 months

期刊介绍： Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.