WELDING OF ADDITIVE MANUFACTURED ALSI10MG: USING LASER WELDING IN A VACUUM FOR HIGH QUALITY WELD SEAMS — A NEW APPROACH TO WELDING LPBF MANUFACTURED ALSI10MG

IF 0.5 4区工程技术 Q4 ENGINEERING, INDUSTRIAL

South African Journal of Industrial Engineering Pub Date : 2021-12-01 DOI:10.7166/32-4-2513

A. Schwarz, Makus Schleser, B. Gerhards, Patrica Popoola, A. Gebhardt

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引用次数: 3

Abstract

Metal additive manufacturing has evolved to a manufacturing process used in different industries. Especially in highly complex applications with small batches, such as aerospace or tooling, laser powder bed fusion (LPBF) has become established. But one of its major limitations is the size of the build chamber, which is limited to around 800 x 400 x 500 mm for the largest machine that is currently available. One solution to overcome this size limitation is to weld additive manufactured parts. While it has been proven for different materials that conventional welding processes can be applied to LPBF manufactured parts, the resulting weld seam quality for AlSi10Mg is still insufficient. By using laser welding in a vacuum, which is a newly developed and highly efficient laser welding process, the quality of the weld seams, especially in terms of porosity, can be improved. This technology is used to produce weld seams that are then tested for their mechanical properties. Finally, a solution for combining LPBF parts with conventional aluminium alloys is presented.

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添加剂alsi10mg的焊接:采用真空激光焊接获得高质量焊缝——一种焊接alsi10mg LPBF的新方法

金属增材制造已经发展成为一种应用于不同行业的制造工艺。特别是在小批量的高度复杂的应用中，如航空航天或模具，激光粉末床熔合(LPBF)已经建立起来。但其主要限制之一是构建室的尺寸，对于目前可用的最大机器，其限制在800 x 400 x 500 mm左右。克服这种尺寸限制的一个解决方案是焊接增材制造的零件。虽然传统的焊接工艺已经被证明可以应用于LPBF制造的零件，但AlSi10Mg的焊缝质量仍然不足。真空激光焊接是一种新型的高效激光焊接工艺，可提高焊缝质量，特别是气孔率。该技术用于生产焊缝，然后测试其机械性能。最后，提出了LPBF零件与常规铝合金结合的解决方案。

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

South African Journal of Industrial Engineering 工程技术-工程：工业

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

6 weeks

期刊介绍： The South African Journal of Industrial Engineering (SAJIE) publishes articles with the emphasis on research, development and application within the fields of Industrial Engineering and Engineering and Technology Management. In this way, it aims to contribute to the further development of these fields of study and to serve as a vehicle for the effective interchange of knowledge, ideas and experience between the research and training oriented institutions and the application oriented industry. Articles on practical applications, original research and meaningful new developments as well as state of the art surveys are encouraged.