Comparative study of deposition patterns for DED-Arc additive manufacturing of Al-4046 |
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Author: | Köhler, Markus1; Sun, Li2; Hensel, Jonas1; |
Organizations: |
1Institute of Joining and Welding, Technische Universität Braunschweig, Langer Kamp 8, 38106 Braunschweig, Germany 2Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway 3Materials and Mechanical Engineering, University of Oulu Centre for Advanced Steels Research, P.O. Box 4200, FI-90014 University of Oulu, Finland |
Format: | article |
Version: | published version |
Access: | open |
Online Access: | PDF Full Text (PDF, 7.5 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe2021111755764 |
Language: | English |
Published: |
Elsevier,
2021
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Publish Date: | 2021-11-17 |
Description: |
AbstractQuality assurance is one of the largest challenges to the widespread adoption of metal additive manufacturing technology. Deposition pattern can significantly impact the temperature distribution during manufacturing process and thus the overall quality and residual stress formation of the manufactured components. In order to explore the intricate relationship, three different deposition patterns in DED-Arc additive manufacturing, the meander pattern, the spiral pattern and the newly developed S pattern, were experimentally and numerically scrutinized in terms of the resulting temperature distribution, grain size, porosity as well as residual stress formation. The study reveals that the variation of the deposition paths results in characteristic temperature fields and gradients with distinct local peak temperatures that determine the deposition quality, and simultaneously offers great degrees of freedom for optimal pattern design. Comparing the results with different deposition patterns, the S pattern leads to a more homogeneous temperature distribution, showing beneficial effects on the microstructure, porosity and residual stress formation in the deposited Al-4046 material, and is thus regarded as a promising alternative for improving additively manufactured parts quality. see all
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Series: |
Materials & design |
ISSN: | 0264-1275 |
ISSN-E: | 1873-4197 |
ISSN-L: | 0264-1275 |
Volume: | 210 |
Article number: | 110122 |
DOI: | 10.1016/j.matdes.2021.110122 |
OADOI: | https://oadoi.org/10.1016/j.matdes.2021.110122 |
Type of Publication: |
A1 Journal article – refereed |
Field of Science: |
216 Materials engineering |
Subjects: | |
Funding: |
Dr. Li Sun would like to thank the founding from the China Scholarship Council and the Research Council of Norway through the Petromaks2 program (Project No. 281927) and the BIA Program (Project No. 269558)). Dr. Sakari Pallaspuro would like to thank Academy of Finland (#311934) for funding. |
Copyright information: |
© 2021 The Authors. Published by Elsevier Ltd.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
https://creativecommons.org/licenses/by/4.0/ |