Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components

Karan Derekar, Jonathan Lawrence, Geoffrey B Melton, Adrian Addison, Xiang Zhang, Lei Xu

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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Abstract

Wire arc additive manufacturing (WAAM) technique has revealed the potential of replacing existing aerospace industry parts manufactured by traditional manufacturing routes. The reduced mechanical properties compared to wrought products, the porosity formation, and solidification cracking are the prime constraints that are restricting wide-spread applications of WAAM products using aluminium alloys. An interpass temperature is less studied in robotic WAAM and is the vital aspect affecting the properties of a formed product. This paper highlights the effects of change in interpass temperature on porosity content and mechanical properties of WAAM parts prepared using DC pulsed GMAW process, with 5356 aluminium consumable wire. The samples prepared with different interpass temperatures were studied for the distribution of pores with the help of computed tomography radiography (CT radiography) technique. A WAAM sample produced with higher interpass temperature revealed 10.41% less porosity than the sample prepared with lower interpass temperature. The pores with size less than 0.15mm3 were contributing over 95% of the overall porosity content. dditionally, on a volumetric scale, small pores (<0.15mm3) in the higher interpass temperature sample contributed 81.47% of overall volume of poreswhereas only 67.92% volume was occupied in lower interpass temperature sample with same sized pores. The different solidification rates believed to have influence on the hydrogen evolution mechanism. Tensile properties of higher interpass temperature sample were comparatively better than lower interpasstemperature sample. For the deposition pattern used in this study, horizontal specimens were superior to vertical specimens in tensile properties.
Original languageEnglish
Title of host publicationMATEC Web of Conferences
PublisherEDP Sciences
Chapter269
Number of pages6
Volume269
DOIs
Publication statusPublished - 22 Feb 2019

Publication series

NameMATEC Web of Conferences
ISSN (Electronic)2261-236X

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3D printers
Aluminum alloys
Wire
Porosity
Temperature
Radiography
Tensile properties
Solidification
Gas metal arc welding
Mechanical properties
Aerospace industry
Tomography
Robotics
Aluminum

Bibliographical note

CC-BY This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Cite this

Derekar, K., Lawrence, J., Melton, G. B., Addison, A., Zhang, X., & Xu, L. (2019). Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components. In MATEC Web of Conferences (Vol. 269). [5001] (MATEC Web of Conferences). EDP Sciences. https://doi.org/10.1051/matecconf/201926905001

Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components. / Derekar, Karan; Lawrence, Jonathan; Melton, Geoffrey B; Addison, Adrian; Zhang, Xiang; Xu, Lei.

MATEC Web of Conferences. Vol. 269 EDP Sciences, 2019. 5001 (MATEC Web of Conferences).

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Derekar, K, Lawrence, J, Melton, GB, Addison, A, Zhang, X & Xu, L 2019, Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components. in MATEC Web of Conferences. vol. 269, 5001, MATEC Web of Conferences, EDP Sciences. https://doi.org/10.1051/matecconf/201926905001
Derekar K, Lawrence J, Melton GB, Addison A, Zhang X, Xu L. Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components. In MATEC Web of Conferences. Vol. 269. EDP Sciences. 2019. 5001. (MATEC Web of Conferences). https://doi.org/10.1051/matecconf/201926905001
Derekar, Karan ; Lawrence, Jonathan ; Melton, Geoffrey B ; Addison, Adrian ; Zhang, Xiang ; Xu, Lei. / Influence of Interpass Temperature on Wire Arc Additive Manufacturing (WAAM) of Aluminium Alloy Components. MATEC Web of Conferences. Vol. 269 EDP Sciences, 2019. (MATEC Web of Conferences).
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