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Title: Effect of interpass temperature on wire arc additive manufacturing using high-strength metal-cored wire
Authors: Zhai, Wengang
Wu, Naien
Zhou, Wei
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Zhai, W., Wu, N. & Zhou, W. (2022). Effect of interpass temperature on wire arc additive manufacturing using high-strength metal-cored wire. Metals, 12(2), 212-.
Project: #020408-00002
Journal: Metals
Abstract: Wire arc additive manufacturing (WAAM) is suitable to fabricate large components because of its high deposition rate. In this study, a metal-cored low-alloy high-strength welding filler metal was used as feedstock. Single wall structures were prepared using the WAAM process with different interpass temperatures (150◦ C, 350◦ C, and 600◦ C). No obvious microstructure change was observed when the alloy was deposited with the interpass temperatures of 150◦ C and 350◦ C. Electron backscattered diffraction analysis shows that that no significant texture is developed in the samples. The yield strength tends to decrease with the increase in interpass temperature; however, the influence is insignificant. The highest ultimate tensile strength is found at the interpass temperature of 350◦ C. A higher interpass temperature can lead to a higher deposition rate because of the shorter waiting time for the cooling of the earlier deposited layer. It was found that the upper limit interpass temperature for WAAM of the low-alloy high-strength steel is 350◦ C. When a higher interpass temperature of 600◦ C was used, collapse of the deposited materials was observed.
ISSN: 2075-4701
DOI: 10.3390/met12020212
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// 4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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