Characteristics of metal droplet transfer in wire-arc additive manufacturing of aluminum alloy

2018 ◽  
Vol 99 (5-8) ◽  
pp. 1521-1530 ◽  
Author(s):  
Zhu Liang ◽  
Li Jinglong ◽  
Luo Yi ◽  
Han Jingtao ◽  
Zhang Chengyang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Additive Manufacturing ◽  
Metal Droplet ◽  
Droplet Transfer ◽  
Wire Arc Additive Manufacturing

Droplet transfer behavior in bypass-coupled wire arc additive manufacturing

2020 ◽  
Vol 49 ◽  
pp. 397-412 ◽  
Author(s):  
Jiankang Huang ◽  
Wen Yuan ◽  
Shurong Yu ◽  
Linbo Zhang ◽  
Xiaoquan Yu ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Droplet Transfer ◽  
Transfer Behavior ◽  
Wire Arc Additive Manufacturing

scholarly journals Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5370
Author(s):  
Geir Langelandsvik ◽  
Odd M. Akselsen ◽  
Trond Furu ◽  
Hans J. Roven
Keyword(s):  
Aluminum Alloy ◽  
Additive Manufacturing ◽  
Alloy Composition ◽  
Layer By Layer ◽  
Alloy Development ◽  
And Performance ◽  
Crack Susceptibility ◽  
Wire Arc Additive Manufacturing ◽  
Further Development ◽  
Complex Parts

Processing of aluminum alloys by wire arc additive manufacturing (WAAM) gained significant attention from industry and academia in the last decade. With the possibility to create large and relatively complex parts at low investment and operational expenses, WAAM is well-suited for implementation in a range of industries. The process nature involves fusion melting of a feedstock wire by an electric arc where metal droplets are strategically deposited in a layer-by-layer fashion to create the final shape. The inherent fusion and solidification characteristics in WAAM are governing several aspects of the final material, herein process-related defects such as porosity and cracking, microstructure, properties, and performance. Coupled to all mentioned aspects is the alloy composition, which at present is highly restricted for WAAM of aluminum but received considerable attention in later years. This review article describes common quality issues related to WAAM of aluminum, i.e., porosity, residual stresses, and cracking. Measures to combat these challenges are further outlined, with special attention to the alloy composition. The state-of-the-art of aluminum alloy selection and measures to further enhance the performance of aluminum WAAM materials are presented. Strategies for further development of new alloys are discussed, with attention on the importance of reducing crack susceptibility and grain refinement.

scholarly journals Hot-wire arc additive manufacturing of aluminum alloy with reduced porosity and high deposition rate

2021 ◽  
Vol 199 ◽  
pp. 109370
Author(s):  
Rui Fu ◽  
Shuiyuan Tang ◽  
Jiping Lu ◽  
Yinan Cui ◽  
Zixiang Li ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Additive Manufacturing ◽  
Deposition Rate ◽  
High Deposition Rate ◽  
Hot Wire ◽  
Wire Arc Additive Manufacturing

scholarly journals A Review of Aluminum Alloy Fabricated by Different Processes of Wire Arc Additive Manufacturing

2021 ◽  
Vol 27 (1) ◽  
pp. 18-26
Author(s):  
Zeli WANG ◽  
Yuanbin ZHANG
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Additive Manufacturing ◽  
Topological Optimization ◽  
Utilization Rate ◽  
Future Research ◽  
General Tendency ◽  
High Deposition Rate ◽  
Microstructure And Mechanical Properties ◽  
Wire Arc Additive Manufacturing

Due to the advantages of high deposition rate, low equipment cost and high material utilization rate, aluminum alloy fabricated by wire arc additive manufacturing (WAAM) has been widely concerned by scholars and scientific institutions. This article reviews the features of aluminum alloy fabricated by different WAAM processes (GMAW-based, GTAW-based, CMT-based, PAW-based). Research status of the porosity, dimensional accuracy, microstructure and mechanical properties of aluminum alloy in different process is analyzed. General tendency of microstructure and mechanical properties were discussed, and suggestions for the future research direction were put forward including mandatory constraint on molten pool and structural topological optimization.

Energy characteristics of droplet transfer in wire-arc additive manufacturing based on the analysis of arc signals

Measurement ◽  
2019 ◽  
Vol 134 ◽  
pp. 804-813 ◽  
Author(s):  
Liang Zhu ◽  
Yi Luo ◽  
Jingtao Han ◽  
Chengyang Zhang ◽  
Jie Xu ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Droplet Transfer ◽  
Energy Characteristics ◽  
Wire Arc Additive Manufacturing
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