Effect of Different Wire Feeding Strategies on the Preparation of Functionally Graded Materials by Dual-Wire Arc Additive Manufacturing

• Published in: Metallurgical and materials transactions. B, Process metallurgy and materials processing science Vol. 54; no. 1; pp. 43 - 49
• Main Authors: Li, Tianxu, Wang, Zhijiang, Yang, Zhenwen, Wang, Ying, Hu, Shengsun
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-02-2023; Springer Nature B.V
• Subjects: Accuracy; Additive manufacturing; Behavior; Brief Communication; Characterization and Evaluation of Materials; Chemistry and Materials Science; Deposition; Efficiency; Functionally gradient materials; Laboratories; Manufacturing; Materials Science; Mechanical properties; Metallic Materials; Microstructure; Nanotechnology; Stainless steel; Structural Materials; Surfaces and Interfaces; Thin Films; Wire
• ISSN: 1073-5615; 1543-1916
• DOI: 10.1007/s11663-022-02690-4

In preparation process of functionally graded materials with a composition transition along the torch-traveling direction by dual-wire arc additive manufacturing, large difference in wire feed speed between the two wires will lead to poor shaping, and nonuniform microstructure and mechanical properties. To solve this issue, the wire feeding strategy was improved. The droplet transfer using up-and-down layout of the two wires was more advantageous and effectively improved shaping accuracy and uniformity of microstructure and hardness.