Effect of path strategy on residual stress and distortion in laser and cold metal transfer hybrid additive manufacturing

2021 ◽  
pp. 102203
Author(s):  
Runsheng Li ◽  
Guilan Wang ◽  
Xushan Zhao ◽  
Fusheng Dai ◽  
Cheng Huang ◽  
...  
Keyword(s):  
Residual Stress ◽  
Additive Manufacturing ◽  
Metal Transfer ◽  
Cold Metal Transfer ◽  
Cold Metal

scholarly journals Microstructure and Mechanical Properties of AlSi7Mg0.6 Aluminum Alloy Fabricated by Wire and Arc Additive Manufacturing Based on Cold Metal Transfer (WAAM-CMT)

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2525 ◽  
Author(s):  
Qingfeng Yang ◽  
Cunjuan Xia ◽  
Yaqi Deng ◽  
Xianfeng Li ◽  
Haowei Wang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Additive Manufacturing ◽  
Shape Change ◽  
Rapid Development ◽  
Engineering Application ◽  
Metal Transfer ◽  
Cold Metal Transfer ◽  
Microstructure And Mechanical Properties ◽  
Cold Metal

Wire and arc additive manufacturing based on cold metal transfer (WAAM-CMT) has aroused wide public concern in recent years as one of the most advanced technologies for manufacturing components with complex geometries. However, the microstructure and mechanical properties of the parts fabricated by WAAM-CMT technology mostly are intolerable for engineering application and should be improved necessarily. In this study, heat treatment was proposed to optimize the microstructure and enhance mechanical properties in the case of AlSi7Mg0.6 alloy. After heat treatment, the division between coarse grain zone and fine grain zone of as-deposited samples seemed to disappear and the distribution of Si and Mg elements was more uniform. What is more, the yield strength and ultimate tensile strength were improved significantly, while the ductility could be sustained after heat treatment. The improvement of strength is attributed to precipitation strengthening, and the shape change of Si phase. No reduction in ductility is due to the higher work hardening rate caused by nanostructured precipitate. It is proved that heat treatment as an effective method can control the microstructure and enhance comprehensive mechanical properties, which will boost rapid development of WAAM industrial technology.

scholarly journals Thermo-mechanical simulation of overlaid layers made with wire + arc additive manufacturing and GMAW-cold metal transfer

2020 ◽  
Vol 64 (8) ◽  
pp. 1427-1435 ◽  
Author(s):  
C. Cambon ◽  
S. Rouquette ◽  
I. Bendaoud ◽  
C. Bordreuil ◽  
R. Wimpory ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Metal Transfer ◽  
Cold Metal Transfer ◽  
Mechanical Simulation ◽  
Cold Metal ◽  
Wire Arc Additive Manufacturing

Microstructure and mechanical properties of AZ91 Mg alloy fabricated by cold metal transfer additive manufacturing

2020 ◽  
Vol 276 ◽  
pp. 128185 ◽  
Author(s):  
Ji Bi ◽  
Junqi Shen ◽  
Shengsun Hu ◽  
Yahui Zhen ◽  
Fengliang Yin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Metal Transfer ◽  
Mg Alloy ◽  
Cold Metal Transfer ◽  
Microstructure And Mechanical Properties ◽  
Cold Metal

scholarly journals Process response of Inconel 718 to wire + arc additive manufacturing with cold metal transfer

2020 ◽  
Vol 195 ◽  
pp. 109031
Author(s):  
Renan Medeiros Kindermann ◽  
M.J. Roy ◽  
R. Morana ◽  
Philip B. Prangnell
Keyword(s):  
Additive Manufacturing ◽  
Inconel 718 ◽  
Metal Transfer ◽  
Cold Metal Transfer ◽  
Cold Metal ◽  
Wire Arc Additive Manufacturing
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