Thermal analysis for single-pass multi-layer GMAW based additive manufacturing using infrared thermography

By Dongqing Yang, Gang Wang, Guangjun Zhang. 2017

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Wire and arc additive manufacturing: Opportunities and challenges to control the quality and accuracy of manufactured parts (2021, background): “It has been reported that excessive heat accumulation can lead to deteriorating layer forming quality [114], which can lead to collapsing layers due to insufficient solidification [115].”
Current Status and Perspectives on Wire and Arc Additive Manufacturing (WAAM) (2019, methodology): “In addition, during WAAM, sensors can be used to monitor the temperature at different regions [151], measure the size and geometry of beads [152,153], determine the weld pool characteristics, monitor the acoustic signal of deposition [154], detect electrical conductivity variations [155], and measur”
Wire Arc Additive Manufacturing of Stainless Steels: A Review (2020, unknown): “WAAM process parameters determine the heat input and thermal accumulation, thereby impact Caballero et al. found that the cooling rate during deposition has an essential influence on retained austenite formation. the macro morphology [92,93].”
Wire and arc additive manufacturing of a Ni-rich NiTi shape memory alloy: Microstructure and mechanical properties (2020, background): “An 113 appropriate inter-layer cooling time can be fundamental to improve the forming 114 quality of WAAM thin walls [36].”