Numerical Analysis of Heat Accumulation During Wire Arc Additive Manufacturing

The wire arc additive manufacturingWire Arc Additive Manufacturing (WAAM) (WAAM) processProcess is one of the fast emerging metalMetals additive manufacturingAdditive manufacturing (AM) techniques. WAAMWire Arc Additive Manufacturing (WAAM) is known for its high deposition rates and relatively lower costs, which makes it suitable for the fabrication of large parts. Heat accumulationHeat accumulation is one of the key challengesChallenges with WAAM. As layers are deposited during WAAMWire Arc Additive Manufacturing (WAAM), heat accumulates due to insufficient cooling. This continues as the number of layers increases, which affects the geometry and mechanical performance of the deposited part. In this study, the WAAMWire Arc Additive Manufacturing (WAAM) processProcess is modelled numerically, and the heat accumulationHeat accumulation patterns are analysed. The numerical results compare well against experimental observations available in the literature. Further, the influence of interpass dwell time on the accumulated heat is discussed through the quantification of heat.