A review on process planning strategies and challenges of WAAM

Wire arc and additive manufacturing (WAAM) is coming out to be a new promising economical technique for metal additive manufacturing. Custom-built large volume metallic structures can be produced in relatively less time using WAAM techniques. A state of the art setup of WAAM needs to control several parameters related to the process of additive manufacturing and welding process. Hence, the process planning of WAAM is the crucial aspect in successful execution of WAAM. In present study, the basics and fundamentals of WAAM techniques, various important steps and strategic process planning for WAAM have been elaborated. Furthermore, the challenges and cutting edge developments in this prominent field of WAAM are focused for the better understanding of processes and technologies.