What is the role of CAD in modern-day welding processes? https://uberant.com/article/1900838-what-is-the-role-of-cad-in-modern-day-welding-processes/ When the context is about arc welding, modelling and design are always at the top of the list. Proper designing and modelling are necessary to make your welded parts unique and durable. However, in the absence of competent software platforms, you cannot achieve efficiency.