Wire and Arc based Additive Manufacturing, shortly known as WAAM, is one of the most prominent tech- nologies, under Additive Manufacturing, used for extensive production of complex and intricate shapes. This layer by layer deposition method avails arc welding technology; Gas Metal Arc Welding (GMAW), a competitive method in WAAM, is the conducted manufacturing process. It is a sum of heat source, originated from the electric arc, and metal wire as feedstock. The metal wire from the feedstock, melted by arc discharge, is deposited layer by layer. Another material can be added on to the top of deposited layer by replacing the feed wire from the stock, to fabricate a bimetallic structure. The purpose of this study is to collect the salient datum from the joining of two dissimilar metals. A combination of stainless steel and mild steel are considered. Proper deposition parameters, welding current along with voltage, bead width efficiency for both the metals were acquired. As a result, the physical properties of the dissimilar joint were approximate to the bulk material.
Additive Manufacturing by laser-assisted drop deposition from a metal wire
