Examination of microstructure properties of AISI 316L stainless steel fabricated by wire arc additive manufacturing

Abstract

Wire Arc Additive Manufacturing (WAAM) is a fusion manufacturing or Wire-feed additive manufacturing for creating components by layer-by-layer technique. WAAM has been a viable replacement to traditional machining because of its ecological protection, high deposition rate, minimizes the wastage, and competitive pricing. WAAM technique is used to manufacture multipart designed products.316 L stainless steel plate was fabricated in this investigation using ER 316 L consumable wires and a welding robot system. Current, Voltage, welding speed, gas flow rate, and shielding gas were used as experimental factors. Micro wire cut electric discharge machining was used to remove the base plate and side edges, and the processed plate surface was polished with help of vertical milling machine. To check the microstructure behaviors like Scanning electron microscope, Macro test and Surface roughness test was performed. The process of additive manufacture of 316L stainless steel is found to be practical using this experimental work.