Ali, Syed Maisam Tammar  <br/><br/>
Metal 3D Printing of Functionally Graded Tri-Metallic Structure Using Wire Arc Additive Manufacturing (WAAM) / 
Syed Maisam Tammar Ali 
 - 62p.  Soft Copy  30cm 
<br/><br/> Wire Arc Additive Manufacturing (WAAM) is one of the promising metal additive<br/>manufacturing techniques being used for fabricating medium to large-scale parts and objects<br/>in various industries. During the last decade, WAAM has been used to produce parts with<br/>tailored properties by combining different materials in a single structure. Integrating different<br/>materials provides an opportunity to explore their efficacy in manufacturing functionally<br/>graded materials (FGM). Current research explores utilization of Gas Metal Arc Welding<br/>(GMAW) based WAAM in fabrication of Functionally Graded Tri-metallic Structure (FGTS).<br/>Individual as well as combination of three types of steels i.e. Mild steel (ER70S-6), Austenitic<br/>stainless steel (SS-316L) and High strength low alloy steel (AISI-5130) through WAAM was<br/>studied for this paper. Research validated that all three materials exhibited distinct<br/>microstructure which is in line with their individual alloy chemistry with smooth transition<br/>observed in FGTS. Tensile testing also demonstrated excellent integration of mechanical<br/>properties, with Ultimate Tensile Strength (442.48 MPa) and elongation (25.93%) representing<br/>a balance between strength and ductility. The research offers a novel avenue for producing trimetallic steel structures and widens the design opportunities for structures requiring sitespecific properties 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MS Design and Manufacturing Engineering  
<br/><br/><label>Dewey Class. No.: </label>670