Search results
1 – 2 of 2Md. Rumman Ul Ahsan, Ali Newaz Mohammad Tanvir, Taylor Ross, Ahmed Elsawy, Min-Suk Oh and Duck Bong Kim
Wire + arc additive manufacturing (WAAM) uses existing welding technology to make a part from metal deposited in an almost net shape. WAAM is flexible in that it can use multiple…
Abstract
Purpose
Wire + arc additive manufacturing (WAAM) uses existing welding technology to make a part from metal deposited in an almost net shape. WAAM is flexible in that it can use multiple materials successively or simultaneously during the manufacturing of a single component.
Design/methodology/approach
In this work, a gas metal arc welding (GMAW) based wire + arc additive manufacturing (WAAM) system has been developed to use two material successively and fabricate bimetallic additively manufactured structure (BAMS) of low carbon steel and AISI 316L stainless steel (SS).
Findings
The interface shows two distinctive zones of LCS and SS deposits without any weld defects. The hardness profile shows a sudden increase of hardness at the interface, which is attributed to the migration of chromium from the SS. The tensile test results show that the bimetallic specimens failed at the LCS side, as LCS has lower strength of the materials used.
Originality/value
The microstructural features and mechanical properties are studied in-depth with special emphasis on the bimetallic interface.
Details