3D Printing Parameters Optimization for Automated Metal Deposition of Stainless Steel 316Lx

摘要

3D printing technologies enables users to manufacture complex functional parts for a variety of engineering applications. Triditive has developed AMD (Automated Metal Deposition) technology for its automated industrial 3D printer AMCELL. This 3D printing technology has the capability of manufacturing series of metal parts with properties such as density, porosity and shrinkage comparable to those in the MIM industry. The quality of printed parts depends on the carefully selected printing process and manufacturing variables. Thus, the new methodologies of Design for AM analyze the input-output parameters, printing conditions, physical phenomena, material characteristics, and post-processing that are a reference for the optimization of the AM processes. In this paper, an innovative sinter-based additive manufacturing technology for making austenitic stainless steel 316L parts using a metal-polymer composite filament is studied to improve and optimize the printing process variables to maximize the mechanical properties and final part quality using an experimental design technique Box-Behnken.