SS410 Process Development and Characterization

Abstract

Wire-fed stainless-steel additive manufacturing provides the potential for an alternative to traditional stainless-steel tool making processes. 410 stainless steel provides the necessary hardness for long term tool use and its corrosion resistances negates the need for post processing of non-critical faces. 410 has unique characteristics that require different design and welding parameters from other materials. This paper will look at the parameters and characteristics to expect when using wire-arc deposition for 410 stainless steel. Individual weld beads and simple geometric features were printed using the mBAAM wire-arc system at ORNL to determine effective wire-arc parameters for SS410. Once parameters were chosen, additional features were printed to determine the geometric characteristics of printed SS410 as well as compare the differences between designed geometries and printed geometries. These results allow for the formulation of smarter design rules when designing parts for SS410 additive manufacturing.