Iterative hybrid manufacture of a titanium alloy component

This paper describes an iterative hybrid (additive + subtractive) manufacturing approach for a titanium alloy (Ti6Al4V) part using laser hotwire directed energy deposition system (LHWDED) and traditional four-axis milling machine tool. The term is used to described where the additive subtractive operations occur in multiple stages rather than sequentially. It currently common produce entire by sequential additively (AM) preform geometry that then requires post processing another tool create final features. By contrast, produced (IHM) does not single AM process. Instead, portion of manufactured process, transferred which creates features portion, machined back complete There no limit number iterations IHM process can have. offers several advantages over such as use shorter stiffer tooling, better access geometries require processes, separation heat source from A demonstration was successfully with three shared pallet between tool.1