This talk introduces a geometry-independent support removal technique for powder bed fusion (PBF) parts made of titanium or copper alloys. Building off techniques we presented last year for stainless steel and nickel super alloys, we detail new methods designed specifically for Ti-6Al-4V and GRCop-42. Support scaffolding and structures are an inconvenient necessity in additive manufacturing, often accounting for 30% to 70% of the total production cost. Our self-terminating removal technology enables support removal of complete build platforms in a batch process while also considerably decreasing surface roughness of the finished part. Additionally, the process requires no change to build settings and works independently of component geometry. This talk details the overall approach, mechanical properties of the processed parts, and highlights key outcomes and benefits, such as reduced post processing time, improved surface finish, and expanded design/fabrication space. Our simple approach dramatically simplifies support removal and enables complex 3D geometry to be printed without concern for onerous post-processing requirements.
- Describe the materials science fundamentals underlying the dissolvable supports technology for titanium and copper alloys
- Define the differences between the established technology for dissolvable supports in stainless steels and super alloys and the new approach taken to achieve dissolvable supports in Ti-6Al-4V and GRCop-42
- Describe the advantages of dissolvable supports technology for post-processing of components produced with additive manufacturing