Application of Process Modeling and Rapid Prototype Patterns in the Development of Thin Wall IN718 Investment Castings

C. Carlson, G. Schurkamp
2001 Superalloys 718, 625, 706 and Various Derivatives (2001)   unpublished
Process modeling and rapid prototyping are being utilized to transition IN718 components that were traditionally manufactured as fabrications, to investment castings. The thin walls (0.040 inches) and geometry of the components are difficult to cast, but with the aid of process modeling simulations, gating schemes and process parameters can be examined and defined prior to committing to expensive casting trials. Two principle objectives of the modeling efforts are to predict mold fill and
more » ... mold fill and metallurgical defects, such as porosity. Successful simulations are verified through foundry casting trials utilizing rapid prototype patterns made with the SLA process, thus eliminating the need for hard tooling. The combination of these two technologies reduces development time, risk and cost, and opens up the potential for a new product line of investment castings. Superalloys 718, 625,706 and Various Derivatives Edited by E.A. Loria
doi:10.7449/2001/superalloys_2001_637_643 fatcat:5gohvvleyfh3po3o4y47ixklba