PATTERN-LESS CASTING OF THIN WALLED INVAR TOOLING

摘要

This paper focuses on the advances that have been made in the casting of steels and in particular as it applies to the production of Invar tooling for advanced composite components, without the need of a mold pattern. The paper is presented to an audience knowledgeable in the manufacture of composite components with some reference to metallurgical characteristics of casting and their treatment. Due to intellectual property restrictions, examples of tooling components are limited; however it was possible to show parts that demonstrate the use of the technique to produce large complex Invar tools that are thin-walled, dimensionally accurate and have been produced without the need of a mold pattern.