CORE POSITIONING IN WAX PATTERN DIE, AND ASSOCIATED METHOD AND APPARATUS

摘要

For forming a shell mould for investment casting, first and second core components are provided. These are formed of ceramic material. The core components are assembled together for manufacturing a wax pattern containing the core component for formation of a shell mould for investment casting. The core components have an arrangement of precursor location features. The method includes machining at least one of the precursor location features to a required shape to provide an arrangement of final location features. The core components are then positioned with respect to each other and/or with respect to a wax pattern die by contacting the arrangement of final location features with corresponding positioning features of a receiving device and/or the wax pattern die.