FIELD: technological processes.
SUBSTANCE: invention relates to investment casting. Method of producing a wax pattern for an investment casting process includes positioning a ceramic core within a wax pattern mould. Ceramic core is supported from a flexible surface of the mould. Molten wax is injected into the mould around the ceramic core. Mould is removed after the wax has hardened. Ceramic core is supported at a certain location along its length during the step of injecting molten wax by locating a pin. Pin can interact with the support base formed on the core to provide support for the core along the axes. Invention also includes a tool for making a wax pattern for an investment casting process.
EFFECT: enabling use of higher wax injection pressure without damaging the core.
7 cl, 17 dwg, 1 tbl
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