Patent · US Active

Method for manufacturing a shell mold for production by lost-wax casting of bladed elements of an aircraft turbine engine

US9862023B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

SAFRAN AIRCRAFT ENGINES · FR

Inventors

François Marques · Bouffémont, FR
Wilfrid Docquois · Villiers-le-Bel, FR
Eric Eberschveiller · Persan, FR

Key dates

Filing date	Jun 29, 2015
Grant date	Jan 9, 2018
Priority date	—
Expiry date	Jun 29, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2230/21
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for manufacturing a shell mold for the production by lost-wax casting of bladed elements (1) of an aircraft turbine engine, including the following steps: creating an assembly (200) including a wax pattern (100) as well as a device for forming a cup for pouring metal (32b) and having an end surface (40a); depositing a hot wax coating layer on at least one portion of the end surface (40a); forming the shell mold around the assembly (200). In addition, the method includes, between steps b) and c), the implementation of a step of structuring the coating layer intended for reinforcing the adhesion between the layer (46) and the shell mold, and including the production of recesses (62) and projections (60) on the still-malleable coating layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.