Method for the production of parts by means of diffusion bonding and superplastic forming, and mold for carrying out said method
AssigneesSnecma, Hurel Hispano
InventorsJean-Michel Patrick Maurice Franchet, Gilles Charles Casimir Klein, Olivier Daniel Lamy, Edmond Paul Szkolnik
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Abstract
A method for producing parts including at least one internal cavity. In the method at least two metal sheets are diffusion bonded; then the bonded metal sheets are bent; and then each of internal cavities is inflated by superplastic forming. The method is carried out by a mold allowing at least one first part to be diffusion bonded and then bent while inflating at least one second part by superplastic forming during a single operation, whereby the mold is heated. The method can be applied, e.g., to the field of aeronautics.
Claims12
A process for manufacturing parts that include at least one internal cavity, the process comprising:
- providing, in a primary recessed portion of a mold, a first part comprising two metal sheets;
- providing, in a secondary recessed portion of said mold, a second part comprising two metal sheets;
- bonding said two metal sheets of said first part together by diffusion bonding thereby forming a first assembly of metal sheets;
- deforming said first assembly of metal sheets;
- and
- inflating a cavity between said two metal sheets of said second part by superplastic forming,
- wherein said bonding, said deforming and said inflating are performed during a single heating operation performed on the mold.
Dependencies are inferred from the claim text.