Method for the high-temperature shaping of a metal blade reinforcement

Patent metadata

Field	Value
Publication number	US-10155260-B2
Application number	US-201414913050-A
Country	US
Kind code	B2
Filing date	Aug 25, 2014
Priority date	Sep 2, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A shaping method making use of shaper tooling suitable for high-temperature shaping of a preformed metal part having two side fins extending from a nose, the method including putting the preformed metal part into place in a first bottom die of the tooling, holding the preformed metal part in a first determined position with a first movable central insert, forming one of the side fins of the preformed metal part into its final shape in alignment with the nose by moving with a first movable top die, turning over the preformed metal part, putting the preformed metal part into place in a second bottom die of the tooling, holding the preformed metal part in a second determined position with a second movable central insert, and shaping the other side fin into its final shape in alignment with the nose by moving with a second movable top die.

First claim

The invention claimed is:

1. A shaping method making use of shaper tooling suitable for high-temperature shaping of a preformed metal part having first and second side fins extending from a nose, the method comprising:
putting said preformed metal part into place in a first bottom die of said tooling;
holding said preformed metal part in a first determined position with a first movable central insert;
forming the first side fin of said preformed metal part into a final shape of the first side fin in alignment with said nose, said forming being preformed with a first movable top die;
turning over said preformed metal part having the first side fin that is shaped in the final shape of the first side fin;
putting said preformed metal part into place in a second bottom die of said tooling;
holding said preformed metal part in a second determined position with a second movable central insert; and
shaping the second side fin of said preformed metal part into a final shape of the second side fin in alignment with said nose, said shaping being performed with a second movable top die.

2. The shaping method according to claim 1 , wherein said holding in the first determined position is performed by moving said first movable central insert along a first axis.

3. The shaping method according to claim 1 , wherein said shaping the first side fin of said preformed metal part is performed by moving said performed metal part along a second axis.

4. The shaping method according to claim 3 , wherein said holding in the second determined position is performed by moving said second movable central insert along a third axis.

5. The shaping method according to claim 4 , wherein said axis in which said second movable central insert is moved corresponds substantially to a midplane between said first and second side fins.

6. The shaping method according to claim 4 , wherein said step of shaping the side fin of said preformed metal part is performed by moving said performed metal part along a fourth axis.

7. The shaping method according to claim 6 , wherein said second and fourth axes along which said first and second movable top dies are moved respectively are identical.

8. The shaping method according to claim 1 , wherein said second movable central insert is covered in a protective layer of boron nitride in order to facilitate withdrawal when extracting said preformed metal part from said shaper tooling.

9. A shaper tooling suitable for high-temperature shaping of a preformed metal part having first and second side fins extending from a nose, the tooling comprising:
a first bottom die in which said preformed metal part is put into place;
a first movable central insert for holding said preformed metal part in a first determined position;
a first movable top die for shaping the first side fin of said preformed metal part into a final shape of the first side fin in alignment with said nose;
a second bottom die in which said preformed metal part is put into place after being turned over;
a second movable central insert for holding said preformed metal part in a second determined position; and
a second movable top die for shaping the second side fin of said preformed metal part into a final shape of the second side fin in alignment with said nose.

10. The shaper tooling according to claim 9 , wherein said second movable central insert is covered in a protective layer of boron nitride.

11. The shaping method according to claim 1 , wherein the first movable central insert includes a first surface corresponding to the final shape of the first side fin, and a second surface corresponding to a non-final shape of the second side fin.

12. The shaping method according to claim 11 , wherein the second movable central insert includes a first surface corresponding to the final shape of the first side fin, and a second surface corresponding to the final shape of the second side fin.

13. The shaper tooling according to claim 9 , wherein the first movable central insert includes a first surface corresponding to the final shape of the first side fin, and a second surface corresponding to a non-final shape of the second side fin.

14. The shaper tooling according to claim 13 , wherein the second movable central insert includes a first surface corresponding to the final shape of the first side fin, and a second surface corresponding to the final shape of the second side fin.

Assignees

• Safran Aircraft Engines

Inventors

• Abousefian Jacques
• Bosselut Antoine
• Klein Gilles Charles Casimir

Classifications

• B21D22/06

  having relatively-movable die parts · CPC title

• F04D29/324

  Blades · CPC title

• F05D2230/25

  by forging · CPC title

• B21D53/78 Primary

  propeller blades; turbine blades · CPC title

• F05D2240/304

  related to the trailing edge of a rotor blade · CPC title