The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 17, 2020

Filed:

Nov. 04, 2016
Applicant:

Safran, Paris, FR;

Inventors:
Assignee:

SAFRAN, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/42 (2006.01); C22F 1/00 (2006.01); C21D 1/00 (2006.01);
U.S. Cl.
CPC ...
C21D 1/42 (2013.01); C21D 1/00 (2013.01); C22F 1/00 (2013.01); C21D 2221/10 (2013.01);
Abstract

A device for generating a microstructure with a structure gradient in an axisymmetric mechanical part having a hollow center and initially possessing a uniform structure with fine grains, the device including a first heater system defining a first shell for receiving the mechanical part and suitable for heating the outer periphery of the mechanical part to a first temperature higher than the solvus temperature. The device further includes a second heater system defining a second shell arranged inside the first shell and suitable for heating the inner periphery of the mechanical part to a second temperature lower than the solvus temperature, with the space between the first shell and the second shell defining a housing suitable for receiving the axisymmetric mechanical part having a hollow center.


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