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.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
Mar. 29, 2013
Applicant:
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Inventors:
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 13/02 (2006.01); B21J 5/02 (2006.01); B21K 5/20 (2006.01); B23K 10/02 (2006.01); B23P 15/24 (2006.01); B22F 3/17 (2006.01); C22C 1/04 (2006.01); C22C 19/05 (2006.01); C22F 1/10 (2006.01);
U.S. Cl.
CPC ...
B21J 13/02 (2013.01); B21J 5/025 (2013.01); B21K 5/20 (2013.01); B22F 3/17 (2013.01); B23K 10/027 (2013.01); B23P 15/24 (2013.01); C22C 1/0433 (2013.01); C22C 19/055 (2013.01); C22F 1/10 (2013.01); C22C 19/056 (2013.01);
Abstract
Provided is an inexpensive hot forging die which allows a desired shape to be obtained even from a large-sized forging material. A hot forging die, for closed die hot forging of a material to be forged, includes a plurality of ring-shaped die pieces which are combined concentrically and fastened with each other, wherein an axial direction of the ring-shaped die pieces is identical with a pressing direction when the material is forged, and wherein a die face and a build-up layer of a nickel-base super heat-resistant alloy are formed at a part of the hot forging die, which is brought into contact with the material to be forged.