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:
Jul. 06, 2021
Filed:
Dec. 28, 2016
Applicant:
Kwang Hui Lee, Busan, KR;
Inventor:
Kwang Hui Lee, Busan, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H 5/00 (2006.01); B21H 5/02 (2006.01); B23P 15/14 (2006.01); C21D 1/06 (2006.01); B23P 9/02 (2006.01); C21D 8/00 (2006.01); B23F 1/06 (2006.01); B23F 19/05 (2006.01); C21D 9/32 (2006.01);
U.S. Cl.
CPC ...
B21H 5/027 (2013.01); B21H 5/022 (2013.01); B23F 1/06 (2013.01); B23F 19/05 (2013.01); B23P 9/02 (2013.01); B23P 15/14 (2013.01); C21D 1/06 (2013.01); C21D 8/005 (2013.01); C21D 9/32 (2013.01); C21D 2261/00 (2013.01);
Abstract
A gear manufacturing method includes a step of preparing a gear blank; a step (teeth cutting step) of cutting the gear blank to form a half-finished gear having a plurality of gear teeth; a step (heat treatment step) of heat-treating the half-finished gear having the gear teeth; and a step (form rolling step) of rolling the half-finished gear which is subjected to the heat treatment, in which the gear teeth of the half-finished gear which is subjected to the teeth cutting step is formed with protuberances on both sides in a circumferential direction, and at the form rolling step, the protuberances are pressed by a rolling die, so that the half-finished gear becomes a gear.