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:
Sep. 24, 2024
Filed:
Sep. 16, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Hirokatsu Kameda, Hitachinaka, JP;
Toshihiro Ogawa, Kasugai, JP;
Shinji Kasatori, Tokyo, JP;
Hideki Kato, Tokyo, JP;
Keiichi Maekawa, Tokyo, JP;
Kentaro Tokita, Tokyo, JP;
Kenji Nagaoka, Tokyo, JP;
Atsushi Murakami, Tokyo, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
The invention relates to a method for manufacturing a coil spring and for determining a propelling condition for a shot medium. In a case where it is confirmed that the coating film remains in a third step, at least one or more of conditions of the shot peening treatment including a propelling speed of the shot medium, a propelling time of the shot medium, a material of the shot medium, and an average particle diameter of the shot medium are changed and the second step and the third step are repeated until the coating film does not remain. In a case where it is confirmed that the coating film does not remain in the third step, the condition of the shot peening treatment in the second step in which the coil spring is obtained with no remaining coating film is determined as the propelling condition for the shot medium.