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:
Nov. 21, 2017
Filed:
Sep. 20, 2016
Sintokogio, Ltd., Nagoya-shi, Aichi, JP;
Yuji Kobayashi, Toyokawa, JP;
Akinori Matsui, Toyokawa, JP;
SINTOKOGIO, LTD., Nagoya-shi, Aichi, JP;
Abstract
In a trial peening step, a shot peening process is applied to a back faceB of a moldin which an opening of a closed-end water cooling holeis formed. Next, in an evaluation step, compressive residual stress and surface roughness of a region shot-peened in the trial peening step are measured and an extent of shot peening treatment in the trial peening step is evaluated based on measurement results. Next, in a peening step, a surface of the water cooling holein the moldis shot-peened under peening conditions set based on peening conditions for the trial peening step and on evaluation results produced in the evaluation step.