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:
May. 23, 2023
Filed:
May. 16, 2018
Nippon Light Metal Company, Ltd., Tokyo, JP;
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
Abstract
A method for manufacturing a liquid-cooling jacket () where heat transfer fluid flows in a hollow part () defined by a jacket body () and a sealing body () includes: an overlapping process in which the sealing body () is placed on an end surface (a) of a peripheral wall part () in such a way that the end surface (a) and a back surface of the sealing body () are overlapped each other to form a first overlapped part (H); and a primary joining process in which primary joining is performed by friction stirring in such a way that a rotary tool (FD) is moved once around a recessed part () along the first overlapped part (H). In the primary joining process, in a state where a base side pin of the rotary tool (FD) is in contact with the sealing body (), a flat surface of the base (tip) side pin is brought in contact with only the sealing body (), and a tip of a projection projecting from the flat surface is inserted more deeply than the first overlapped part (H) to join the first overlapped part (H).