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. 10, 2024
Filed:
Aug. 25, 2020
Vast Glory Electronic & Hardware & Plastic (Hui Zhou) Ltd, Hui Zhou, CN;
Qing-Song Zhang, Hui Zhou, CN;
Zhong-Long Zhu, Hui Zhou, CN;
VAST GLORY ELECTRONIC & HARDWARE & PLASTIC (HUI ZHOU) LTD, Hui Zhou, CN;
Abstract
A welding method for manufacturing a heat sink has the following steps in sequence: removing rust from a first workpiece and a second workpiece, degreasing the first workpiece and the second workpiece, increasing surface roughness of the first workpiece and the second workpiece, performing a copper supersonic cold spray step to the first workpiece and the second workpiece, and then combining the first workpiece and the second workpiece via welding. With the copper supersonic cold spray step and the surface treatment steps before the copper supersonic cold spray step (i.e. rust removal and degreasing, and surface roughness increasing), the solder can be attached to the workpiece tightly in the combining via welding. Thus, the welded workpieces are combined firmly and not be separated easily. If a heat sink component is made through welding workpieces in the welding method, the heat sink component has higher strength and cannot be destroyed easily.