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. 17, 2013
Filed:
Jul. 03, 2012
Hong-zhan Yi, Shenzhen, CN;
Ai-jun Xu, Shenzhen, CN;
Lone-wen Tai, New Taipei, TW;
Zi-li Wu, Shenzhen, CN;
Jun Dai, Shenzhen, CN;
Xiao-bo Yuan, Shenzhen, CN;
Hong-Zhan Yi, Shenzhen, CN;
Ai-Jun Xu, Shenzhen, CN;
Lone-Wen Tai, New Taipei, TW;
Zi-Li Wu, Shenzhen, CN;
Jun Dai, Shenzhen, CN;
Xiao-Bo Yuan, Shenzhen, CN;
Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A method for making a metallic cover including the following steps. Drawing an aluminum alloy sheet that has a yield strength in a range from about 80 MPa to about 150 MPa, an elongation ratio in a range from about 15% to about 28%, and a hardness in a range from about 45 HV0.2 to about 70 HV0.2 to form a preformed cover. The preformed cover includes a bottom base and a plurality of side walls, and each of the side wall and the bottom base are connected by a curved-cornered edge. Pressing the curved-cornered edge of the preformed cover into a sharp-cornered edge structure by a forming die. Polishing the preformed cover. Anodizing the polished preformed cover to form the metallic cover.