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.

Date of Patent:
May. 10, 2016

Filed:

Feb. 21, 2011
Applicants:

Takanori Yahaba, Wako, JP;

Tsutomu Kobayashi, Wako, JP;

Inventors:

Takanori Yahaba, Wako, JP;

Tsutomu Kobayashi, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 20/227 (2006.01); B23K 20/12 (2006.01);
U.S. Cl.
CPC ...
B23K 20/1265 (2013.01); B23K 20/2275 (2013.01); B23K 2203/20 (2013.01); Y10T 403/477 (2015.01);
Abstract

A joined heterogeneous material includes a carbon steel material and an aluminum material which have been joined via friction-stir welding. The region of a weld zone with a low lift-up amount in a plastic flow area created during friction-stir welding is located on one side of the aluminum material with respect to the weld zone, created by a welding probe. The region of the weld zone with a high plastic flow area lift-up amount is located on the other side of the aluminum material.


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