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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.:

US 9156117 B1

PDFFull Text
Expired
Date of Patent:
Oct. 13, 2015

Filed:

Nov. 01, 2011

Method of cutting steel for machine structural use

Applicants:

Toshiharu Aiso, Tokyo, JP;

Suguru Yoshida, Tokyo, JP;

Inventors:

Toshiharu Aiso, Tokyo, JP;

Suguru Yoshida, Tokyo, JP;

Assignee:

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

Attorney:

Kenyon & Kenyon LLP

Primary Examiner:

Kenneth E Peterson

Assistant Examiner:

Samuel A Davies

Int. Cl.
CPC ...
B26D 7/08 (2006.01); B23Q 11/10 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/60 (2006.01); C22C 38/08 (2006.01); C22C 38/18 (2006.01);
U.S. Cl.
CPC ...
B23Q 11/1038 (2013.01); B23Q 11/1007 (2013.01); B23Q 11/1061 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/18 (2013.01); C22C 38/60 (2013.01); Y10T 83/0443 (2015.04); Y10T 83/263 (2015.04);
Abstract

In the method of cutting steel for machine structural use, steel for machine structural use, in which chemical components contain, by mass %, 0.01% to 1.2% of C, 0.005% to 3.0% of Si, 0.05% to 3.0% of Mn, 0.001% to 0.2% of P, 0.001% to 0.35% of S, 0.002% to 0.035% of N and 0.05% to 1.0% of Al, in a case in which [Al%] and [N%] represent the mass % of Al and N in the steel respectively, [Al%]−(27/14)×[N%]≧0.05% is satisfied, is the other elements are included as necessary, and a balance consisting of Fe and inevitable impurities, is used, and a cutting process is carried out on the steel for machine structural use using water-insoluble cutting oil in which the amount of dissolved oxygen is 4 volume % to 16 volume %.

Find Patent Forward Citations

Aiso, Toshiharu. (2015). Method of cutting steel for machine structural use (U.S. Patent No. 9156117). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9156117

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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