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:
Aug. 16, 2011
Filed:
Apr. 04, 2006
Sumio Kamiya, Toyota, JP;
Hisao Iwase, Aichi, JP;
Tetsuya Nagaike, Toyota, JP;
Hiroshi Eda, Kasama, JP;
Libo Zhou, Hitachi, JP;
Sumio Kamiya, Toyota, JP;
Hisao Iwase, Aichi, JP;
Tetsuya Nagaike, Toyota, JP;
Hiroshi Eda, Kasama, JP;
Libo Zhou, Hitachi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
A precision machining method enabling grinding with high accuracy is provided. The method includes a first step of producing an intermediate ground workpiece by roughly grinding a workpiece (a) with a diamond grinding wheel (b), and a second step of producing a final ground workpiece by grinding the intermediate ground workpiece with a grinding wheel for CMG. In the first step, feed of the rotator () and the base () is controlled in multiple stages with different feed speeds according to control based on the amount of movement, and in the second step, movement of the rotator () and the base () is controlled with a constant pressure or in multiple stages having different constant pressures.