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:
Jul. 16, 2002
Filed:
Aug. 31, 2000
Tsutomu Takahashi, Iwaki, JP;
Naoki Shimomae, Iwaki, JP;
Tetsuji Yamashita, Iwaki, JP;
Hanako Hata, Iwaki, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
In the electrodeposited abrasive wheel of the abrasive tool according to the present invention, plural mound parts which are upheaved at the central domain of base metal in almost columnar shape, are arranged mostly in the shape of lattice. An abrasive grain layer is formed on a base metal and plural ultra abrasive grains are adhered only to each mound parts by electrodeposited metal phase and referred as the small abrasive-grain-layer parts 24, respectively. Ultra abrasive grains are laid out at corner R part and top of the mound parts at the small abrasive-grain-layer parts Ultra abrasive grains at each small abrasive-grain-layer parts are set as 11-500 pieces, and the rate which ultra abrasive grains occupy to the whole area of abrasive grain layer accounted by plane projection is set as 20%-80% of the range. At the time of grinding, only ultra abrasive grains contact to grinding work piece, then high abutment pressure is maintained, and sharpness and the discharge performance of ground wastes are good.