Honda Motor Co., Ltd.

Toshiya Hirata

Koji Saito

Takashi Yoshida

Fumio Sato

Satoshi Kanbayashi

Masahiko Masuzaki

Satoru Uchiumi

Nobuhiro Asai

Masato Ujihashi

Kazuhiko Kitanaka

Naohide Unno

Hiroshi Sugiyama

Masato Ide

Noriyuki Namba

A grindstone is provided with a base () and a plurality of abrasive grains () aligned in a row and bonded on a surface () of the base (). Each of the abrasive grains () has a relief surface () with a relief angle of a predetermined angle (&#x3b2;).

Grindstone, grindstone manufacturing method, boring tool, abrasive grain positioning jig, and relief surface forming method

A manufacturing apparatus, of a grinding stone which is manufactured by attaching abrasive grains respectively having polyhedral shapes in which mutually opposed surfaces are parallel to each other to a base member, is provided with: an abrasive grains classifying apparatus adapted to classify the abrasive grains based on sizes of the abrasive grains defined by face-to-face distances between the mutually opposed surfaces; and an attaching apparatus adapted to attach the abrasive grains classified by the abrasive grains classifying apparatus to the base member. The attaching apparatus is provided with: a template which is disposed above the base member to be movable with respect to the base member and formed with a guide hole through which the classified abrasive grains pass; a vibration generator connected to the template or the base member and adapted to apply a vibration to the abrasive grains passing through the template; and an electrolytic deposition bath adapted to electrolytic deposit the abrasive grains passing through the template.

Grinding stone, manufacturing method of grinding stone, and manufacturing apparatus of grinding stone

A metal bonded grinding stone is manufactured by heating and pressurizing a material including abrasive grains, a cobalt, a tungsten disulfide and a copper tin alloy to obtain a sintered product, and rapid-cooling the sintered product.

Metal bonded grinding stone, and method of manufacturing the same

An abrasive grains classifying apparatus is used to classify abrasive grains based on their sizes that can be determined by distances between mutually opposed surfaces of the respective abrasive grains. The abrasive grains classifying apparatus is provided with: a first gap portionwhich includes two rollersanddisposed at a predetermined distance Lfrom each other and also which classifies the abrasive grainsinto first abrasive grainsandcapable of passing through between the rollersandand second abrasive grainsincapable of passing through between the two rollersand; and a second gap portionwhich includes two rollersanddisposed at a distance Lsmaller than the distance Lin the first gap portionfrom each other.

Abrasive grains classifying apparatus

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Tochigi, Japan

Toshiya Hirata