A.l.m.t. Corporation

Takahiro Hirata

Akihiro Koike

Yukio Okanishi

In relation to a blade cutting stone or concrete, a blade, preventing wearing of a core while preventing the core from wobbling, cuttable at a stable speed is provided. In a blade formed by providing slots on the outer peripheral edge of a circular core and fixing a superabrasive layer to a portion of the outer peripheral surface of the core located between the slots, the superabrasive layer consists of a first superabrasive layer having an extension formed by partially extending the superabrasive layer toward the inner periphery of the core and a second superabrasive layer. A reinforcing superabrasive layer extending from the outer periphery toward the inner periphery of the core is formed on the inner peripheral side of the second superabrasive layer while the reinforcing superabrasive layer is located closer to the outer periphery than a radial central portion of the core, and an outer peripheral end of the reinforcing superabrasive layer is located closer to the outer periphery than an inner peripheral end of the extension of the first superabrasive layer. The second superabrasive layer can also be provided with an extension having a relatively short radial length with respect to the extension of the first superabrasive layer.

Diamond blade

Rotary cutting diamond grinder

A superabrasive wheel ( ) for mirror finishing includes an annular base plate ( ) having an annular end surface ( ) and a plurality of superabrasive members ( ), each having a peripheral end surface ( ), arranged along the periphery of the annular base plate ( ) at intervals from each other in a circumferential direction and fixed onto the end surface ( ) of the base plate ( ). Each of the superabrasive members ( ) has a flat plate shape, and is so arranged that the peripheral end surface ( ) is substantially parallel to the rotary shaft of the superabrasive wheel ( ). A surface ( ) defined by the thickness of the flat plate shape of each superabrasive member ( ) is fixed onto the end surface ( ) of the base plate ( ). In the superabrasive members ( ), superabrasive grains are bonded by a binder of a vitrified bond. In another superabrasive wheel ( ) for mirror finishing, each one of plural superabrasive members ( ) has an angularly bent V-shaped plate configuration or a curved C-shaped plate configuration, and is so arranged that a peripheral end surface ( ) thereof is substantially parallel to the rotary shaft of the superabrasive wheel ( ).

Growing community of inventors

Fujieda, Japan

Takahiro Hirata