球状体の研磨装置、球状体の研磨方法および球状部材の製造方法

Japanese Patent JP5334040

B2

A spherical body polishing apparatus capable of reducing polishing costs includes a rotating disk (10) having a rotating disk polishing surface (10A) and a fixed disk having a fixed disk polishing surface opposed to the rotating disk polishing surface (10A). The rotating disk polishing surface (10A) is capable of relative rotation while keeping being opposed to the fixed disk polishing surface. The rotating disk polishing surface (10A) has a groove portion (11) formed therein and extending circumferentially along the rotation. The rotating disk (10) having the groove portion (11) therein includes an abrasive grain layer (18) having a higher hardness than that of a material ball which is a spherical body and a holding layer (19) formed on the abrasive grain layer (18) and having a lower hardness than that of the abrasive grain layer (18). The groove portion (11) is formed to penetrate the holding layer (19) in a depth direction and to reach the abrasive grain layer (18).

WO/1997/038650	ARTIFICIAL JOINT, PARTICULARLY AN ARTIFICIAL HIP JOINT
JP6536175	Sphere polishing device and sphere polishing method
JP3225548	SPHERE GRINDING ATTACHMENT

Yutaka Tanaka
Muramatsu victory

JP2008258419A

November 06, 2013

October 03, 2008

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ntn corporation

B24B11/06; B24B37/02; B24D3/34; B24D7/00

JP162912C2
JP2001025948A
JP2002263994A
JP55501173A
JP53105786A
JP2003214435A

US2964886

Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa

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