A honing tool and super-high precision finishing method using said honing tool

(19)

(11)

EP 0 839 606 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	27.09.2000 Bulletin 2000/39

(43)	Date of publication A2:
	06.05.1998 Bulletin 1998/19

(21)	Application number: 98200011.9

(22)	Date of filing: 05.01.1998

(51)	International Patent Classification (IPC)⁷: B24B 33/02, B24B 33/08

(84)	Designated Contracting States:
	CH DE FR GB IT LI

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	90911698.0 / 0610498

(71)	Applicant: TOYO CO., LTD.
	Aichi-ken 470-01 (JP)

(72)	Inventor:
	Higashikawa, Katsutoshi Aichi-gun, Aichi-ken 470-01 (JP)

(74)	Representative: Barnfather, Karl Jon, Dr. et al
	Withers & Rogers, Goldings House, 2 Hays Lane London SE1 2HW London SE1 2HW (GB)

(54)	A honing tool and super-high precision finishing method using said honing tool

(57) The invention relates to a honing tool for carrying out honing working of a work with high accuracy and super precision finishing method using the honing tool. The honing tool is mainly constituted by a pilot section (5), a rough grinding section (7), a finish grinding section (10) and a correction section (13). The honing tool is sent at rapid speed while being reciprocated little, and the machining working and correction finishing of the straightness are carried out thereby the honing working is carried out. According to the invention, the machining working efficiency and the working accuracy can be improved, and the honing finishing with high straightness becomes possible.

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