REAMER AND A METHOD OF USING THE SAME

Title:

REAMER AND A METHOD OF USING THE SAME

Document Type and Number:

WIPO Patent Application WO/1999/021674

Kind Code:

A1

Abstract:

A reamer (T) has first cutting edge (3) for finish-machining the inner circumferential surface of a through hole (H) of the work (W), and second and third cutting edges (5, 6), at stepped portions (4¿1?, 4¿2?) at the end of a small-diameter portion (4) that is formed by cutting the first cutting edge (3), for chamfering first and second opening edges (H¿1?, H¿2?) of the through hole (H), respectively. After finish-machining the inner circumferential surface of the through hole (H) with the first cutting edge (3) by rotating the reamer (T) about its axis (Lt), the first and second opening edges (H¿1?, H¿2?) are chamfered by the second and third cutting edges (5, 6), respectively by moving the reamer (T) along a circle whose center is the axis (Lw) of the through hole (H) and which has a radius r. Therefore the finish-machining and the chamfering of the through hole of the work can be performed with a single reamer.

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Inventors:

NISHIKAWA TSUNEO (JP)

Application Number:

PCT/JP1998/004860

Publication Date:

May 06, 1999

Filing Date:

October 27, 1998

Export Citation:

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Assignee:

HONDA MOTOR CO LTD (JP)
NISHIKAWA TSUNEO (JP)

International Classes:

B23C5/12; B23B51/10; B23C5/10; B23D77/00; B23D77/14; (IPC1-7): B23D77/14

Foreign References:

JPS4980477U	1974-07-11
JPS62241841A	1987-10-22
EP0075061A1	1983-03-30

Attorney, Agent or Firm:

Ochiai, Takeshi (Shinbashi 5-chome Minato-ku Tokyo, JP)

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