Method for forming a high-tooth spline of a hollow shaft and hol

Details Method for forming a high-tooth spline of a hollow shaft and hol Method for forming a high-tooth spline of a hollow shaft and hol

1996-11-20

1998-11-03

Knight, Anthony

Joints and connections

Interfitted members

Longitudinally splined or fluted rod

403404, 72359, 7237001, B21D 2200, B21D 4100

Patent

active

058299114

ABSTRACT:
A method for forming a high-tooth spline of a hollow shaft which comprises a step of press-inserting a workpiece of a hollow shaft into a die having a spline-shaped internal surface by a punch, for backing up a portion of the workpiece corresponding to the spline-shaped surface of the die from the inside thereof, having a tip portion made of a material having a hardness lower than that of the die, and a step of forming a spline portion on the workpiece. A hollow shaft having a high-tooth spline formed by the above method.

REFERENCES:
patent: 1802695 (1931-04-01), Bennett
patent: 2599575 (1952-06-01), Morgan
patent: 3024626 (1962-03-01), Frischman
patent: 3224243 (1965-12-01), Van Deberg
patent: 4895700 (1990-01-01), Davidson et al.
patent: 5184495 (1993-02-01), Chunn et al.
patent: 5211048 (1993-05-01), Takahara et al.
patent: 5406825 (1995-04-01), Horie et al.
patent: 5544548 (1996-08-01), Iihara et al.
Tabor, The Hardness Of Metals, Clarendon Press, pp. 164-165, 1951.

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