筒状部材の成形方法 - Honda motor industry stock company

Title:

筒状部材の成形方法

Document Type and Number:

Japanese Patent JP4566132

Kind Code:

B2

Abstract:

There is provided a method by which a member having an undercut in the inner peripheral portion thereof can be formed readily. To form a material (1) formed with a recess (2) and the undercut (3) by using a swaging device, while the material (1) is first gripped by a clamper (11), and a mandrel (12) is inserted into the recess (2) of the material (1). The mandrel (12) used has an outside diameter equal to the inside diameter of a blind hole of an aimed product (fuel injection nozzle). Then, the material (1) is pushed in by the mandrel (12) to a position at which the material (1) abuts on a stopper (13), and the outside surface of the material (1) is struck by swaging dies (8) to perform a swaging operation. This swaging operation reduces the inside diameter of the recess (2) to the outside diameter of the mandrel (12), with the undercut (3) left.

Inventors:

Takayuki Onuma
Takashi Kobayashi
Tsutomu Ando
Hidetaka Hiruma
Ryotaro Takada

Application Number:

JP2005516423A

Publication Date:

October 20, 2010

Filing Date:

October 21, 2004

Export Citation:

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