シリンダの加工方法 - Kayaba Industry Co., Ltd.

Title:

シリンダの加工方法

Document Type and Number:

Japanese Patent JP4354133

Kind Code:

B2

Abstract:

A manufacturing method for cylinder, comprises a step of inserting a cored bar 2 into piping material 1 having a reduced inner radius at one end and supporting the end of the cored bar with the reduced radius section of the piping material 1, and a step of rotating the piping material 1 and the cored bar 2, displacing the piping material 1 in an axial direction while passively rotating one or a plurality of rollers compressing the outer periphery of the piping material 1 and applying a spinning operation to the piping material while pressuring and retaining the piping material between the cored bar 2 and the roller 3. Thus the thickness of the middle section of the piping material is made less than the thickness of the end sections by moving the roller into a position closer to the cored bar in the middle section than in the end sections of the piping material. In this manner, processing of the cylinder can be effectively performed without wastage of materials.

Inventors:

Kaneko Ryuichi

Application Number:

JP2001243163A

Publication Date:

October 28, 2009

Filing Date:

August 10, 2001

Export Citation:

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