K.k.endo Seisakusho

Dymco Limited

Other

Youji Ito

Masaru Sakuma

A method of fabricating a circular-shaped metal structure includes the steps of (a) rotating a pipe around an axis thereof, the pipe being composed of a plastic-workable metal, (b) moving a jig towards the pipe in a direction perpendicular to the axis until the jig makes contact with an outer surface of the pipe, and compressing the jig onto the pipe, (c) moving the jig in a direction in parallel with the axis with the jig being compressed onto the pipe while the pipe is kept rotated, (d) measuring a thickness of a wall of the pipe during the step (c), and (e) adjusting a pressure with which the jig is compressed onto the pipe, in accordance with the thickness measured in the step (d).

Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same

A circular-shaped metal structure is fabricated by plastic-working and has a wall thickness in the range of 0.03 mm to 0.09 mm both inclusive. A film composed of one of (a) silicon and fluorocarbon resin and (b) copper is coated on a surface of the circular-shaped metal structure.

Circular-shaped metal structure and method of fabricating the same

A circular-shaped metal structure formed by spinning working has a thickness equal to or smaller than 0.09 mm. The structure may be used as a photosensitive drum or fixing belt in an electrophotographic printer.

Circular-shaped metal structure

A method of fabricating a circular-shaped metal structure, includes the steps of (a) rotating a pipe around an axis thereof, the pipe being composed of a plastic-workable metal, and (b) applying drawing to an outer wall of the pipe with the pipe being kept rotated, to reduce a wall thickness of the pipe and lengthen a wall of the pipe. A resultant circular-shaped metal structure fabricated by the method could have a thickness equal to or smaller than 0.09 mm.

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Tsubame, Japan

Youji Ito