METHOD FOR FORMING GROOVE

PURPOSE:To form a shaft sealing O-ring groove that the tolerance of dimension can be enough satisfied by restricting a body to be formed to the rotation impossible state and the movement impossible state, and synchronously revolving a rolling die. CONSTITUTION:A body W to be formed is restricted wit...

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Bibliographic Details
Main Authors FUJIWARA TETSUO, ISO KENJI, KIMURA KENZO, FUKUOKA YOSHIKATSU, TATSUMI HIDEO
Format Patent
LanguageEnglish
Published 15.02.1994
Edition5
Subjects
MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
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Summary:PURPOSE:To form a shaft sealing O-ring groove that the tolerance of dimension can be enough satisfied by restricting a body to be formed to the rotation impossible state and the movement impossible state, and synchronously revolving a rolling die. CONSTITUTION:A body W to be formed is restricted with a clamp 2 of a forming machine 1 so as not to be rotated. As a result, the body W to be formed can be applied with the compressive force of the axial direction. In this state, because plural numbers of dies 8 rotating around its own axis is pressed to the body (W) to be formed while revolving in a vertical surface to the axis of the body W to be formed, each die 8 begins to rotate with the friction force or the tangential force from the point of time being brought in contact with the body W to be formed, and rolls around the body W to be formed. Therefore, the equilibrium of force is kept with plural numbers of dies 8 in the radial direction of the body W to be formed, and because the compressive force is applied in the axial direction, the enlargement of groove width due to the escape of axial direction of the material with the pressed die 8 or the impulse of the die can prevented.
Bibliography:Application Number: JP19920195425