Ring molded article manufacturing method and ring material

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10519795
SERIAL NO

15507619

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Abstract

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Various implementations include a method of manufacturing a ring molded article. The ring molded article has two convex portions which respectively protrude on both sides of the ring molded article in a direction of a center axis thereof and extend in a direction of a circumference of the ring molded article. The ring material is placed inside two molds on which concave portions respectively corresponding to the convex portions are formed. The ring material is supported by a region on an outer peripheral side from an outer peripheral side corner in the concave portion of one of the two molds and a region on an inner peripheral side from an inner peripheral side corner in the concave portion of another of the two molds. The ring material is then forged so as to be pressed by the two molds in a direction of a center axis of the ring material.

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Patent Owner(s)

Patent OwnerAddress
HITACHI METALS LTDTOKYO 108-0075

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ohsone, Jun Okegawa, JP 6 11
Takizawa, Hideo Saitama, JP 14 82
Watanabe, Masayuki Okegawa, JP 174 2113

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