Pressing method and method of manufacturing mechanical apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11931983
APP PUB NO 20210260844A1
SERIAL NO

17266851

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Abstract

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A method of performing pressing on a workpiece using a press machine. The pressing method includes: performing pressing on the workpiece between a lower die and an upper die by causing the upper die to approach the lower die by using the hydraulic cylinder in a state in which the workpiece is disposed between the lower die and the upper die, and performing the pressing on the workpiece between the lower die and the upper die, in a state in which a shape of each of the frame, the lower die and the upper die has a rotationally symmetric shape about the reference axis and in which the workpiece center axis coincides with the reference axis.

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Patent Owner(s)

Patent OwnerAddress
NSK LTD6-3 OHSAKI 1-CHOME SHINAGAWA-KU TOKYO 141-8560

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hagiwara, Nobuyuki Fujisawa, JP 50 178

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