METHOD FOR MANUFACTURING TUBE HAVING EXCELLENT OUTSIDE DIAMETER ACCURACY WITH HIGH EFFICIENCY

Title:

METHOD FOR MANUFACTURING TUBE HAVING EXCELLENT OUTSIDE DIAMETER ACCURACY WITH HIGH EFFICIENCY

Document Type and Number:

Japanese Patent JP2005334901

Kind Code:

A

Abstract:

To provide a method in which an outer surface of a tube is sufficiently smoothed, and the tube having excellent outside diameter accuracy is obtained with high efficiency, in other words, a method for manufacturing the tube having excellent outside diameter accuracy.

The outside diameter accuracy is enhanced by stamping out a tube 5 by a die 2, and the tube is continuously fed into the die by a tube feeding means 11 on the die inlet side. The tube feeding means preferably includes a caterpillar, an endless belt 7, an intermittent feeding machine 8, a press or a grooved roll 9.

Inventors:

KENMOCHI KAZUHITO
NAGAHAMA TAKUYA
SAKATA TAKASHI

Application Number:

JP2004154170A

Publication Date:

December 08, 2005

Filing Date:

May 25, 2004

Export Citation:

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Assignee:

JFE STEEL KK

International Classes:

B21C1/16; B21C1/26; (IPC1-7): B21C1/16; B21C1/26

Attorney, Agent or Firm:

Eiichi Kobayashi

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