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Patent Searching and Data


Title:
TURBINE BLADE FORMING DEVICE
Document Type and Number:
Japanese Patent JPS5935844
Kind Code:
A
Abstract:

PURPOSE: To execute continuously a lot of roll-working and draw-working by one set of machine device, by providing a means for holding both ends of a blank and driving a reciprocating motion, plural groups of rolling rolls wich are made to press-contact and are separated to and from both faces of the blank and a die supporting means which advances to a position of the blank executing the reciprocating motion, and shunts.

CONSTITUTION: Both ends of a blank 4 are held by a pair of holding means 15, the blank 4 is heated by supplying a high frequency current to a heating coil and cooling nozzle 23, an upper roll 2 and a lower roll 3 are driven to execute a reciprocating rotation, the blank 4 is subjected to one end half reciprocating motion, and rolling of three stages is executed. In case of this rolling operation, a pair of drawing-out tables 12 are moved in the rolling direction by rotating a chain 18, and tension is provided to the blank 4 by a pair of tension balancing oil pressure cylinder 13. When the roll-working is ended, the blank 4 is made to pass through a die supported by a die supporting base 24, and draw-working is performed by driving the chain 18.


Inventors:
KAWADA YOUICHI
KUROUME HIROSHI
Application Number:
JP14342582A
Publication Date:
February 27, 1984
Filing Date:
August 20, 1982
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B21C3/08; B21C37/00; B21H7/16; (IPC1-7): B21C1/00
Domestic Patent References:
JPS57193224A1982-11-27
Attorney, Agent or Firm:
Masami Akimoto