METHOD AND SYSTEM PROPOSED FOR THE MANUFACTURING OF HOLLOW PROFILE OBJECTS

WIPO Patent Application WO/2012/030244

A4

For the manufacture of hollow and profiled bodies a mould (1) equipped with a vibration system (2) is provided and is mounted on a guiding and driving system ( 3 ) capable of rotation and translation. A heated billet ( 5 ) placed in the mould (1) is pushed by a pressing device (4) towards a deformation mandrel (6) lubricated by a lubrication system (8), and connected to a mandrel driving and positioning system (7) which on its turn may have a relative rotation and translation motion compared to the machine's body, which ultimately gives a combined movement when deforming the billet. Following metal working, a hollow or profiled body (10) will result with an outer profile according to the profile given by the inner profile and motion of the mould and an interior profile corresponding to the profile generated by the outer profile and motion of the mandrel.

WO/2016/192709	METHOD AND DEVICE FOR PRODUCING BIMETALLIC PIPES
JPS6036842	[Title of the Invention] A manufacturing method of a different-species metallic coating multi layer tube

TUDOR MIRCEA (RO)
BIZGAN ADRIAN (RO)
IACOBITA ANDREI (RO)
CALARASANU GEORGE (RO)
CALARASANU DUMITRU (RO)

PCT/RO2011/000014

August 02, 2012

April 06, 2011

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MB TELECOM LTD (RO)
TUDOR MIRCEA (RO)
BIZGAN ADRIAN (RO)
IACOBITA ANDREI (RO)
CALARASANU GEORGE (RO)
CALARASANU DUMITRU (RO)

B21C37/15; B21C37/20; B21J5/10; B21J9/04; B21J15/10

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