EP 1586392 A1 20051019 - DEFORMED ELEMENT PIPE FOR HYDRAULIC BULGING, HYDRAULIC BULGING DEVICE USING THE ELEMENT PIPE, HYDRAULIC BULGING METHOD USING THE ELEMENT PIPE, AND HYDRAULIC-BULGED PRODUCT
Title (en)
DEFORMED ELEMENT PIPE FOR HYDRAULIC BULGING, HYDRAULIC BULGING DEVICE USING THE ELEMENT PIPE, HYDRAULIC BULGING METHOD USING THE ELEMENT PIPE, AND HYDRAULIC-BULGED PRODUCT
Title (de)
VERFORMTES ELEMENTROHR FÜR HYDRAULISCHES AUSBAUCHEN, DASELEMENTROHR VERWENDENDE HYDRAULISCHE AUSBAUCHVORRICHTUNG, DAS ELEMENTROHRVERWENDENDES HYDRAULISCHES AUSBAUCHVERFAHREN UND HYDRAULISCH AUSGEBAUCHTESPRODUKT
Title (fr)
TUYAU A ELEMENT DEFORME POUR GONFLEMENT HYDRAULIQUE, DISPOSITIF DE GONFLEMENT HYDRAULIQUE UTILISANT LE TUYAU A ELEMENT, PROCEDE DE GONFLEMENT HYDRAULIQUE UTILISANT LE TUYAU A ELEMENT, ET ARTICLE GONFLE PAR COMMANDE HYDRAULIQUE
Publication
Application
Priority
- JP 0314284 W 20031110
- JP 2002325801 A 20021108
Abstract (en)
A profile element pipe for hydraulic bulging of the present invention has a peripheral length with an outer diameter gradually increasing or decreasing from one axial side toward the other thereof and has a parallel part formed on at least one end thereof. According to a bulging device and a bulging method using this profile element pipe, for example, even when a profile steel pipe having a cross sectional shape varying in the axial direction as in a tapered pipe is hydraulically bulged, a bulging in which an internal pressure loading and an shaft pressing are combined with each other can be performed to provide a larger expansion ratio than a conventional case and a joining and socket connection thereof to the other part can also be easily performed. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 26/033 (2011.01); B21D 26/045 (2011.01); B21D 51/10 (2006.01); B21D 51/16 (2006.01); B21D 53/88 (2006.01)
CPC (source: EP KR US)
B21D 26/033 (2013.01 - EP KR US); B21D 26/045 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1586392 A1 20051019; EP 1586392 A4 20090826; AU 2003277659 A1 20040607; AU 2003277659 A8 20040607; CN 100400189 C 20080709; CN 1711142 A 20051221; JP WO2004041458 A1 20060302; KR 100634917 B1 20061018; KR 20050071669 A 20050707; TW 200417427 A 20040916; TW I267410 B 20061201; US 2005257587 A1 20051124; US 2007234771 A1 20071011; WO 2004041458 A1 20040521
DOCDB simple family (application)
EP 03810679 A 20031110; AU 2003277659 A 20031110; CN 200380102847 A 20031110; JP 0314284 W 20031110; JP 2004549651 A 20031110; KR 20057008028 A 20050506; TW 92131290 A 20031107; US 12319605 A 20050506; US 80653107 A 20070601