EP 3181250 B1 20190918 - METHOD OF MAKING HOLLOW METALLIC WORKPIECES
Title (en)
METHOD OF MAKING HOLLOW METALLIC WORKPIECES
Title (de)
VERFAHREN ZUM HERSTELLEN HOHLER METALLISCHER WERKSTÜCKE
Title (fr)
PROCÉDÉ DE FABRICATION DE PIÈCES MÉTALLIQUES CREUSES
Publication
Application
Priority
AT 510672015 A 20151215
Abstract (en)
[origin: MX2016016264A] The invention relates to a method for producing hollow metallic workpieces from a jacket tube (5) having a profiled inner surface (2) and a lining (3) following the profiled inner surface (2) from a material layer forming a composite with the material of the jacket tube (5) , wherein the jacket tube (5) is forged over a mandrel. In order to provide advantageous manufacturing conditions, it is proposed that the material layer of the lining (3) is introduced into the jacket tube (5) preformed in the vicinity of the profiled inner surface (2), before the preformed jacket tube (5) with the material layer of the lining (3 ) is forged over the mandrel defining the profiled inner surface (2) of the workpiece.
IPC 8 full level
B21C 37/15 (2006.01); B21J 15/12 (2006.01)
CPC (source: AT EP)
B21C 37/154 (2013.01 - EP); B21J 5/12 (2013.01 - AT); B21J 15/12 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3181250 A1 20170621; EP 3181250 B1 20190918; AT 518129 A1 20170715; AT 518129 B1 20190815; ES 2760949 T3 20200518; MX 2016016264 A 20180607
DOCDB simple family (application)
EP 16201891 A 20161202; AT 510672015 A 20151215; ES 16201891 T 20161202; MX 2016016264 A 20161208