EP 2262599 B1 20141112 - NET-SHAPE OR NEAR NET-SHAPE POWDER ISOSTATIC PRESSING PROCESS
Title (en)
NET-SHAPE OR NEAR NET-SHAPE POWDER ISOSTATIC PRESSING PROCESS
Title (de)
ENDFORM- ODER ENDFORMNAHES ISOSTATISCHES PULVERPRESSVERFAHREN
Title (fr)
PROCÉDÉ DE COMPRESSION ISOSTATIQUE DE POUDRE À FINITION IMMÉDIATE OU À FINITION PRESQUE IMMÉDIATE
Publication
Application
Priority
- GB 2009000757 W 20090320
- GB 0805242 A 20080320
Abstract (en)
[origin: WO2009115821A1] A method of producing a net or near net-shape component from metal powder comprises producing an insert of accurate dimensions corresponding to the dimensions of a bore to be created in the finished component, the bore having a length of at least 750mm, supporting the insert within a mould cavity, filling the mould cavity with metal powder, subjecting the powder to isostatic pressing, and subsequently removing the material of the insert. The mould can be an independent mould that is removed after an initial step to bind the powder together into a pre-form, and the pre-form is then encapsulated in a suitable containment, such as a canister or a sprayed coating. The insert can be a metallic insert of a material, such as copper, that is subsequently removable by chemical etching. The insert can be coated with a material that is amenable to removal by etching, and to enable the insert to be extracted. A metallic insert can be coated with a material that provides a diffusion barrier to prevent the material of the insert from diffusing by atomic diffusion into the powder being consolidated during HIPing.
IPC 8 full level
B22F 5/10 (2006.01)
CPC (source: EP US)
B22F 5/10 (2013.01 - EP US); Y10T 428/12361 (2015.01 - EP US)
Designated contracting state (EPC)
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 SE SI SK TR
DOCDB simple family (publication)
WO 2009115821 A1 20090924; BR PI0909088 A2 20150929; CN 102026752 A 20110420; EA 019527 B1 20140430; EA 201001527 A1 20110429; EP 2262599 A1 20101222; EP 2262599 B1 20141112; ES 2530092 T3 20150226; GB 0805242 D0 20080430; MX 2010010146 A 20101020; US 2011033725 A1 20110210
DOCDB simple family (application)
GB 2009000757 W 20090320; BR PI0909088 A 20090320; CN 200980109812 A 20090320; EA 201001527 A 20090320; EP 09721920 A 20090320; ES 09721920 T 20090320; GB 0805242 A 20080320; MX 2010010146 A 20090320; US 73620709 A 20090320