US 12,083,600 B2
Isostatic pressing
Gary R Jones, Derby (GB); John L Sulley, Derby (GB); and Edward D Warner, Derby (GB)
Assigned to ROLLS-ROYCE PLC, London (GB)
Filed by Rolls Royce plc, London (GB)
Filed on Feb. 19, 2021, as Appl. No. 17/179,526.
Claims priority of application No. 2002538.3 (GB), filed on Feb. 24, 2020.
Prior Publication US 2021/0346952 A1, Nov. 11, 2021
Int. Cl. B22F 3/15 (2006.01); B22F 5/04 (2006.01); B22F 5/10 (2006.01)
CPC B22F 3/15 (2013.01) [B22F 5/04 (2013.01); B22F 5/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of manufacturing a component, the method comprising the steps of:
providing a canister that encloses an internal cavity, the canister comprising at least a first wall and a second wall, wherein:
the first wall and the second wall are of different materials;
the first wall has only one first thickness throughout an entire length of the first wall that is different than only one second thickness throughout an entire length of the second wall; and
at least a section of the canister that is provided is pre-coated;
filling the internal cavity with a powdered material;
performing an isostatic pressing process on the canister that is filled to consolidate the powdered material; and
retaining the canister as an integral part of the component such that an internal structure of the component comprises the consolidated powder material and the canister forms at least part of a surface of the component that covers the internal structure, wherein: the at least the section of the canister is provided pre-coated such that, after performing the isostatic pressing process, at least part of the component is coated.