公开(公告)号：US10363603B2

公开(公告)日：2019-07-30

申请号：US15202066

申请日：2016-07-05

Applicant: ROLLS-ROYCE plc

Inventor： John H Boswell

IPC: B22F3/10 ,  B22F3/105 ,  B33Y10/00 ,  B28B1/00 ,  B29C64/153

Abstract: A powder deposition apparatus for producing a component comprises a base plate, an annular stack of heating elements, accommodating the base plate, one or more insulating elements, being interleaved between adjoining heating elements, a mechanism operable to deposit a plurality of layers of a powder material onto the base plate, and a laser energy source operable to selectively fuse a portion of the deposited layer. The annular stack of heating elements is sized such that a predetermined clearance is defined between the component and the annular stack of heating elements.As successive layers of the powder material are deposited onto the base plate, the base plate is lowered into the stack of heating elements, the heating elements being actuated sequentially to maintain a pre-determined temperature profile in the deposited layers.

公开(公告)号：US10456835B2

公开(公告)日：2019-10-29

申请号：US15695650

申请日：2017-09-05

Applicant: ROLLS-ROYCE plc ,  TWI LIMITED

Inventor： John H Boswell ,  Jeffrey Allen ,  Carl Hauser ,  Neil Preece

IPC: B22F3/105 ,  B22F5/00 ,  B22F3/115 ,  B22F3/24 ,  F01D25/24 ,  B23P15/00 ,  B22F7/08

Abstract: A method of attaching a projection to a thin walled component, the thin walled component having a first surface and an opposite second surface, the method comprises the steps of: (i) providing a thin walled component; (ii) identifying a first position on the first surface of the thin walled component; (iii) building a hollow thin walled lattice structure on the second surface at a second position using a liquid metal deposition process, the second position corresponding to the first position; and (iv) building a projection on the first surface at the first position using a liquid metal deposition process.

公开(公告)号：US10351940B2

公开(公告)日：2019-07-16

申请号：US15685642

申请日：2017-08-24

Applicant: ROLLS-ROYCE plc

Inventor： John H Boswell

IPC: C22F1/10 ,  B22D27/04 ,  B24C1/10 ,  F01D5/28 ,  B24C1/08 ,  C21D7/06

Abstract: A method of manufacturing a component from a nickel-based superalloy comprises the steps of: providing a vacuum induction casting furnace; positioning a component mould onto a chill plate within the furnace; casting a component blank; peening the surface of the component blank; applying a surface modification technique to the surface of the component blank; solution heat treating the component blank at or above the γ′-solvus temperature for the superalloy; and precipitation heat treating the component blank.