Showing papers by "Wayne Eric Voice published in 2010"
TL;DR: In this paper, the threshold water-hammer pressure for eroding the target material and for achieving uniform erosion were in the vicinity of 800 MPa and 1 GPa, respectively.
87 citations
Patent•
12 Nov 2010TL;DR: In this paper, a hot isostatic pressing HIP operation was performed on a component made from a powder material such as a titanium alloy, while the powder material was in contact with a molding surface of a rigid, usable molding tool.
Abstract: A component is manufactured from a powdered material such as a titanium alloy, by performing a first hot isostatic pressing HIP operation on the powdered material 14 while the powdered material is in contact with a moulding surface 8 of a rigid, usable moulding tool 2 The first HIP operation creates a non-porous shaped surface 16 on a partially consolidated component 14, but avoids bonding or reaction between the partially consolidated component 14 and the moulding tool 2 After separation of the partially consolidated component 14 from the moulding tool 2, the partially consolidated component 14 is subjected to a second HIP operation in which the powdered material is fully consolidated
10 citations
Patent•
24 Jun 2010TL;DR: In this article, a method of forming a component (30) by isostatic pressing is presented. But this method requires the use of a canister (4) and isostatically pressing the canister to form the component.
Abstract: A method of forming a component (30) by isostatic pressing, the method comprising: providing a canister (4) suitable for isostatic pressing, the canister comprising first and second membranes (14, 16) which, in use, are disposed within the canister (4); the first and second membranes (14, 16) defining a component cavity (24) disposed between the first and second membranes (14, 16), a first tool cavity (26) disposed between the first membrane (14) and an adjacent wall (10) of the canister (4), and a second tool cavity (28) disposed between the second membrane (16) and another adjacent wall (12) of the canister (4); filling the component cavity (24) with the component powder for forming the component (30); filling the first and second tool cavities (26, 28) with a second tool powder; and isostatically pressing the canister (4) to form the component (30).
9 citations
Patent•
23 Aug 2010TL;DR: In this paper, a method of manufacturing a metal component from metal powder is described, which involves preparing a metal powder, providing gallium on at least part of the surface of at least some of the metal powder particles, encapsulating the powder in a container, evacuating the container to remove air and/or gas from the container, sealing the container and hot isostatically pressing it to produce the metal component.
Abstract: A method of manufacturing a metal component from metal powder comprises preparing (12) a metal powder, providing (14) gallium on at least part of the surface of at least some of the metal powder particles, encapsulating (16) the metal powder in a container, evacuating (18) the container to remove air and/or gas from the container, sealing (20) the container, hot isostatically pressing (22) the container to consolidate the metal powder particles to produce the metal component and removing (24) the container from the metal component. The process is used to produce gas turbine engine metal components, for example turbine discs with improved fatigue properties.
2 citations