Patents by Inventor Andrew David Wescott
Andrew David Wescott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220134433Abstract: A method of powder bed fusion additive manufacture includes forming a component in a powder bed in a layer-by-layer process. The method may include sintering, without melting, selected regions of powder with an energy beam to form at least one support adjacent to the component; and melting further selected regions of the powder bed with an energy beam to form a component by layer-by-layer melting of material. The method may include directing an energy beam at selected regions of powder to form a friable support, the friable support including bonded powder which act as a solid and provide compressive support; and melting further regions of the powder bed with an energy beam to form a component by layer-by-layer melting of material.Type: ApplicationFiled: March 10, 2020Publication date: May 5, 2022Applicant: RENISHAW PLCInventors: Geoffrey McFARLAND, Andrew David WESCOTT
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Patent number: 10427247Abstract: Apparatus and a method for forming a metallic component by additive layer manufacturing are provided. The method includes the steps of using a heat source such as a laser to melt the surface of a work piece and form a weld pool; adding wire or powdered metallic material to the weld pool and moving the heat source relative to the work piece so as to progressively form a new layer of metallic material on the work piece; applying forced cooling to the formed layer; stress relieving the cooled layer by applying a peening step, for example with a pulsed laser, and repeating the above steps as required to form the component layer by layer.Type: GrantFiled: March 18, 2013Date of Patent: October 1, 2019Assignee: BAE SYSTEMS plcInventors: Andrew David Wescott, Jagjit Sidhu
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Patent number: 9909605Abstract: A method for forming a joint between a fiber reinforced composite component and a metallic component and a joint are provided. The metallic component and the composite component each define a joint surface for mating with the joint surface of the other to join the two components together and the composite component defines a free surface opposed to the joint surface thereof. The joint surface of the metallic component defines an array of pins extending therefrom with each pin defining a pin head at an end distal from the joint surface. The method includes the steps of pressing together the joint surfaces of the two components whereby to cause the array of pins to penetrate through the fiber reinforcing material, and modifying the effective cross sectional shape of the pin heads whereby to increase the constraint applied to the composite component against peeling of the composite component from the joint surface of the metallic component.Type: GrantFiled: October 21, 2013Date of Patent: March 6, 2018Assignee: BAE SYSTEMS plcInventors: David Baker, Amir Rezai, Andrew David Wescott, Daniel Peter Graham
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Publication number: 20170343321Abstract: Modular armour is provided. The armour comprises a series of regularly-shaped armour elements and corresponding anchor elements releasably to anchor the armour elements to a platform. Each anchor element comprises an armour engaging section extending between first and second ends thereof, the first end being engageable with an armour mount on the platform and the second end including means releasably to secure the armour element, while engaged with the anchor element, to the platform. The platform may be fixed or mobile and includes land, water-born and air vehicles.Type: ApplicationFiled: December 4, 2015Publication date: November 30, 2017Applicant: BAE SYSTEMS plcInventors: NICHOLAS PARK, SIMON ANTHONY JENKINS, ANDREW DAVID WESCOTT, ELENA MAEVE WATSON
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Publication number: 20170326681Abstract: A method and apparatus for forming an object by additive layer manufacturing. The method comprises: a) applying, by a heat source (4), heat to a portion of a surface of a workpiece (1) sufficient to melt said portion; b) adding material to the melted portion and moving the heat source (4) relative to the workpiece (1) whereby progressively to form a layer of material (10) on the workpiece (1); c) cooling the formed layer (10) to bring at least part of the layer (10) to a state of crystallisation, there producing a modified workpiece; d) peening, using a plurality of independently controllable impact treatment devices (7), the modified work-piece so as to plastically deform the cooled at least part of the layer (10); and repeating steps a) to d) as required whereby to form the object.Type: ApplicationFiled: January 30, 2015Publication date: November 16, 2017Inventors: Jagjit Sidhu, Andrew David Wescott
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Publication number: 20170136694Abstract: Apparatus and a method of forming a composite component (8) by additive layer manufacturing are provided. The method includes the steps of providing an elongate tape (2) of carbon nanotubes (CNTs), applying stretching force to the tape (2) whereby to align the carbon nanotubes to the tape and form an aligned tape (27), impregnating the tape (27) with matrix material (40, 48, 50), forming the aligned tape (27) into portions (43) of required size and transferring the portions as required to a component build location whereby to form the component (8), layer by layer.Type: ApplicationFiled: February 4, 2015Publication date: May 18, 2017Applicant: BAE Systems plcInventors: Amir Rezai, Jagjit Sidhu, Andrew David Wescott
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Patent number: 9555475Abstract: Apparatus and a method for forming a metallic component by additive layer manufacturing are provided.Type: GrantFiled: November 6, 2013Date of Patent: January 31, 2017Assignee: BAE SYSTEMS plcInventors: Jagjit Sidhu, Andrew David Wescott, Mark Alfred Potter
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Patent number: 9278483Abstract: A selective layer melting or other additive layer fabrication method in which powdered material is fused by heating it with a pulsed laser, the pulses being modulated while the laser is traversing the substrate so as to control the thickness and/or width of the layer being formed. Initial layers of the fabrication structure may be formed more thickly than subsequent layers, e.g. by means of a CW laser, to reduce distortion. This aspect of the invention may be employed independently of the use of a pulsed laser to form the subsequent layers.Type: GrantFiled: April 27, 2010Date of Patent: March 8, 2016Assignee: BAE SYSTEMS PLCInventors: Andrew David Wescott, Benjamin Richard Moreland, Jagjit Sidhu
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Publication number: 20150306665Abstract: Apparatus and a method for forming a metallic component by additive layer manufacturing are provided.Type: ApplicationFiled: November 6, 2013Publication date: October 29, 2015Applicant: BAE SYSTEMS PlcInventors: Jagjit Sidhu, Andrew David Wescott, Mark Alfred Potter
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Publication number: 20150298241Abstract: The invention relates to the manufacture of hybrid joints more particularly to the manufacture of joints between parts made of differing materials and most particularly to the manufacture of a metallic component comprising a plurality of preformed projections which penetrate composite fabric within a composite part. Particularly there is a method of forming an array of projections on a surface of a metallic component, the method including the steps of bringing at least one preformed projection into at least close proximity to the surface of the component and causing a portion of the projection and a portion of the component in the region of an intersection thereof to at least partially melt, and causing them to be joined together.Type: ApplicationFiled: November 19, 2013Publication date: October 22, 2015Inventors: Daniel Peter Graham, David Baker, Amir Rezai, Andrew David Wescott
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Publication number: 20150260208Abstract: A method for forming a joint between a fibre reinforced composite component and a metallic component and a joint are provided. The metallic component and the composite component each define a joint surface for mating with the joint surface of the other to join the two components together and the composite component defines a free surface opposed to the joint surface thereof. The joint surface of the metallic component defines an array of pins extending therefrom with each pin defining a pin head at an end distal from the joint surface. The method includes the steps of pressing together the joint surfaces of the two components whereby to cause the array of pins to penetrate through the fibre reinforcing material, and modifying the effective cross sectional shape of the pin heads whereby to increase the constraint applied to the composite component against peeling of the composite component from the joint surface of the metallic component.Type: ApplicationFiled: October 21, 2013Publication date: September 17, 2015Applicant: BAE SYSTEMS plcInventors: David Baker, Amir Rezai, Andrew David Wescott, Daniel Peter Graham
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Publication number: 20150041025Abstract: Apparatus and a method for forming a metallic component by additive layer manufacturing are provided. The method includes the steps of using a heat source such as a laser to melt the surface of a work piece and form a weld pool; adding wire or powdered metallic material to the weld pool and moving the heat source relative to the work piece so as to progressively form a new layer of metallic material on the work piece; applying forced cooling to the formed layer; stress relieving the cooled layer by applying a peening step, for example with a pulsed laser, and repeating the above steps as required to form the component layer by layer.Type: ApplicationFiled: March 18, 2013Publication date: February 12, 2015Applicant: BAE SYSTEMS PLCInventors: Andrew David Wescott, Jagjit Sidhu
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Publication number: 20140202999Abstract: Apparatus and a method of forming a structure (304) are disclosed. The method includes applying a heat treatment to a first area (206) on a first surface (201A) of a work piece (200), wherein at least one dimension of the first area corresponds to a maximum design dimension of a structure (304) to be formed. The structure is then formed on a second area (303) on an opposite surface (201B) of the work piece, the second area having a location corresponding to the first area.Type: ApplicationFiled: August 8, 2012Publication date: July 24, 2014Inventors: Andrew David Wescott, Jagjit Sidhu
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Publication number: 20140190942Abstract: A method and apparatus for forming a layered structure. At least one raised area (202) is formed on a work piece (200), and a structure (302) is formed on the raised area using an Additive Layer Manufacturing (ALM) process.Type: ApplicationFiled: August 8, 2012Publication date: July 10, 2014Applicant: BAE SYSTEMS PLCInventors: Andrew David Wescott, Jagjit Sindhu
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Publication number: 20140015172Abstract: An additive layer manufacturing system and method are provided. The system includes a powder delivery system providing at least one powder feed from a powder stock to a powder exit adjacent a deposition point. The powder delivery system further comprises at least one valve system proximal to the powder exit for controlling the flow of the at least one powder feed at the deposition point.Type: ApplicationFiled: March 20, 2012Publication date: January 16, 2014Applicant: BAE SYSTEMS plcInventors: Jagjit Sidhu, Andrew David Wescott
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Publication number: 20120132627Abstract: A selective layer melting or other additive layer fabrication method in which powdered material is fused by heating it with a pulsed laser, the pulses being modulated whilst the laser is traversing the substrate so as to control the thickness and/or width of the layer being formed. Initial layers of the fabrication structure may be formed more thickly than subsequent layers, e.g. by means of a CW laser, to reduce distortion. This aspect of the invention may be employed independently of the use of a pulsed laser to form the subsequent layers.Type: ApplicationFiled: April 23, 2010Publication date: May 31, 2012Applicant: BAE SYSTEMS plcInventors: Andrew David Wescott, Benjamin Richard Moreland, Jagjit Sidhu
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Publication number: 20120132631Abstract: A selective layer melting or other additive layer fabrication method in which powdered material is fused by heating it with a pulsed laser, the pulses being modulated whilst the laser is traversing the substrate so as to control the thickness and/or width of the layer being formed. Initial layers of the fabrication structure may be formed more thickly than subsequent layers, e.g. by means of a CW laser, to reduce distortion. This aspect of the invention may be employed independently of the use of a pulsed laser to form the subsequent layers.Type: ApplicationFiled: April 27, 2010Publication date: May 31, 2012Applicant: BAE SYSTEMS PLCInventors: Andrew David Wescott, Benjamin Richard Moreland, Jagjit Sidhu
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Publication number: 20110305590Abstract: A method of fabricating an object is disclosed. A first layer of powder is deposited onto a substrate in a configuration defining a first cross-section of the object, and is consolidated by laser irradiation. To fabricate the object, further layers of powder are deposited onto the sintered first layer of powder to define further cross-sections of the object. The further layers are consolidated. A heat source is applied to the substrate to mitigate distortion of the substrate during fabrication of the object.Type: ApplicationFiled: February 9, 2010Publication date: December 15, 2011Applicant: BAE SYSTEMS plcInventors: Andrew David Wescott, Benjamin Richard Moreland, Jagjit Sidhu
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Publication number: 20080110196Abstract: A coolant delivery device (100) comprises a coolant outlet (124) and an exhaust (140, 160). The coolant outlet (124) is contained within a housing (150) that has an opening provided with sealing means (180), to which opening the coolant outlet (124) is arranged to direct a coolant. In use of the device, coolant is delivered to a surface to be cooled, and the coolant vaporises at the surface so as to produce coolant gas. Since the sealing means (180), in use of the device, form a seal between the housing (150) and the surface, the coolant gas is constrained to escape the device through the exhaust (140, 160), and does not disturb or disrupt the ambient environment. The device is particularly useful for applying thermal tensioning to welds through the delivery of a cryogenic spray to a weld line.Type: ApplicationFiled: December 15, 2006Publication date: May 15, 2008Applicant: BAE SYSTEMS plcInventors: Stephen Arthur Morgan, Andrew David Wescott, Peter Michael Devall, Stewart Wynn Williams