CHARGED PARTICLE BEAM STEERING ARRANGEMENT

A method of forming a product using additive layer manufacture is provided. The method comprises forming the product as a series of layers, each layer being formed by fusing powder deposited as a powder bed by scanning the powder bed using a charged particle beam to form a desired layer shape. For e...

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Bibliographic Details
Main Authors MCCLELLAND, Andrew, LAIDLER, Ian, CROSLAND, Nigel, HOYLE, Phil
Format Patent
LanguageEnglish
Published 15.08.2019
Subjects
BASIC ELECTRIC ELEMENTS
CASTING
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Summary:A method of forming a product using additive layer manufacture is provided. The method comprises forming the product as a series of layers, each layer being formed by fusing powder deposited as a powder bed by scanning the powder bed using a charged particle beam to form a desired layer shape. For each layer, the powder is fused by melting successive areas of the powder bed by scanning the charged particle beam using a combination of a relatively long-range deflector and a relatively short-range deflector, wherein the relatively long-range deflector deflects the charged particle beam over a larger deflection angle than the short-range deflector. Also provided are a corresponding charged particle optical assembly, and an additive layer manufacturing apparatus.
Bibliography:Application Number: US201716342859