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AssigneeRenishaw PLC
InventorsCeri BROWN, Mathieu BROCHU, Mohammad Attarian SHANDIZ, Amit KUMAR
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A method of determining instructions to be executed by a powder bed fusion apparatus, in which an object is built in a layer-by-layer manner by selectively irradiating regions of successively formed powder layers with an energy beam. The method includes determining an exposure parameter for each location within a layer to be irradiated with the energy beam from a primary exposure parameter, the exposure parameters varying with location. An amount each exposure parameter varies from the primary exposure parameter is determined, at least in part, from a geometric quantity of the object derived from the location of the irradiation.
A method of determining instructions to be executed by a powder bed fusion apparatus, in which an object is built in a layer-by-layer manner by selectively irradiating regions of successively formed powder layers with an energy beam, the method comprises determining an exposure parameter for each location within a layer to be irradiated with the energy beam from a primary exposure parameter, the exposure parameters varying with location, and an amount each exposure parameter varies from the primary exposure parameter is determined, at least in part, from a geometric quantity of the object derived from the location of the irradiation.
A powder bed fusion method in which an object is built in a layer-by-layer manner by selectively irradiating areas of successively formed powder layers with an energy beam, the method comprising irradiating a layer with the energy beam in accordance with a set of exposure parameters, the exposure parameters of the set varying with location of irradiation, and each exposure parameter for each location is determined from a primary exposure parameter, wherein an amount each exposure parameter varies from the primary exposure parameter is determined, at least in part, from a geometric quantity of the object derived from a location of the irradiation.
A powder bed fusion method in which an object is built in a layer-by-layer manner by selectively irradiating regions of successively formed powder layers with an energy beam, the method comprising irradiating a layer with the energy beam in accordance with a set of exposure parameters, wherein the exposure parameters of the set vary gradually with changes in thickness of solidified material underlying the locations of irradiation.
A powder bed fusion method in which an object is built in a layer-by-layer manner by selectively irradiating regions of successively formed powder layers with an energy beam, the method comprising irradiating a layer with the energy beam such that a radiant energy delivered to the powder by the energy beam at different locations within the region changes gradually with changes in thickness of solidified material underlying the different locations of irradiation.
Dependencies are inferred from the claim text.