METHOD AND DEVICE FOR ADDITIVELY MANUFACTURING AT LEAST A PORTION OF A COMPONENT
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United States of America Patent
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May 22, 2017
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May 25, 2016
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Abstract
A method for additively manufacturing at least a portion of a component, in particular a component of a turbomachine. The method includes the following steps: a) depositing at least one powder layer of a component material in powder form layer by layer onto a component platform in the region of a buildup and joining zone; b) locally solidifying the powder layer by selectively irradiating the same using at least one high-energy beam in the region of the buildup and joining zone, forming a component layer; c) lowering the component platform by a predefined layer thickness; and d) repeating steps a) through c) until completion of the component portion or of the component. At least one contour portion of at least one component layer is irradiated in a step b1) at least once by at least one high-energy beam in a way that allows the solidified powder layer to be locally heated, but not melted, and, in a subsequent step b2), irradiated by at least one high-energy beam in a way that allows the solidified powder layer-to be locally melted in the region of the contour portion. In addition, a device for implementing such a method.
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