Additive manufacturing power map to mitigate defects
AssigneeLawrence Livermore National Security, LLC
InventorsSaad A. Khairallah, Gabe Guss, Wayne E. King, Manyalibo Joseph Matthews
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Abstract
A laser powder bed fusion additive manufacturing system for producing a part by creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the part and using the power map to control the laser powder bed fusion additive manufacturing for producing the part. This includes an apparatus for producing a part including a powder bed, a laser that produces a laser beam, a proportional integral derivative controller that creates a power map that describes laser power requirements as the laser moves along a path, wherein the laser power requirements prevent defects in the part.
Claims11
A laser powder bed fusion additive manufacturing method for producing a product or part, comprising the steps of:
- creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the product or part, and
- using said power map to control the laser powder bed fusion additive manufacturing for producing the product or part.
A laser powder bed fusion additive manufacturing method for producing a product or part, comprising the steps of:
- creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the product or part, and
- using said power map for controlling the laser power through a computer model to predict laser power requirements to achieve melt pool characteristics that eliminated defects for producing the product or part.
A laser powder bed fusion additive manufacturing apparatus for producing a product or part, comprising:
- means for creating a power map that is an intelligent feed forward model to control the laser powder bed fusion additive manufacturing for producing the product or part, and
- means for using said power map to control the laser powder bed fusion additive manufacturing for producing the product or part.
Dependencies are inferred from the claim text.