| CPC B22F 10/85 (2021.01) [B22F 10/30 (2021.01); B22F 2203/05 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] | 12 Claims |
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1. A method comprising:
receiving, by a processor, a model for an object to be fabricated via an additive-manufacturing process in which:
on a layer-by-layer basis, build material powder is deposited and then binding agent is selectively applied onto the build material powder and cured to selectively bind the build material powder, to generate the object in green form;
the object in green form is decaked to remove the build material powder that was deposited but which is not part of the object in green form; and
the object in green form is sintered to harden the build material powder that remains, to generate the object in final form;
causing an additive-manufacturing apparatus to generate, the object using a batch of the build material powder that has been previously used during fabrication of other objects via the additive-manufacturing process but which were not part of the other objects;
determining a difference between a size of a dimension of the generated object and a size of a corresponding dimension as defined in object generation data;
calculating, based on the determined difference, a variation to be applied to the object generation data to be used for generating the object again;
determining, by the processor, a sintering adjustment correction based on the calculated variation, wherein
the sintering adjustment correction accounts for a size change in the other object last fabricated using the batch that results during sintering,
applying, by the processor, the sintering adjustment correction to the model for the object to generate a corrected model; and
causing, by the processor, the additive-manufacturing apparatus to generate the object again in accordance with the correction model.
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