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US 12,454,006 B2Granted
Determining build parameters in additive manufacturing
AssigneePeridot Print LLC
InventorsMarc Garcia Grau, Michel Georges Encrenaz
Life of this patent
Estimating the term…
Abstract
A method is disclosed. The method involves establishing a number of times that a batch of build material has been processed as part of one or more additive manufacturing processes without forming part of a three-dimensional object formed during the one or more additive manufacturing processes. The method also involves determining, based on the established number of times, build parameters to be applied in respect of an additive manufacturing process to be performed using the batch of build material to generate a three-dimensional object.
Claims12
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.
10 more elements
A system comprising:
- a memory storing instructions;
- and
- a processor configured to execute the instructions to:
- receive 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;
- cause 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;
- determine 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;
- calculate, based on the determined difference, a variation to be applied to the object generation data to be used for generating the object again;
- determine 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,
- apply the sintering adjustment correction to the model for the object to generate a corrected model;
- and
- cause the additive-manufacturing apparatus to generate the object again in accordance with the correction model.
13 more elements
A non-transitory machine-readable medium storing instructions executable by a processor to:
- receive 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;
- cause 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;
- determine 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;
- calculate, based on the determined difference, a variation to be applied to the object generation data to be used for generating the object again;
- determine 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,
- apply the sintering adjustment correction to the model for the object to generate a corrected model;
- and
- cause the additive-manufacturing apparatus to generate the object again in accordance with the correction model.
10 more elements
Dependencies are inferred from the claim text.