Additive manufacturing process plan optimization based on predicted temperature variation
AssigneeGeneral Electric Company
InventorsYong Yang, Yibo Gao
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Abstract
A process plan optimization method for manufacturing a workpiece by adding a material in a plurality of layers is provided. The method includes: building a predicting model, the predicting model configured to predict a temperature variation of at least a portion of the workpiece; predicting an expected temperature variation of the portion of the workpiece to be manufactured during a given time period based on the predicting model and the process plan; and adjusting the process plan in response to the expected temperature variation of the portion failing to meet a preset condition, to make the expected temperature variation of the portion meet the preset condition.
Claims13
A method for optimizing a process plan for manufacturing a workpiece by adding a material in a plurality of layers, the method comprising:
- building a predicting model, the predicting model configured to predict a temperature variation of at least a portion of the workpiece;
- predicting an expected temperature variation of the portion of the workpiece to be manufactured during a given time period based on the predicting model and the process plan;
- adjusting the process plan in response to the expected temperature variation of the portion failing to meet a preset condition, to make the expected temperature variation of the portion meet the preset condition;
- detecting a realtime temperature of at least one unit portion of the workpiece at a given moment, wherein the workpiece comprises a plurality of unit portions respectively corresponding to a plurality of voxels of a digital representation of the workpiece;
- obtaining an expected temperature of the at least one unit portion at the given moment based at least in part on the predicting model and the process plan;
- and
- calibrating the predicting model based on the realtime temperature and the expected temperature.
An additive manufacturing method for manufacturing a workpiece, comprising:
- adding a material in a plurality of layers to form the workpiece;
- wherein adding each layer of the workpiece during a time period comprises:
- predicting an expected temperature variation of the layer to be manufactured during the time period, based on a process plan and a predicting model;
- if the expected temperature variation of the layer fails to meet a preset condition, adjusting the process plan to make the expected temperature variation meet the preset condition, and manufacturing the layer according to the adjusted process plan;
- if the expected temperature variation of the layer meets the preset condition, manufacturing the layer according to the process plan;
- detecting a realtime temperature of at least one unit portion of the workpiece at a given moment, wherein the workpiece comprises a plurality of unit portions respectively corresponding to a plurality of voxels of a digital representation of the workpiece;
- obtaining an expected temperature of the at least one unit portion at the given moment based at least in part on the predicting model and the process plan;
- and
- calibrating the predicting model based on the realtime temperature and the expected temperature.
Dependencies are inferred from the claim text.