| CPC B29C 64/393 (2017.08) [B29C 64/245 (2017.08); B29C 64/273 (2017.08)] | 20 Claims |
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1. A method of stress relief in forming a product by additive manufacturing, the method comprising:
determining, prior to manufacturing the product, stress relief profile parameters of an ultrasonic input based on physical properties of the product, including resonant frequencies of the product and a material from which the product is manufactured;
adding successive layers of the material to build the product;
adding energy to incorporate the material of each layer into the product;
accessing, by a processor from a storage device, the stress relief profile parameters for each layer;
determining, by the processor and based on the stress relief profile parameters, whether at an individual layer of the successive layers during the build of the product, stress relief is required;
determining, by the processor and based on the stress relief profile parameters and sensor input on the product being built, a frequency and a power level for the stress relief at the individual layer; and
applying, by an ultrasonic transducer, the ultrasonic input with the frequency and the power level to relieve stress as the product is built up.
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