System and method for predicting warping behavior in a product
AssigneeCoretech System Co., Ltd.
InventorsHsi-Hung Chang, Chih-Chung Hsu, Hsien-Sen Chiu, Chia-Hsiang Hsu
Life of this patent
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Abstract
A method for predicting warping behavior in a product involves: 1) acquiring experimental warping data from a specimen under predetermined molding conditions, 2) generating simulated warping data using a digital twin, 3) calculating strain/stress components of both experimental and simulated data, 4) performing regression analysis to establish conversion relationships between experimental and simulated strains in transverse/parallel directions, and 5) generating calibrated simulation predictions using the derived relationships.
Claims12
A system for predicting warping behavior in a product, comprising:
- an injection-molding apparatus configured to carry out a molding process of a product and monitor operating conditions during molding of the product;
- and a computer coupled with the injection-molding apparatus, and carrying a simulation software,
- wherein the simulation software is configured for, when being executed by the computer, simulating the molding conditions of the product according to the operating conditions of the injection-molding apparatus, predetermined molding conditions, and/or given molding conditions;
- wherein simulating the molding conditions comprises:
- acquiring, via the injection-molding apparatus, experiment warping behavior data of a specimen of the product;
- generating simulated warping behavior data of the specimen via the simulation software;
- determining an experimental strain and a characteristic strain from the experiment warping behavior data of the specimen of the product and the simulated warping behavior data of the specimen, respectively, in an in-processing state, of a principal coordinate system;
- deriving an experimental stress and a characteristic stress from the experimental strain and the characteristic strain, respectively, in the in-processing state;
- converting the experimental stress and the characteristic stress from the in-processing state to a fully-aligned orientation state to obtain orientation-calibrated stresses at a transverse direction and a parallel direction of a pseudo coordinate system;
- generating additional-simulated warping behavior data of the specimen under a given molding condition based on the conversion relationship derived from the orientation-calibrated stresses;
- and
- wherein the injection-molding apparatus is further configured to conduct an actual molding of the product according to the additional-simulated warping behavior data.
Dependencies are inferred from the claim text.