METHOD FOR GENERATION OF STEEL PIPE OVALITY PREDICTION MODEL, STEEL PIPE OVALITY PREDICTION METHOD, STEEL PIPE OVALITY CONTROL METHOD, STEEL PIPE MANUFACTURING METHOD AND DEVICE FOR STEEL PIPE OVALITY PREDICTION Russian patent published in 2023 - IPC B21D5/01 B21D39/20 G05B23/02 G06N20/00 

FIELD: pressure treatment.

SUBSTANCE: invention can be used in the manufacture of steel pipes. Pipe manufacturing includes a steel sheet bending step, a welding gap reduction step, a welding step, and a pipe expansion step. The method for generating a pipe out-of-roundness prediction model includes performing a numerical operation having a set of operating conditions data as an input and an out-of-roundness of a steel pipe after the expansion step as an output. The operation is performed multiple times with varying sets of operating conditions. As a result, many sets of ovality data of the steel pipe after the expansion step are generated offline as training data. An ovality prediction model is generated, having a set of operating conditions data as input data and the ovality of the steel pipe after the expansion stage as output data. Model generation is performed offline using machine learning using training datasets.

EFFECT: it is possible to obtain a steel pipe with the required ovality.

12 cl, 17 dwg, 1 tbl, 3 ex