Modeling of Piercing Based on DEFORM-3D and the Ensemble OSC-PLS-ELM Method

摘要: The seamless tube, being widely used in the automobile, aviation, petroleum, chemical, building, boiler, and military industries, is called “blood vessel of industry.” demands for high-quality tubes are increasing continuously. Piercing first deformation process tube production has great influence on quality product. This paper takes Diescher piercer as object study builds DEFORM finite-element model piercing process. can substitute practical serve a simulation platform be optimization parameters prediction quality, it also greatly reduces debugging time cost. Therefore, theoretical significance value use. Finally, by combining with ensemble OSC-PLS-ELM mathematical model, we build hybrid which further increases precision forecast. method advantages both PLS ELM, i.e., characteristics robustness feature extraction quick nonlinear processing capability ELM.