Chengtong Tang

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Springback is one of the most important factors that affect the forming quality of tube bending. In this paper, the numerical simulation method was adopted to research on space shape of multi-bends metal tubes after springback. Based on the processing requirements, the springback and elongation of each bend was predicted through finite element simulation.(More)
According to the complex forming mechanisms, high forming accuracy, and multi-parameters in the bending process of metal tube parts used in rockets and aircraft engines, the parametric FE model for dynamics analysis, forming quality forecast model based on ANN, and process parameters optimization model based on GA were established. A NC tube bending quality(More)
A new kind of scheduling method for the complexity cooperation constrains is build to solve the cooperation problem of hierarchical kit and assembling pull in job shop and assembling production. Aiming to solve this problem, the methods are proposed to support the scheduling progress. The virtual kit process is adopted for assembling scheduling. The job(More)
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