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结合塑性铰的概念,用极值定理分析研究了空心件楔横轧的轧制力及各种工艺参量对压扁失稳的影响,从而确定空心件楔横轧压扁失稳的准则。
Combined with the concept of plastic hinges, the influence of rolling force and various process parameters on flattening instability of hollow cross wedge rolling was analyzed by the extreme value theorem, so as to determine the criterion of wedge rolling of hollow cross wedge rolling.