利用有限元计算方法对管材弯曲成形过程进行了模拟分析，并与实验结果进行了比较。
FEM has been used to simulate and analyze the forming process of rotary-draw pipe bending.
通过对管材弯曲成形过程的数值模拟方法的研究，对管材成型产品的设计和新产品的开发具有重要的意义。
Through the research of the simulation method of pipe bend forming in pipe-bender, it have important purpose for design and development of new products of pipe forming.
管材与不同部位模具间隙是影响薄壁管数控弯曲过程成形极限和成形质量的重要因素。
Clearance between tube and various dies is of great importance to influence forming limit and quality during thin-walled nc bending process.
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