飞机小半径导管中频压缩弯曲工艺研究

Study on Medium frequency heated Compression winding Technology for Aircraft Small radius Pipes

在系统分析小半径中频压缩弯管成形机理的基础上，推导出弯管最大壁厚减薄率和最小相对弯曲半径的计算公式，研究了附加弯矩对最大壁厚减薄／增厚率的影响，并指出了减小相对弯曲半径、提高弯管质量的主要途径。

Based on analysing the mechanism of forming of small radius bend pipes by the medium frequency heated compression winding technology, this paper derives the formulas for computing wall thickness reduction ratio and relative bend radius. The relationship between additional bending moment and wall thickness reduction/increase ratio is also studied, and the main approaches to reduce relative bend radius and improve pipe bending quality are pointed out in the paper.