Conduct process experimental research on the precision vector bending requirements of finned tubes in aerospace thermal control products.This paper designs a mold for CNC bending of finned tubes,and conducts experimental analysis on issues such as springback compensation and extension compensation during the forming process of finned tubes.A mathematical model was established to fit the experiment data,forming a calculation formula for precise bending process compensation of finned tubes.The mathematical model was used for bending experiments on typical structures of finned tubes,and high forming accuracy was achieved.The improvement of the forming accuracy of finned tubes directly supports the design of longer single tube for thermal control products under certain spatial constraints,which has a positive significance in reducing the number of weld seams and improving product reliability.
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