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Numerical Simulation of Inner Straight Flute Copper Tube Spinning-Broaching Forming

Shigang Wang, Fusheng Gao, Yueqiang Yu


Aiming to explain forming mechanism of copper pipe workpiece with inner straight groove via ball-rolling and broaching at different velocity, the copper pipe workpiece and straight die is modeled in ABAQUS. The whole simulation includes forming process, analysis of strain and stress. It is concluded that in the process of ball-rolling and broaching, the deformation of copper pipe workpiece is mainly the axial and teeth groove radial, with broaching increasing, the equivalent strain and stress enlarge gradually. Under the premise of keeping the quality of production, the maximum broaching velocity is 120mm/s, which will not lose steady and complete the whole operation successfully. As a result, the most important thing which supplies full basis for drawing speed in the actual processing.


Inner straight flute copper tube, ball-rolling, cylindrical workpiece, numerical simulation, finite element analysis.

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