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小直径厚壁管广泛应用于汽车备胎支架、汽车进气管和排气管等关键部件。回弹是影响弯曲件成形精度的主要因素之一,同时也是弯曲模具和弯曲工艺设计的关键问题之一。通过有限元软件Abaqus模拟了弯曲角度、弯曲半径、弯曲速度、壁厚对回弹的影响,得出了对回弹的影响曲线,并且做了相应的实验验证,这能为弯管机的工艺参数提供理论参考。
Small diameter thick-walled tube is widely used in automobile spare tire bracket, automobile intake pipe and exhaust pipe and other key components. Springback is one of the main factors affecting the forming precision of the bending part, and it is also one of the key problems in the bending mold and bending process design. The effect of bending angle, bending radius, bending velocity and wall thickness on springback was simulated by finite element software Abaqus, and the influence curve on springback was obtained, and the corresponding experimental verification was done, which can be used in the technology of bending machine Parameters provide a theoretical reference.