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Numerical simulation of cold drawing of multi-rifled seamless steel tubes

机译：多层螺纹无缝钢管冷拔的数值模拟

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摘要

Multi-rifled precision seamless steel tubes are produced by cold drawing technology, utilizing multiple drawing sequences with intermediate heat treatment. In this paper, numerical simulation of multi-rifled tube drawing is compared with the experiment regarding the dimensions of grooves on the inner surface of the tube. For numerical simulation, DEFORM-3D software was utilized. The numerical model considered drawing of a hollow feedstock with dimensions 0 36 mm x 8 mm into the multi-rifled tube with dimensions φ 28.6 mm × 6.3 mm. The analysed numerical results turned to be consistent with the dimensions of grooves obtained experimentally and measured by optical 3D scanning. Based on the validated model, further optimization of various technological parameters can be made, providing an effective method for enhancing product quality and lowering production costs.
机译：通过冷拔技术生产多步精密无缝钢管，该工艺利用多个拉伸顺序和中间热处理。在本文中，关于管子内表面上的沟槽尺寸的实验，将多次螺纹管拉伸的数值模拟与实验进行了比较。为了进行数值模拟，使用了DEFORM-3D软件。数值模型考虑了将尺寸为0 36 mm x 8 mm的空心原料抽入尺寸为φ28.6 mm×6.3 mm的复式管中。分析的数值结果与实验获得并通过光学3D扫描测量的凹槽尺寸一致。基于验证的模型，可以进一步优化各种技术参数，从而为提高产品质量和降低生产成本提供有效的方法。

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