Finite Element Simulation of Tube Stretch-Reducing Wall Thickness Cross-section with Round Passes System
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摘要: 通過對某鋼管廠從德國引進的152.5BR圓孔型系統的主變形單機架軋制過程模擬,結果為:在圓周方向上管子的等效塑性應變分布不均勻,存在著一定的附加變形,在輥縫位置處的等效塑性應變最大;經減徑后管子沿圓周方向的壁厚分布不均勻,在輥縫位置處的壁厚為最大值;經疊加后產生內六方趨勢.實際生產軋制試驗驗證了有限元模擬結果的正確性.Abstract: On the base of finite element simulation for one stand of 152.5BR passes system in stretchreducing mill, the distribution of equivalent plastic strain and tube wall thickness along the section is uneven. The position of maximum is located at the gap of roll. After changing the position at gap and root of roll and adding up, it results in polygonization of the wall thickness. Rolling tests for 152.5BR passes systems validate the result of finite element simulation.
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Key words:
- stretch-reducing /
- FEM /
- tube rolling simulation /
- tube wall thickness
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