QStE700TM型高强度钢方矩管滚弯成形试验

发布时间：2018-03-19 11:48

本文选题：高强度钢　切入点：方矩管　出处：《上海交通大学学报》2015年10期 　论文类型：期刊论文

【摘要】：对QStE700TM型高强度钢方矩管进行了滚弯成形试验,研究了滚弯时前辊间距、辊轮间隙和滚弯道次对于方矩管内壁凹陷的影响规律.结果表明,弯管的相对弯曲半径R/D难以表征不同规格方矩管的弯曲性能,而考虑截面尺寸的弯曲参数k与相对内壁凹陷深度具有较好的线性关系,可用于评价滚弯成形内壁的凹陷程度.当前辊间距增加时,弯管内壁的凹陷深度增大;当弯曲半径较大时,辊轮与方矩管之间的间隙对内壁凹陷的影响更加明显;多道次滚弯将导致更为严重的内壁凹陷.
[Abstract]:The roll bending test of QStE700TM type high strength steel rectangular tube, the roll before the roll gap, roll gap and roll curve for square tube wall effect of depression. The results showed that the relative bending bending radius R/D it is difficult to characterize the bending performance of different specifications of the square tube, and considering the section size of the curvature parameter K and relative wall sag depth has a good linear relationship, can be used to evaluate the degree of depression. The inner wall of the roll bending roller spacing increases, the depth of inner wall of elbow increases; when the bending radius is large, the gap between the roller and the inner wall of the square tube effect on depression is more obvious; multi roll will lead to more serious inner depression.

【作者单位】：上海交通大学上海市复杂薄板结构数字化制造重点试验室;上海宝山钢铁集团公司型钢有限公司;
【基金】：国家自然科学基金项目(51375308)资助
【分类号】：TG306

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