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成形复杂盘件时辗压工具运动轨迹的研究
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英文标题：Experimental study on roller feed route of double-sided roll forming of disc parts with complex profile |
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作者：李彤 金泉林 刘晓飞 |
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单位：机械科学研究总院先进制造技术研究中心 |
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关键词：盘型件 加工轨迹 双面辗压成形 过渡尺寸 |
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分类号：TG306 |
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出版年,卷(期):页码：2008,33(5):76-81 |
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摘要：
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在辗压成形中,工具的加工轨迹和姿态决定了工件的最终形状和组织性能。为确定工具加工轨迹的一般设计方法,基于体积不变原理,建立了一个简化分析模型,当盘型件与毛坯尺寸确定以后,利用该模型可以对各辗压遍次的工件过渡尺寸以及盘型件的变形情况进行分析和预测。以某个盘型件的辗压成形为例,计算了辗压过程中辗压工具的进给数据,并据此进行了辗压试验,成形后的盘件尺寸与盘型件的设计尺寸基本吻合,证明了所给出的计算辗压工具进给的方法是可行的。
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During roll forming,the final shape,the microstructure and property of workpiece are depended on the roller feed route and its gesture.For the purpose of designing the roller feeding route of double-sided roll forming of disc parts with complex profile,a simplified model was set up for calculating workpiece geometric parameters in each forming step according to the principle of constant volume during plastic deformation.With this model,transition dimensions of work-piece and deformation state of disc parts in every rolling time could be analyzed and predicted,therefore,the data of the rollers feed was calculated for forming a disc part.With above data,a roll forming test for forming the disc part was carried out.The experimental results show that the rolled disc part shape is in agreement with that of the object part,which proves that the algorithm suggested here is feasible and can be used to compile software for rolling forming under numerical control.
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基金项目：
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国家自然科学基金资助项目(50475061)
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作者简介：
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参考文献：
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[1]金泉林,刘晓飞,张艳姝.盘形件辗压成形原理及其数值模拟[J].钢铁研究学报,2003,15(7):654-658.
[2]李彤,金泉林.盘型件双面辗压三维变形过程的数值模拟研究[J].锻压装备与制造技术,2006,41(2):87-90.
[3]李彤.盘型件双面辗压成形工艺研究[D].北京:机械科学研究院,2006.
[4]李彤,刘晓飞,金泉林.宽槽双面辗压实验研究[J].塑性工程学报,2007,14,(4):96-100.
[5]陈森灿.塑性理论的应用:金属压力加工工序的力学分析[D].北京:清华大学机械工程系,1982.
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