|
摘要：
|
|
以冷挤压十字轴为例,通过合理的锻件分割办法,以锻件的1/4为研究对象,把浮动凹模闭塞挤压的总压力看作单个小轴近似的正挤压力、坯料与凹模侧壁的摩擦力以及浮动凹模的合模力三者之和,由此提出了一种闭塞径向挤压力的计算方法。将此计算结果与Deform-3D数值模拟结果对比后,又分别以三叉轴与两叉轴的几种锻件为例对该计算方法进行验证,证明了该计算方法的科学性。并在上述验证比对的基础上对该计算方法提出了一定的修正办法,进一步减小了误差。
|
|
Basic on the analysis of cross-axle,a radial extrusion force calculation method was proposed.Through the analysis of a quarter of forgings,the total pressure of floating die closing extrusion was similarly counted as the sum of single axle proximate force of extrusion,friction force of work piece and bottom die and closing-die force of the floating die.After comparing the results with Deform-3D numerical simulation,the method was verified through forgings with two or three shaft and it was proved cientific.On the basis of the comparison,an amendment was further proposed aim at this method and error was reduced.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]刘元文,李明典.非对称径向挤压力的分析[J].金属成形工艺,1990,(2):39-43.
[2]陈立军,董必占.十字轴径向挤压技术及应用装备[J].装备维修技术,1999,(2,3):146-148.
[3]左旭,吴公明,阮雪榆.径向挤压的金属流动分析[J].锻压技术,1996,21(5):13-17.
[4]洪慎章.冷挤压实用技术[M].北京:机械工业出版社,2004.
[5]宋立彬.浮动模在两端对称类零件成形工艺中的应用[J].锻压机械,2000,(4):39-40.
[6]俞汉清,陈金德.金属塑性成形原理[M].北京:机械工业出版社,1999.
[7]赵德颖,孙慧学,苏升贵.数值模拟在轿车转向节闭塞挤压成形中的应用[J].热加工工艺,2007,36(13):74-77.
[8]梁继才,付沛福,黄良驹,等.闭塞模锻液压模架的研制[J].吉林工业大学自然科学学报,2001,31(2):17-21.
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
