|
摘要：
|
|
介绍了基于离散点逐个调形原理的新型高效旋压成形工艺的原理,在研制出的旋压成形装置上进行了碟形件的成形实验,研究了成形辊加载方式对板材成形的影响,分析了蝶形件成形过程中起皱和减薄原因。结果表明,两种加载顺序蝶形件都有减薄现象出现,但是由中心向边缘的成形顺序的减薄率略低于由边缘向中心成形实验件的减薄率,着重分析了厚度为2 mm板材的旋压成形件减薄规律,为较厚板材蝶形件的加工奠定基础。
|
|
Principle of novel spinning of the discrete points controllable flexible roller was introduced briefly,the concave disk parts were formed by the novel spinning device and the loading model of sheet metal coming from the flexible roller was studied.The wrinkle and thinning were analyzed base on the procedure.The results show that thinning appears in two loading modes of concave disk,but the thinning from the centre to the side is less than that from the side to the centre.The thinning of the thickness with 2 mm was mainly studied,which lays a foundation for forming the disk with the thicker sheet metal.
|
|
基金项目：
|
|
国家自然科学基金资助项目(50905072);;
吉林省重大科研项目(20075005);;
国家863项目(2009AA04Z117)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]赵云豪.旋压技术现状[J].锻压技术,2005,30(5):95-97,100.
[2]赵腾伦,黄建峰,张清泉.筒形件反旋成形有限元数值模拟[J].锻压技术,2008,33(1):60-65.
[3]Hu Z Q,Li M Z,Cai Z Y,et al.Continuous flexible formingof three-dimensional surface parts using bendable rollers[J].Materials Science and Engineering A,2009,499:234-237.
[4]李明哲,胡志清,蔡中义,等.自由曲面工件多点连续成形方法[J].机械工程学报,2007,12(23):155-159.
[5]李亚非,陈辉.薄壁铝合金锥形件旋压过程的缺陷分析[J].锻压技术,2008,33(1):56-59.
[6]徐文臣,单德彬,陈宇,等.钛合金薄壁筒形件热旋成形技术研究[J].锻压技术,2008,33(3):56-59.
[7]张士宏,吴江.薄壁不锈钢管滚珠旋压成形工艺研究[J].锻压技术,2009,34(1):60-64.
[8]胡成亮,赵震,尹冠人.薄壁管旋转锻造3D数值模拟[J].锻压技术,2009,34(3):13-17.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
