[1]陆鹏,赵亚楠,张艳秋,等.基于不同减薄量的镍钛合金管热旋压成形分析[J].应用科技,2013,40(01):1-7.[doi:10.3969/j.issn.1009-671X.201301015]
 LU Peng,ZHAO Yanan,ZHANG Yanqiu,et al.Deformation analysis of hot spinning of NiTi alloy tube based on different wall thickness reduction[J].Applied science and technology,2013,40(01):1-7.[doi:10.3969/j.issn.1009-671X.201301015]
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基于不同减薄量的镍钛合金管热旋压成形分析(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第40卷
期数:
2013年01期
页码:
1-7
栏目:
机电工程
出版日期:
2013-02-05

文章信息/Info

Title:
Deformation analysis of hot spinning of NiTi alloy tube based on different wall thickness reduction
文章编号:
1009-671X(2013)01-0001-07
作者:
陆鹏赵亚楠张艳秋江树勇李春峰
1. 哈尔滨飞机工业集团 工程技术部, 黑龙江 哈尔滨150060 2. 哈尔滨工程大学 工程训练中心, 黑龙江 哈尔滨150001 3. 哈尔滨工业大学 材料科学与工程学院, 黑龙江 哈尔滨150001
Author(s):
LU Peng ZHAO Yanan ZHANG Yanqiu JIANG Shuyong LI Chunfeng
1. Engineering Technology Department, Harbin Aircraft Industry Group Co., Ltd., Harbin 150060, China 2. Industrial Training Centre, Harbin Engineering University, Harbin 150001, China 3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
关键词:
镍钛合金有限元法滚珠旋压热旋压减薄量成形分析
Keywords:
NiTi alloy finite element method ball spinning hot spinning wall thickness reduction deformation analysis
分类号:
TG306
DOI:
10.3969/j.issn.1009-671X.201301015
文献标志码:
A
摘要:
为探索镍钛形状记忆合金管热旋压成形规律,采用有限元法进行了镍钛形状记忆合金管滚珠热旋压成形模拟,获得了镍钛合金管坯在不同壁厚减薄量下的温度场、应力场和应变场,并进行了旋压载荷的预测.模拟结果表明,热旋压成形时管坯及芯模和滚珠与管坯接触部位的温度都有不同程度的上升,并且随着壁厚减薄量的增加,管坯、芯模和滚珠的最高温度均呈上升趋势. 管坯应力沿管坯周向差别较大,而应变则在管坯壁厚方向上变化较大,外层金属较内层金属更易发生塑性变形. 随着减薄量的增加,各方向的旋压载荷均明显增大,轴向载荷远远小于径向和切向载荷.
Abstract:
In order to investigate deformation laws of the hot ball spinning of nickel-titanium shape memory alloy (NiTi SMA) tube, the finite element method (FEM) was used to simulate hot ball spinning of NiTi SMA tube. The temperature field, the stress field and strain field of NiTi pipe under different wall thickness reductions were obtained, and the spinning loads are predicted as well. The simulation results showed that the temperature of the tube, the temperatures of the mandrel and the balls in the zones where they contact with the tube all increased to a varying degree, and all of the maximum temperatures of the tube, the mandrel and the balls increased with the increase in the wall thickness reduction. There is a great difference in the stress of the tube along the circumferential direction, while there is a great difference in the strain of the tube along the thickness direction; and the outer metal is easier to deform than the inner metal of the tube. The spinning load in each direction increased obviously with the increase in the wall thickness reduction, and the load in axial direction is far less than the loads in radial direction and tangential direction.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金资助项目(51071056)
更新日期/Last Update: 2013-03-21