[1]刘斌,郑清娟,刘华.流线型挤出模曲面构造[J].华侨大学学报(自然科学版),2005,26(2):172-175.[doi:10.3969/j.issn.1000-5013.2005.02.016]
　Liu Bin,Zheng Qingjuan,Liu Hua.Surface Construction for the Streamlined Extrusion Die[J].Journal of Huaqiao University(Natural Science),2005,26(2):172-175.[doi:10.3969/j.issn.1000-5013.2005.02.016]
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流线型挤出模曲面构造()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第26卷
期数:
2005年第2期
页码:
172-175
栏目:
出版日期:
2005-04-20

文章信息/Info

Title:
Surface Construction for the Streamlined Extrusion Die
文章编号:
1000-5013(2005)02-0172-04
作者:
刘斌; 郑清娟; 刘华
华侨大学机电及自动化学院; 华侨大学机电及自动化学院 福建泉州362021; 福建泉州362021; 福建泉州362021
Author(s):
Liu Bin;  Zheng Qingjuan;  Liu Hua
College of Mechanical Engineering and Automation, Huaqiao University, 362021, Quanzhou, China
关键词:
流线型挤出模;  型值点;  参数化建模;  曲面
Keywords:
streamlined extrusion die;  offset points;  parameterized modeling;  surface
分类号:
TG376
DOI:
10.3969/j.issn.1000-5013.2005.02.016
文献标志码:
A
摘要:
根据塑料挤出的特点,在编程实现对型材截面轮廓凸凹性自动判断的基础上,采用射线法与比例间隔法相结合的方法,确定流道入口圆周上型值点的位置.以三次多项式作为流道模腔型曲线的数学模型,依据流线型要求给出的初始、边界条件,得出型曲线的数学方程.构建了挤出模流道的三维参数化曲面模型.有限元分析结果显示,该方法创建的流线型流道模型,其流动稳定性和平顺性都优于直线型流道.
Abstract:
Based on the characteristic of plastic extrusion, the convexity-concavity of sectional profile of section bar is automatically estimated by programming. By adopting method of ray tracing in combination with method of proportional spacing, the offset points on the circumference of channel inlet are located. Taking cubic polynomial as mathematical model of the skeleton curve of channel modular cavity and according to initial condition and boundary condition given to meet the requirement of streamline, the mathematic equations of skeleton curve are obtained. And then, a three-dimensional parameterized surface model is constructed for the channel of extruszon die. As shown by the result of finite element analysis, the streamlined channel model establishing by this method is better than linear type channel in stability and smoothness of its flow.

参考文献/References:

[1] 韩宝仁, 朱元吉, 冯连勋. 塑料异型材制造原理与技术 [M]. 北京:化学工业出版社, 2001.272-308.
[2] 申长雨. 塑料模具计算机辅助工程 [M]. 郑州:河南科学技术出版社, 1998.111-136.
[3] Chan G S H, Hon K K B. Integration of computing techniques for plastics extrusion die design [J]. Computer-Aided Engineering, 1990(4):37-42.doi:10.1049/cae.1990.0010.
[4] 刘耀中. 塑料异型材挤出模模头的参数化特征建模研究 [D]. 大连:大连理工大学, 2003.51-60.
[5] 刘斌. 塑料挤出流动数值分析及其模具结构设计优化研究 [D]. 大连:大连理工大学, 2003.23-41.

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备注/Memo

备注/Memo:
福建省青年科技创新基金资助项目(2004J035)
更新日期/Last Update: 2014-03-23