原位冲压成型工艺参数对GFRTP黏度影响及优化研究

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (10): 55-59.

原位冲压成型工艺参数对GFRTP黏度影响及优化研究

王宇, 杨睿^*, 梁宜楠, 张一鸣

大连理工大学机械工程学院,大连116024

收稿日期:2020-04-01 出版日期:2020-10-28 发布日期:2020-10-28
通讯作者: 杨睿(1974-),男,博士,教授,主要从事复合材料等方面的研究,yangrui@dlut.edu.cn。
作者简介:王宇(1994-),男,硕士,主要从事热塑性复合材料方面的研究。
基金资助:
国家自然科学基金重大项目(51790172)

EFFECT OF IN-SITU STAMPING PROCESS PARAMETER ON GFRTP VISCOSITY AND PARAMETER OPTIMIZATION

WANG Yu, YANG Rui^*, LIANG Yi-nan, ZHANG Yi-ming

School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China

Received:2020-04-01 Online:2020-10-28 Published:2020-10-28

摘要/Abstract

摘要： 玻璃纤维增强热塑性复合材料(GFRTP)原位冲压成型过程中,冲头垂直冲压、剥离及GFRTP呈现粘流态时的高黏特性,导致预浸料与模具的黏附脱粘成为冲压工艺影响成型效果的重要因素。为研究重要工艺参数对热塑性预浸料黏度的影响并优化参数组合,采用设计与原位冲压工艺最类似的探针实验对其黏性进行了分析,通过定义最大脱粘力来表征黏性大小,利用控制变量及响应曲面法分析了重要工艺参数对制备过程中黏度的影响并最优化参数组合。结果表明,黏性随温度先增大后减小,随压力增大而增大,随保压时间先增大后减小,且工艺参数之间存在耦合作用等,为后续原位冲压工艺提供了理论指导。

关键词: 热塑性复合材料预浸料, 探针实验, 黏性, 工艺参数, 响应曲面法

Abstract: Because of the high viscosity properties of GFRTP and vertically stamping and debonding in the in-situ stamping process, the adheres and detach between the mold and prepreg becomes an very important factor for forming effect. In order to study the influence on viscosity under different paremeters and optimize the combination of the parameter, probe test was used to analyze the viscosity. To define the maximum debonding force to present viscosity, and analyze the influence of important process parameters on viscosity and obtain the optimal parameter combination using the control method and RSM, the results show that the viscosity increase first and then decrease with the increase of temperature, increase with the increase of pressure, increase first and then decrease or remains still with the increase of pressure time. And there is a strong coupling relationship between the process parameter. It provides a theoretical guidance for the subsequent in-situ stamping process.

Key words: thermoplatic composite prepreg, probe tese, viscosity, process parameter, RSM

中图分类号:

TB332

王宇, 杨睿, 梁宜楠, 张一鸣. 原位冲压成型工艺参数对GFRTP黏度影响及优化研究[J]. 复合材料科学与工程, 2020, 0(10): 55-59.

WANG Yu, YANG Rui, LIANG Yi-nan, ZHANG Yi-ming. EFFECT OF IN-SITU STAMPING PROCESS PARAMETER ON GFRTP VISCOSITY AND PARAMETER OPTIMIZATION[J]. Composites Science and Engineering, 2020, 0(10): 55-59.

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