热滚压成型工艺参数对微流道回复率的影响  

Effect of rolling embossing process parameters on elastic recovery rate of polymeric micro-channel

作　　者：程军飞 陈兴[1] 张坤[1] CHENG Jun-fei;CHEN Xing;ZHANG Kun(Faculty of Mechanical Engineering ＆ Mechanics, Ningbo University, Ningbo 315211, China)

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2018年第3期33-39,共7页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：华中科技大学材料成型与模具技术国家重点实验室开放基金(P2016-21)

摘　　要：为研究热滚压成型工艺参数对微流道成型弹性回复的影响,基于Maxwell模型建立了微流道截面弹性回复率与各工艺参数之间函数关系的分析模型,并利用非线性有限元仿真软件ABAQUS对PMMA、PVC、PC非结晶材料的热成型进行有限元模拟,系统分析了温度、预压紧量及滚动速度对弹性回复率的影响.结果显示,当增加温度和减小预压紧量、滚动速度时,可以有效地减小微流道截面弹性回复率.To study the effect of hot roll-press process parameters on the forming of micro-channel, the analytic model based on the generalized Maxwell model to describe the relationship between the elastic recovery rate and the process parameters of the micro-channel is established, and the nonlinear finite element simulation software ABAQUS is employed to simulate roll-press forming of micro-channel. The simulated results show that the elastic recovery rate of micro-channel cross-section decreases with both the increase of the temperature and the decrease of the preloading height and the rolling speed.

关 键 词：滚压成型 有限元 分析模型 弹性回复率 

分 类 号：TH145.42[一般工业技术—材料科学与工程]