摘要
为了满足微型塑料件(PMC)的高效率和高质量成型加工,提出了基于CO2激光定位辐照的微型塑料件融化成型方法。采用有限元软件Comsol数值模拟激光辐照过程中的试样温度变化,研究试样二维和三维瞬态温度场及其分布特征,分析激光参数对温度变化的影响,探讨工艺参数对成型质量影响规律。数值模拟和实验结果表明,选择适当激光参数可以满足试样温度在整体融化范围,温度越高则成型精度越好,成型压力远低于传统的注塑和热压成型;采用定位辐照融化方式可以获得复制精度较好的成型件,表明微型塑料件的激光融化成型具有可行性和有效性。
In order to realize molding process of polymer micro component （PMC） with high efficiency and high precision, the molding method of PMC is presented based on CO2 laser positioning irradiation. The software Comsol is used in the numerical analysis of the temperature of samples, two-dimensional （2D） and three-dimensional （3D） transient temperature field and distribution of samples are researched, and the influence of laser parameters on temperature variation is analyzed. The effects of processing parameters on replication quality are investigated via the development of test device and experiment. The results show that the appropriate laser parameters can meet the overall sample melting, and the higher the temperature, the better the molding precision; molding pressure is much lower than these of traditional injection molding and thermoforming. It is demonstrated that the proposed process is a feasible and effective way to laser melting-molding PMC.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2015年第1期123-129,共7页
Chinese Journal of Lasers
基金
国家自然科学基金(51175236)
江苏省普通高校研究生科研创新计划资助项目(CXZZ11_0545)
江苏省'333工程'项目
江苏省常州市科技计划应用基础研究项目(CJ20140003)
关键词
激光技术
微型塑料件
融化成型
微结构
复制精度
laser technique
polymer micro component
melting-molding
microstructure
replication precision
