摘要
纤维增强塑料材料由于其具有密度小、耐腐蚀性好、电磁绝缘性等特点,因此在航空航天及土木工程领域应用广泛。但是纤维增强塑料异形件用传统的工艺成型方法,存在成本较高、制造周期长等问题。引入磨料水射流切割技术,由于以水为加工高能束,因此被加工材料的切口光滑无烧蚀,还能提高加工效率,节约成本,环保安全。分析了高能射流的形成机制,建立了粒子对纤维增强塑料的冲蚀模型,材料破坏的演化模型并分析其去除机理,最后通过调节主要工艺参数(射流压力、进给速度、靶距、粒子尺寸),分析其对冲蚀性能的影响规律。成果可以提高磨料水射流加工新材料的加工质量和加工效率,具有重要的理论意义和使用价值。
Fiber reinforced plastics were widely used in the aerospace and civil engineering fields,because of their advantages of low density,good corrosion resistance and electromagnetic insulation.However,the conventional forming method of fiber reinforced plastics had the problem of high cost and long manufacturing cycle.Therefore,the abrasive water jet cutting technology was introduced.Because water was used as high energy cutting beam,the incision of the material to be processed was smooth without ablation,which could improve processing efficiency,save cost and protect environment.The formation mechanism of high energy jet and the erosion model of particle reinforced plastics were analyzed.The evolution model of material failure and its cutting mechanism were also established and fully discussed.Finally,the main process parameters(jet pressure,traverse speed,stand-off distance,particle size)were adjusted to analyze its influence on the erosion performance.The results show that the improvement of the processing quality and processing efficiency of new materials using abrasive water jet processing,which have important theoretical significance and using value.
作者
强争荣
缪小进
武美萍
宋磊
QIANG Zheng-rong;MIAO Xiao-jin;WU Mei-ping;SONG Lei(Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Mechanical Engineering Department of Jiangnan University,Wuxi 214122,China)
出处
《塑料工业》
CAS
CSCD
北大核心
2019年第7期140-144,5,共6页
China Plastics Industry
基金
国家自然科学基金资助项目(51575237)
创新型人才国际合作培养项目(201600090095)
关键词
磨料水射流
计算流体动力学
纤维增强塑料
冲蚀机理
Abrasive Water Jet
Computational Fluid Dynamics
Fiber Reinforced Plastics
Erosion Mechanism
作者简介
强争荣,男,1992年生,博士研究生,主要从事智能制造和系统设计与分析的研究;通信作者:武美萍.
