激光冲击铜箔飞片及其复合成形研究  

Research on Laser Shock Induced Composite Forming of Copper Foil Flyer

作　　者：周建忠[1] 高彬[1] 黄舒[1] 刘会霞[1] 陈寒松[1] 杨晶[1] 左立党[1] 安中伟[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《中国激光》2012年第7期108-113,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金(51175235);江苏省自然科学基金(BK2009219);江苏省高校自然科学重大基础研究项目(08KJA460002);高等学校博士学科点专项科研基金(200802990004);江苏省优势学科建设项目(2011)资助课题

摘　　要：提出了一种激光冲击形成飞片,进而驱动飞片直接成形工件的复合工艺。结合剪切模具,使用波长1064nm的Nd:YAG平顶型短脉冲激光束,在厚度为50μm的铜箔上冲击得到高质量飞片,利用高速飞片直接在成形模具上进行塑性成形,获得了具有良好成形效果的胀形件和环形剪切件。对激光冲击驱动飞片复合成形的机理和性能进行了探讨,并对实验过程中出现的现象及问题进行了初步分析。作为一种高效冲压成形方法,不仅拓展了激光微冲击成形技术的应用领域,也为激光驱动飞片加载金属薄板成形微结构等研究提供了参考。A composite technology using laser driven flyer to form parts is proposed. Combined with the shearing mould, a top-hat Nd： YAG laser pulse （with 1064 nm wavelength） is used to shock copper foil with the thickness of 50μm for getting high-quality flyer. The bulging parts and the ring parts with good forming property are finally obtained by high-speed flyer by means of forming mould, The mechanism and performance of laser driven flyer forming technology are studied, furthermore, the phenomenon and problems in the experiments are explored. This composite technology not only expands the application field of laser micro-forming, but also provides reference value on the research of forming microstructure of metal sheet under laser driven flyer.

关 键 词：激光技术 飞片成形 激光冲击 复合成形 

分 类 号：TN249[电子电信—物理电子学]