Investigation of the forming pressure and formability of metal foil by laser-driven multi-layered flyer

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• 作者：Xiao Wang ; Yaoqiang Yuan ; Zongbao Shen ; Chunxing Gu ; Qiang Zhang ; Huixia Liu
• 关键词：Multi-layered flyer ; Pressure measurement ; Micro-forming
• 刊名：Optics and Laser Technology
• 出版年：June, 2014
• 年：2014
• 卷：58
• 期：Complete
• 页码：151-160
• 全文大小：9878 K

文摘

Metal foil forming by laser-driven flyer (LDF) is a new micro-forming technology. The performance of the flyer is one of the main factors affecting the forming quality of workpiece. Considering the features of this technology, this paper presents a novel multi-layered flyer. Via magnetron sputtering, the absorption layer (titanium) and the ablation layer (aluminum) are produced on the confining medium. The impactor layer is manufactured by special cutting (a micro-punching method) and adhered to the center of the ablation layer by a gluing method. A pressure measurement system is conducted to measure the shockwave forming pressure of the laser-driven flyer, and a series of forming experiments are carried out to investigate the forming ability of the multi-layered flyer. Experimental results show that the multi-layered flyer can enhance the laser coupling efficiency to the flyer and achieve higher forming pressure than the single-layered flyer. Especially, the multi-layered flyer with the nonmetallic impactor layer of 100 碌m polyurethane rubber has good forming quality in the laser-driven flyer micro-forming (LDF碌F).