Chinese Journal of Lasers, Volume. 41, Issue 7, 703011(2014)
Experimental Investigation on Warm Micro-Forming by Laser-Driven Flyer
In this paper, the laser-driven flyer warm micro-forming method is proposed. Warm forming experiments are carried out using YdYAG laser with wavelength of 1064 nm and 3D morphology of formed T2 copper parts are observed. The influence of temperature (25 ℃, 100 ℃, 150 ℃, 200 ℃) and laser energy (1020, 1380, 1690, 1900 mJ) on the forming depth are analyzed. Hardness variation of the formed parts in forming regions is studied using nanoindentation and the forming mechanism is preliminary analyzed. It is found that better comprehensive performance during the plastic deformation is obtained by the laser-driven flyer warm micro-forming method: not only warm formability can be improved but also the hardness can be improved properly in forming regions. It is concluded that the laser-driven flyer warm micro-forming results from the competitive effects of both the laser shock peening mechanism and temperature soften mechanism.
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Liu Huixia, Zhang Qiang, Gu Chunxing, Shen Zongbao, Ma Youjuan, Gu Yuxuan, Wang Xiao. Experimental Investigation on Warm Micro-Forming by Laser-Driven Flyer[J]. Chinese Journal of Lasers, 2014, 41(7): 703011
Category: laser manufacturing
Received: Dec. 30, 2013
Accepted: --
Published Online: May. 14, 2014
The Author Email: Qiang Zhang (zhj1310@qq.com)