| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Characterizations of Stress and Strain Variation in Three-Dimensional Forming of Laser Micro-Manufacturing |
| ZHOU Ming, ZHAO Guo-Huan, HUANG Tao, DING Hua, CAI Lan |
| Photonic Manufacturing and Science Technology Center, Jiangsu University, Zhenjiang 212013 |
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| Cite this article: |
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ZHOU Ming, ZHAO Guo-Huan, HUANG Tao et al 2010 Chin. Phys. Lett. 27 024202 |
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Abstract A micro-manufacturing technology is presented to form three-dimensional metallic micro-structures directly. Micro grid array structures are replicated on a metallic foil surface, with high spatial resolution in micron levels. The numerical simulation results indicate that the material deformation process is characterized by an ultrahigh strain rate. With increasing pulse duration, the sample absorption strain energy increases, and the sample deformation degree enlarges. The stress state of the central point fluctuates between tensile stress and compression stress. The stress state of the angular point is altered from compressive stress to tensile stress due to geometry and loading conditions. The duration length of pulse stress has an effect on the stress state, as with the increase of pulse duration, fluctuation in the stress state decreases. Therefore, laser micro-manufacturing technology will be a potential laser micro forming method which is characterized by low cost and high efficiency.
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| Keywords:
42.62.Cf
81.20.Hy
83.50.Uv
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Received: 09 September 2009
Published: 08 February 2010
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| PACS: |
42.62.Cf
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(Industrial applications)
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81.20.Hy
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(Forming; molding, extrusion, etc.)
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83.50.Uv
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(Material processing (extension, molding, etc.))
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