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Femtosecond laser additive manufacturing of iron and tungsten parts

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Abstract

For the first time, femtosecond laser additive manufacturing is demonstrated. Pure iron and tungsten powders, having very different melting temperature and mechanical properties, are used for the demonstration. Parts with various shapes, such as ring and cube, are fabricated. Micro-hardness and ultimate tensile strength are investigated for the fabricated samples. The results are also compared to the similar parts made by a continuous-wave laser. It is found that fs laser additive manufacturing can obtain better mechanical properties and fabricate materials that are not possible before.

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Authors and Affiliations

  1. PolarOnyx, Inc., 2526 Qume Drive, Suites 17 & 18, San Jose, CA, 95131, USA

    Bai Nie, Lihmei Yang, Huan Huang, Shuang Bai, Peng Wan & Jian Liu

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  1. Bai Nie
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  2. Lihmei Yang
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  3. Huan Huang
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  4. Shuang Bai
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  5. Peng Wan
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  6. Jian Liu
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Correspondence to Bai Nie.

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Nie, B., Yang, L., Huang, H. et al. Femtosecond laser additive manufacturing of iron and tungsten parts. Appl. Phys. A 119, 1075–1080 (2015). https://doi.org/10.1007/s00339-015-9070-y

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  • DOI: https://doi.org/10.1007/s00339-015-9070-y

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