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Scan pattern, stress and mechanical strength of laser directly sintered ceramics

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Abstract

A finite element model was developed to simulate the influence of laser scan patterns (laser jump patterns, ratio of length to width and laser scan angle) on the temperature and stress distributions in the process of laser direct sintering ceramics. The effects of laser scan patterns on the stresses in the laser directly sintered ceramic samples were investigated by simulation. Different ceramic samples were prepared by the laser sintering process for the four-point bending strength measurement. The simulation results consist with the experimental ones. The results in the present research can be used to optimize process route for the laser direct sintering process and provide a guidance for selecting the laser processes parameters for high mechanical strength ceramic components.

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Authors and Affiliations

  1. State Key Laboratory of Manufacturing System Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

    Xiaoyong Tian & Dichen Li

  2. Department for Engineering Ceramics, Clausthal University of Technology, Clausthal-Zellerfeld, 38678, Germany

    Bo Sun & Jürgen G. Heinrich

Authors
  1. Xiaoyong Tian
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  2. Bo Sun
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  3. Jürgen G. Heinrich
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  4. Dichen Li
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Correspondence to Xiaoyong Tian.

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Tian, X., Sun, B., Heinrich, J.G. et al. Scan pattern, stress and mechanical strength of laser directly sintered ceramics. Int J Adv Manuf Technol 64, 239–246 (2013). https://doi.org/10.1007/s00170-012-3994-6

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  • DOI: https://doi.org/10.1007/s00170-012-3994-6

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