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Study in dimension precision of micro straight thin wall with Ti-6Al-4V titanium alloy under mesoscale

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Abstract

Deflection problems are important causes of deterioration to the dimensional precision of machining micro thin-walled components. Under mesoscale, the deflection of the cutting tool and micro thin-walled workpiece model is established based on the Euler-Bernoulli cantilever beam theory. Then a novel average thickness prediction model of micro straight thin wall is set up considering the runout, cutting tool, and workpiece deflection. Afterwards, based on experimental data, the model is modified by introducing a scale factor K. This modified model has been calibrated and validated with Ti-6Al-4V titanium alloy, and it can provide very accurate prediction results for the micro straight thin wall at average thickness. In addition, the law of micro thin wall milling forces is also studied. In the end, the effect of different micro straight thin-walled stiffness on micro thin-walled dimensional accuracy is analyzed. The study found that for the thickness of micro straight thin walls, 100 μm is an inflection point to distinguish dimension precision between macroscale and mesoscale.

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Authors and Affiliations

  1. School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China

    Jie Yi, Junfeng Xiang & Zhao Wang

  2. Key Laboratory of Fundamental Science for Advanced Machining, Beijing Institute of Technology, Beijing, 100081, China

    Xibin Wang, Li Jiao & Pei Yan

  3. School of Xu Teli, Beijing Institute of Technology, Beijing, 100081, China

    Mingxin Li

Authors
  1. Jie Yi
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  2. Xibin Wang
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  3. Li Jiao
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  4. Mingxin Li
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  5. Junfeng Xiang
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  6. Pei Yan
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  7. Zhao Wang
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Correspondence to Li Jiao.

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Yi, J., Wang, X., Jiao, L. et al. Study in dimension precision of micro straight thin wall with Ti-6Al-4V titanium alloy under mesoscale. Int J Adv Manuf Technol 91, 4371–4381 (2017). https://doi.org/10.1007/s00170-017-0072-0

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  • DOI: https://doi.org/10.1007/s00170-017-0072-0

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