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Effects of inclination angles on geometrical features of machined surface in five-axis milling

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Abstract

With the development of manufacturing technology, five-axis milling has been one of the most important solution strategies in machining field. To deepen the understanding of multi-axis processing and improve the application level of the technology, the current work was carried out. This paper investigated the effects of tilt and lead angle on the scallop height, surface roughness, surface topography, and surface damages in five-axis ball-end milling process. Both geometrical analysis and experiment research are conducted to investigate the scallop height after five-axis milling, and variation of the surface roughness and surface topography with tool inclination angle obtained from the experiments was analyzed. Surface damages under the different inclination angles were also observed and analyzed with optical profiler. Several conclusions are made as follows. The inclination angles of the ball-end mill have no effect on the scallop height when only the spherical part of the cutter participates in the cutting process according to the geometrical analysis. Surface roughness with regard to tilt angles presents symmetrical characteristic around 0°. Surface texture feature, especially the texture direction, is closely related with the tool posture. The surface concave pits, convex marks, microscopic cracks, and spot corrosions are mainly the damage forms of the machined surface. More surface blemishes appeared when small inclination angles are adopted in cutting. As a result, the recommendatory inclination angle values for inclination angle are proposed. A better understanding of the five-axis machining process would be given by the detailed analysis of generation reason of the machined surface features, and the results could provide support for process parameter optimization.

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Authors and Affiliations

  1. Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE, School of Mechanical Engineering, Shandong University, Jinan, 250061, China

    Xiaoxiao Chen, Jun Zhao, Yongwang Dong, Shiguo Han, Anhai Li & Dong Wang

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  1. Xiaoxiao Chen
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  2. Jun Zhao
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  3. Yongwang Dong
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  4. Shiguo Han
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  5. Anhai Li
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  6. Dong Wang
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Correspondence to Jun Zhao.

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Chen, X., Zhao, J., Dong, Y. et al. Effects of inclination angles on geometrical features of machined surface in five-axis milling. Int J Adv Manuf Technol 65, 1721–1733 (2013). https://doi.org/10.1007/s00170-012-4293-y

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  • DOI: https://doi.org/10.1007/s00170-012-4293-y

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