Research on machining quality control in micro milling of low-rigidity characteristics

  • Shoufeng Gao
  • Li Jiao
  • Pei Yan
  • Siqin Pang
  • Zhenxin Peng
  • Xuechun Shi
  • Zhao Wang
  • Xibin Wang
ORIGINAL ARTICLE

Abstract

Micro cutting is widely used in the machining of micro components and micro features of conventional size components. During the micro cutting process, the manufactured components and characteristics usually belong to mesoscale, and the final geometric accuracy and surface quality are affected by many factors. In this paper, a series of micro milling tests based on heat-resistant stainless steel (12Cr18Ni9) are carried out to figure out the influence of different factors on machining quality of mesoscale low-rigidity characteristics. During the study, the small displacement torsors (SDT) theory are employed to characterize the perpendicularity tolerance of mesoscale surface. Optical microscopic measurement method is used to obtain SDT parameters, then the width of the tolerance zone is obtained; based on which, the effect of different factors on machining quality is systematically studied. In addition, the surface roughness and micro topography of the machined surface are also analyzed, and the phenomenon of surface deterioration caused by high-temperature chip is effectively controlled. Finally, a general method for ensuring the processing quality of mesoscale low-rigidity characteristics is proposed.

Keywords

Micro cutting Small displacement torsors (SDT) Mesoscale Size effect Processing quality 

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Copyright information

© Springer-Verlag London Ltd. 2017

Authors and Affiliations

  • Shoufeng Gao
    • 1
  • Li Jiao
    • 2
  • Pei Yan
    • 2
  • Siqin Pang
    • 2
  • Zhenxin Peng
    • 1
  • Xuechun Shi
    • 1
  • Zhao Wang
    • 1
  • Xibin Wang
    • 2
  1. 1.School of Mechanical EngineeringBeijing Institute of TechnologyBeijingChina
  2. 2.Key Laboratory of Fundamental Science for Advanced MachiningBeijing Institute of TechnologyBeijingChina

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