International Journal of CAD/CAM

Society for Computational Design and Engineering (한국CDE학회)
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Modeling Cutter Swept Angle at Cornering Cut

  • Chan, K.W. (Department of Mechanical Engineering, The University of Hong Kong) ;
  • Choy, H.S. (Department of Mechanical Engineering, The University of Hong Kong)
  • Published : 2003.12.31
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Abstract

When milling concave corners, cutter load increases momentarily and fluctuates severely due to concentration and uneven distribution of material stock. This abrupt change of cutter load produces undesirable machining results such as wavy machined surface and cutter breakage. An important factor for studying cutter load in 2.5D pocket milling is the instantaneous Radial Depth of Cut (RDC). However, previous work on RDC under different corner-cutting conditions is lacking. In this different corner shapes. In our work, we express RDC mathematically in terms of the instantaneous cutter engage angle which is defined as Cutter Swept Angle (CSA). An analytical approach for modeling CSA is explained. Finally, examples are shown to demonstrate that the proposed CSA modeling method can give an accurate prediction of cutter load pattern at cornering cut.

Keywords

References

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