Iso-scallop trajectory generation for the 5-axis machining of an impeller

  • Authors:

  • Xubing Chen;Jinbo Wang;Youlun Xiong

  • Affiliations:

  • School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, P.R. China;School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan, P.R. China;State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, P.R. China

  • Venue:
  • ICIRA'11 Proceedings of the 4th international conference on Intelligent Robotics and Applications - Volume Part II
  • Year:
  • 2011

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Abstract

Iso-scallop trajectories, tool orientations and a tool swept volume for the 5-axis machining of an impeller have been developed in the paper. As the merits of ball end tools, the planning work has been done on the cutter location surface. Firstly, a boundary curve is selected as the master trajectory, and cutting intervals are calculated from the geodesic curvature on the blade surface to keep a constant scallop height. Secondly, tool orientation determinations are discussed to promise the trajectories interference-free. The determined tool orientations are starting from the trajectory point and pointing to a guide line located in the mid-plane between two neighbor blades. Finally, measurement results from a machining simulation and a produced tool swept volume are given to illustrate the feasibility and validity of the proposed method.