In multi-axis machining of dies and molds with complex sculptured surfaces, numerical control (NC) simulation/verification is a must for the avoidance of expensive rework and material waste. Despite the fact that NC simulation has been extensively used by industries for many years, efficient, accurate, and reliable view-independent simulation of multi-axis NC machining still remains a difficult challenge. This paper presents the use of adaptive voxel data structure in conjunction with the modeling of a universal cutter for the development of an efficient and reliable multi-axis (typically five-axis) simulation procedure. The octree-based voxel representation of the workpiece saves a significant amount of memory space without sacrificing the simulation accuracy. Rendering of the voxel-based model is view independent and does not suffer from any aliasing effect, due to the real-time triangulation of the boundary surfaces using an extended marching cube algorithm. Implicit algebraic equations are used to model the automatically programed tool geometry, which can represent a universal cutter with high precision. In addition, the proposed method allows users to perform error analysis and gouging detection by comparing the machined surfaces with the original computer-aided design (CAD) model. Illustration of the implementation and experimental results demonstrate that the proposed method is reliable, accurate, and highly efficient.
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June 2009
Research Papers
Efficient NC Simulation for Multi-Axis Solid Machining With a Universal APT Cutter
Hong-Tzong Yau,
Hong-Tzong Yau
Department of Mechanical Engineering,
e-mail: imehty@ccu.edu.tw
National Chung Cheng University
, Cha-Yi, 621, Taiwan, ROC
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Lee-Sen Tsou
Lee-Sen Tsou
Department of Mechanical Engineering,
e-mail: lstsou@cad.me.ccu.edu.tw
National Chung Cheng University
, Cha-Yi, 621, Taiwan, ROC
Search for other works by this author on:
Hong-Tzong Yau
Department of Mechanical Engineering,
National Chung Cheng University
, Cha-Yi, 621, Taiwan, ROCe-mail: imehty@ccu.edu.tw
Lee-Sen Tsou
Department of Mechanical Engineering,
National Chung Cheng University
, Cha-Yi, 621, Taiwan, ROCe-mail: lstsou@cad.me.ccu.edu.tw
J. Comput. Inf. Sci. Eng. Jun 2009, 9(2): 021001 (10 pages)
Published Online: May 19, 2009
Article history
Received:
September 15, 2006
Revised:
September 16, 2008
Published:
May 19, 2009
Citation
Yau, H., and Tsou, L. (May 19, 2009). "Efficient NC Simulation for Multi-Axis Solid Machining With a Universal APT Cutter." ASME. J. Comput. Inf. Sci. Eng. June 2009; 9(2): 021001. https://doi.org/10.1115/1.3130231
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