International Journal of CAD/CAM

Society for Computational Design and Engineering (한국CDE학회)
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An Efficient No-Core Cut Pocketing CAM System for Wire-EDM

  • EL-Midany, Tawfik T. (Prod Eng. & Mechanical Design Dept., Mansoura University) ;
  • Kohail, Ahmed M. (Technology Development Branch, Specialized Studies Academy, Workers' University) ;
  • Tawfik, Hamdy (Technology Development Branch, Specialized Studies Academy, Workers' University)
  • Published : 2006.12.31
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Abstract

Recently, wire-EDM became a necessity for many engineering applications, particularly in the dies making. No-Core cut process is helpful for operations in which falling slug can jam the machine or wire. In this paper a proposed CAM system (called NCPP) is introduced, to overcome the limitations of the existing CAM systems in the machining of No-Core cut. The proposed CAM system (NCPP) provides pocketing of No-core cut and optimal selection of the position of starting hole (wire threading point), to minimize toolpath length. It was written for data exchange between CAD-CAM-CNC machines. This data model will become part of the ISO (Data model for Computerized Numerical Controllers) international standard. The NCPP system has been implemented in Visual C++. Many examples are used to illustrate NCPP system. The results show that, NCPP saves the machining time by significant value. This value depends on the shape and complexity of the workpiece that is being cut.

Keywords

References

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