Development of advanced CAD/CAM techniques for high-performance 5-axis milling of sculptured parts

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With the advances of CAD/CAM technology, mechanical products with sculptured parts have been widely adopted in the aeronautical, automotive, and dies/molds industries, which always commit to better quality and higher productivity. Since CNC machining generally can make the parts with better quality, less costs, and shorter lead time, it is an important technique in the manufacturing industry. However, as top-notch, high performance 5-axis machining of the sculptured parts is still a great challenge, even though this technique is badly needed. The main reason for this is that some key techniques have not yet been successfully addressed. The applicant proposes advanced, innovative research on the key techniques, including (i) cutter size optimization for 5-axis sculptured part machining, (ii) NURBS tool path generation to make smooth, accurate surfaces, and (iii) efficient, accurate cutter/workpiece engagement in 5-axis surface milling.