A geometric modeling and five-axis machining algorithm for centrifugal impellers

Unlike in three-axis machining, in five-axis machining the flexibility in tool orientation in space is extremely high, To obtain the full advantage of five-axis machining, the computer-aided manufacturing (CAM) system must have similar flexibility in tool orientation. Unfortunately, most CAM systems that support-five-axis machining do not provide the required flexibility. A centrifugal impeller is a perfect example of a part that can be efficiently designed and manufactured with the help of a computer. Machining these types of complex shapes requires a CAM system with a high degree of flexibility in tool orientation. The use of programming languages is one of the best methods for eliminating the drawbacks of existing CAD/CAM systems and to obtain the flexibility required. This paper explains how flexibility is obtained using interactive geometric modeling and a programming language provided by a CAD/CAM system to access the geometry.