Spiral tool path generation for diamond turning optical freeform surfaces of quasi-revolution |
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| Affiliation: | 1. The G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, United States;2. Department of Production Engineering, KTH Royal Institute of Technology, Stockholm 100 44, Sweden;1. State Key Laboratory of Precision Measuring Technology & Instruments, Centre of MicroNano Manufacturing Technology, Tianjin University, Tianjin 300072, China;2. Center for Analysis and Measurement, Tianjin University, Tianjin 300072, China |
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| Abstract: | Space Archimedean spiral is defined firstly in this paper. Thereafter, a new spiral tool path generation based on space Archimedean spiral is proposed for diamond turning optical freeform surfaces of quasi-revolution, which is defined as a surface close to some surface of revolution. By projecting the space Archimedean spiral onto the freeform surface along the normal direction of the base surface instead of a fixed direction like traditional method, a quasi-uniform spiral tool path on the freeform surface can be obtained. This method can be used on diamond turning optical freeform surfaces. Finally, two examples are presented to prove its effectiveness and adaptability. |
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| Keywords: | Spiral tool path Ultraprecision machining Diamond turning Surface of quasi-revolution Space Archimedean spiral |
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