Conformal Interpolating Algorithm Based on Cubic NURBS in Aspheric Ultra-Precision Machining

摘要：

Numeric control machining and on-line compensation for aspheric surface are key techniques in ultraprecision machining. In this paper, conformal cubic NURBS interpolating curve is applied to fit the character curve of aspheric surface. Its algorithm and process are also proposed and imitated by Matlab7.0 software. To evaluate the performance of the conformal cubic NURBS interpolation, we compare it with the linear interpolations. The result verifies this method can ensure smoothness of interpolating spline curve and preserve original shape characters. The surface quality interpolated by cubic NURBS is higher than by line. The algorithm is benefit to increasing the surface form precision of workpieces in ultra-precision machining.

作者: C G Li Q R Zhang C G Cao S L Zhao

作者单位: School of Instrument Science and Optoelectronics Engineering, Beihang University,Beijing 100083, Chi Beijing Machine Tool Institute Precision Mechatranic Co.,Ltd., Beijing 100102,China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 1042-1047

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）