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题名: NURBS curve interpolation algorithm based on tool radius compensation method
作者: Zhou B(周波); Zhao JB(赵吉宾); Li L(李论); Xia RB(夏仁波)
作者部门: 装备制造技术研究室
关键词: tool radius compensation ; continuous short block ; NURBS fitting ; look ahead ; acceleration/deceleration feedrate-planning
刊名: International Journal of Production Research
ISSN号: 0020-7543
出版日期: 2016
卷号: 54, 期号:15, 页码:4448-4474
收录类别: SCI ; EI
产权排序: 1
项目资助者: National Programme on Key Basic Research Project of China (973 Programme) [grant number 2011CB302400] ; National Natural Science Foundation of China (NSFC) [grant number 51175495].
摘要: This paper focuses on developing an algorithm that can generate toolpaths in NURBS form for smooth, high speed and accurate machining. The initial toolpaths are obtained by tool radius compensation method which is based on the workpiece boundary offsetting. According to different lengths and the continuous short block (CSB) criterion, these offset linear segments can be regarded as CSBs or long straight segments. Junctions are located where the curvature value is greater than the preset curvature threshold value or where it changes abruptly, or at the two end points of any long straight segment. During machining, the NURBS fitting module first looks ahead several CSBs and converts them into parametric curves in real time. During the conversion, continuities of the position, slope or even curvature at the transition of the parametric curves and unfitted line segments can be guaranteed. Then the acceleration/deceleration feedrate-planning scheme is proposed to determine the transition feedrate at the junction between the fitted curves and unfitted long straight segments, and the corner feedrate within the fitted curve. Simulations and experiments show that the proposed algorithm can significantly improve machining accuracy and reduce cutting time to satisfy today’s high-speed and high-accurate machining requirements.
语种: 英语
WOS记录号: WOS:000380165200004
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Industrial ; Engineering, Manufacturing ; Operations Research & Management Science
关键词[WOS]: PARAMETRIC INTERPOLATOR ; CHORD ERROR ; FEEDRATE ; PATH ; ACCELERATION ; SURFACES ; LENGTH ; JERK
研究领域[WOS]: Engineering ; Operations Research & Management Science
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/16832
Appears in Collections:装备制造技术研究室_期刊论文

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Recommended Citation:
Zhou B,Zhao JB,Li L,et al. NURBS curve interpolation algorithm based on tool radius compensation method[J]. International Journal of Production Research,2016,54(15):4448-4474.
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