NURBS curve interpolation algorithm based on tool radius compensation method

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	NURBS curve interpolation algorithm based on tool radius compensation method
	Zhou B(周波); Zhao JB(赵吉宾); Li L(李论); Xia RB(夏仁波)
刊名	International Journal of Production Research
	2016
卷号	54 期号:15 页码:4448-4474
关键词	tool radius compensation continuous short block NURBS fitting look ahead acceleration/deceleration feedrate-planning
ISSN号	0020-7543
通讯作者	赵吉宾
产权排序	1
中文摘要	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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Industrial ; Engineering, Manufacturing ; Operations Research & Management Science
研究领域[WOS]	Engineering ; Operations Research & Management Science
关键词[WOS]	PARAMETRIC INTERPOLATOR ; CHORD ERROR ; FEEDRATE ; PATH ; ACCELERATION ; SURFACES ; LENGTH ; JERK
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000380165200004
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/16832]
专题	沈阳自动化研究所_装备制造技术研究室
推荐引用方式 GB/T 7714	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.
APA	Zhou B,Zhao JB,Li L,&Xia RB.(2016).NURBS curve interpolation algorithm based on tool radius compensation method.International Journal of Production Research,54(15),4448-4474.
MLA	Zhou B,et al."NURBS curve interpolation algorithm based on tool radius compensation method".International Journal of Production Research 54.15(2016):4448-4474.