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题名: CNC double spiral tool-path generation based on parametric surface mapping
作者: Zhou B(周波); Zhao JB(赵吉宾); Li L(李论)
作者部门: 装备制造技术研究室
关键词: High-speed machining ; Partial differential equations ; Parameter domain ; Mapping rule ; Double spiral tool-path
刊名: CAD Computer Aided Design
ISSN号: 0010-4485
出版日期: 2015
卷号: 67-68, 页码:87-106
收录类别: SCI ; EI
产权排序: 1
项目资助者: National Key Basic Research Project of China (grant # 2011CB302400) and National Natural Science Foundation of China (grants # 50975274, 50975495).
摘要: High-speed machining (HSM) has been an important method for machining complex parametric surface. Tool-path planning for HSM has a significant impact on processing efficiency and surface quality. A new double spiral tool-path generation algorithm for HSM is proposed in this paper. First, the isothermal lines which satisfy the machining parameters in the mapping parametric domain are computed by means of constructing a thermal conductivity model and solving partial differential equations (PEDs). Furthermore, a smoothness optimization method is proposed to improve the smoothness of the isothermal lines and avoid taking up too much memory. Then, the mapping rules are constructed and the trajectory is planned out in the standard parametric domain in order to generate double spiral trajectory in the corresponding parametric domain. Finally, the trajectory is mapped onto the parametric surface to obtain the tool-paths, and the tool-paths linking method is planned for complex multi-domains. This method can realize the precision milling of complicated parametric surface without tool retractions, and meanwhile it improves the uniformity of the tool-paths and machining efficiency. Our method has been experimented in several simulations and validated successfully through the actual machining of a complicated pocket. The results indicate that this method is superior to other existing machining methods, and it can realize HSM of complicate-shaped pocket based on parametric surface.
语种: 英语
WOS记录号: WOS:000359326800007
WOS标题词: Science & Technology ; Technology
类目[WOS]: Computer Science, Software Engineering
关键词[WOS]: CONSTANT SCALLOP-HEIGHT ; SCULPTURED SURFACES
研究领域[WOS]: Computer Science
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/16833
Appears in Collections:装备制造技术研究室_期刊论文

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