Double-spiral tool path in configuration space

Hauth, Steffen; Linsen, Lars

doi:10.1007/s00170-010-3004-9

Cited by 20 publications

(15 citation statements)

References 22 publications

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“…Li [5], et al presented an efficient 2D invalid loops removal algorithm to obtain valid cutter contact (CC ) contours and cutter location (CL) contours. Zhu [6], Chen [7], Lee [8] and Hauth [3], et al proposed contour offset approach to spiral tool-path generation with constant scallop height method, respectively, in order to minimize the processing time, as redundant machining in iso-parametric and iso-planar methods were minimized since the scallop height was kept constant. Then, the spiral tool-paths were similarly generated as a set of the diagonals between the offset curves.…”

Section: Related Workmentioning

confidence: 99%

“…But all these above-mentioned algorithms needed to make self-intersection type judgments and reduce operations. Except for Pateloup [4] and Hauth's [3] algorithms, other algorithms all come with sharp corners, which means these spiral tool-paths were not smooth enough and sudden direction changes of the velocity vectors were more likely to occur. So these methods were not available for general actual machining, let alone HSM.…”

Section: Related Workmentioning

confidence: 99%

“…Since the spiral toolpath starts on the outside border and stops in the center (or vice versa), undesired artifacts may occur in starting or stopping operation. This effect gets even more intensified when there is a high curvature at the start or the end of the tool-path, especially inside of the spiral [3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

CNC double spiral tool-path generation based on parametric surface mapping

Zhou

Zhao

2015

Computer-Aided Design

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

CNC double spiral tool-path generation based on parametric surface mapping

Zhou

Zhao

2015

Computer-Aided Design

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“…The existing tool path generation methods are mainly based on CPO, then connecting the offset loops to generate spiral tool path (Li et al, 2013;Lin et al, 2013). Moreover, Hauth and Linsen (2012) proposed an algorithm which created a double spiral by blending adjacent offset curves. When the given offset curves divided into multiple components, the algorithm created multiple smaller spirals and connected them appropriately.…”

Section: Introductionmentioning

confidence: 99%

“…However, this method was not considered as machining parameters, so there occurred repeat-machining or residual-machining areas. Since undesired artifacts may get even more intensified when there is a high curvature at the start or the end of the spiral tool path, especially inside of the spiral (Hauth and Linsen, 2012). The double spiral tool-path which can effectively reduce the high curvature in the internal spiral tool path may become a superior choice for precision milling.…”

Section: Introductionmentioning

confidence: 99%

Double spiral tool-path generation and linking method for complex pocket machining

Zhou

Zhao

et al. 2016

Machining Science and Technology

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Complex pockets with one or more islands have been widely used in industrial and manufacturing production. In this paper, a new double spiral tool-path generation and linking method are proposed for complex pockets with islands which can be used for high-speed machining (HSM) is used. Taking into account the path interval, step length and other processing parameters, precise milling can be achieved without cutter lifting and retraction motions to guarantee machining accuracy and reduce processing time. The method has been implemented 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 achieve HSM of complicated shaped pockets based on parametric surface.

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Contour-parallel offset machining for trimmed surfaces based on conformal mapping with free boundary

Sun

Ren

Zhu

et al. 2011

Int J Adv Manuf Technol

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The parametric surfaces of some manufactured parts are often subjected to the Boolean operation of other objects; generating suitable NC tool paths from such trimmed surface remains a challenge. This paper presents a new planar development-based method to generate contour-parallel offset paths of trimmed surfaces. To avoid direct frequent identifications and removals of interferences of offset curves on 3D-trimmed surface possibly with multiple holes or restricted regions, the original surface is flattened in the plane domain using a two-stage approach which consists of conformal mapping with free boundary and further nonlinear accuracy improvement. Then, sequent offsets of the boundary curves of the planar region are generated, and the global interferences are detected and removed using an efficient and robust divide-and-conquer strategy. Based on a tree data structure, a tool-path linking algorithm is also given with less or no tool retractions, and subsequently, the resulting planar paths are inversely mapped to the physical space. Illustrated examples have been conducted to testify the affectivity and the applicability of the proposed contour-parallel offset machining method.

show abstract

Double-spiral tool path in configuration space

Cited by 20 publications

References 22 publications

CNC double spiral tool-path generation based on parametric surface mapping

CNC double spiral tool-path generation based on parametric surface mapping

Double spiral tool-path generation and linking method for complex pocket machining

Contour-parallel offset machining for trimmed surfaces based on conformal mapping with free boundary

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