An efficient iso-scallop tool path generation method for three-axis scattered point cloud machining

Liu, Wei; Zhu, Shumei; Huang, Tao; Zhou, Chen

doi:10.1007/s00170-020-05188-y

Cited by 12 publications

(5 citation statements)

References 24 publications

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“…This methodology involves the stitching and refinement of overlapping toolpaths. Meanwhile, in the study by Liu et al [13] a highly efficient method for generating iso-scallop tool paths was presented. This method directly computes scallop points and cutter location (CL) points for iso-scallop paths from scattered data points using iterative algorithms, eliminating the need for point offsetting surface fitting.…”

Section: Introductionmentioning

confidence: 99%

Tool path planning of ball-end milling of free-form surfaces as a search algorithm

Mgherony,

Mikó

2024

Acta Tech. Jaurinensis

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This paper introduces an innovative approach for generating three-axis CNC tool paths for machining free-form surfaces. The method is designed to minimize variations in the effective tool diameter, addressing a common challenge encountered when using ball-end tools for machining free-form surfaces. These surfaces exhibit varying inclinations, leading to fluctuations in the tool’s working diameter from one point to another, resulting in inconsistent cutting speeds and milling parameters despite a constant spindle speed. Consequently, the machined surface tends to lack uniformity. In contrast to conventional tool path planning techniques, the proposed method calculates the working diameter at each adjacent point and guides the tool’s movement towards the point where the smallest change in working diameter is anticipated. This approach reduces fluctuations in cutting speed and promotes the generation of a more homogeneous surface.

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Section: Introductionmentioning

confidence: 99%

Tool path planning of ball-end milling of free-form surfaces as a search algorithm

Mgherony,

Mikó

2024

Acta Tech. Jaurinensis

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“…Regarding toolpath generation, many researchers have focus on the development and optimization of toolpath planning strategies mainly based on CAD representations [7]- [11]. However in recent years, with the growing interest and use of reverse engineering as an alternative route of product development, many studies focus toolpath generation from point cloud data from 3D scanning [12]- [15]. This paper presents a methodology developed with computational design that integrates CAD-CAPP-CAM and also allows the incorporation of CAE tools for the optimization of the scanned parts, as well as optimization algorithms to optimize the toolpaths and the selection of tools under different criteria.…”

Section: Introductionmentioning

confidence: 99%

NC Toolpath Generation and Optimization from 3D Point Cloud in Reverse Engineering

Garcia-Dominguez,

Claver,

Ayllón

et al. 2023

Advances in Science and Technology

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In times when companies must respond efficiently to market demands, reverse engineering plays a fundamental role. Although design processes are commonly developed with digital workflows, in reverse engineering different and independent phases with bottlenecks between them are involved. The present work addresses the challenge of establishing a continuous and efficient data flow between the three-dimensional digitized data obtained with 3D scanning and the automatic generation of NC toolpaths. A methodology is developed for the generation and optimization of NC toolpaths directly from the 3D point cloud data obtained through the three-dimensional scanning of pre-existing geometries. The methodology consists of an algorithm developed with Grasshopper, a script for visual programming in Rhino’s interface. It does not only attempt to reconstruct the three-dimensional geometry of the scanned part but also, it directly generates the tool paths and optimizes them with evolutionary optimization algorithms that are integrated in the methodology. A case study is developed for TMU-SIO TOWGTAI machining center with the proposed methodology. Finally, the obtained results and the efficiency of the methodology are analyzed and presented.

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“…requires further work. Similarly, [25] Liu improved his previous mathematical algorithm [26] which aims to adjust the CL data to obtain the best possible scalloped shape surface in terms of the scallop parameter.…”

Section: Introductionmentioning

confidence: 99%

Identifying the lead angle limit to achieve required surface roughness in ball-end milling

Pesice

Vavruska²,

Falta³

et al. 2022

Preprint

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When milling generally-shaped surfaces with a ball-end milling tool, machined surface roughness and accuracy as well as machining productivity are often monitored. Improving one of these parameters often causes a decrease in the other monitored parameters. Therefore, knowing possible ways of influencing these parameters is important for achieving the optimum result, if possible, in all requirements. A deep understanding of how some technological parameters influence finished surface roughness is still lacking, as well as detailed knowledge of the relationships among some roughness parameters. In response, an experiment entailing machining of planar samples at different orientation angles was carried out to identify the influence of the studied parameters on the transverse roughness of the final surface. A finding was made, that the resulting surface roughness is dependent on the cutting edge geometry of the particular ball-end milling tools used and the achieving of the required surface roughness can be guaranteed by setting the specific lead angles. Furthermore, it was verified that a minimum lead angle limit can be found based on the geometric properties of the specific milling tool, and the relationship between the evaluated roughness parameters Ra and Rz was found as well.

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An efficient iso-scallop tool path generation method for three-axis scattered point cloud machining

Cited by 12 publications

References 24 publications

Tool path planning of ball-end milling of free-form surfaces as a search algorithm

Tool path planning of ball-end milling of free-form surfaces as a search algorithm

NC Toolpath Generation and Optimization from 3D Point Cloud in Reverse Engineering

Identifying the lead angle limit to achieve required surface roughness in ball-end milling

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