Journal Article10.1080/0951192X.2015.1068451
Five-axis tool path generation based on machine-dependent potential field
Pengcheng Hu,Kai Tang +1 more
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TL;DR: By considering the local geometry of the part surface and the speed and acceleration limits of the machine’s axes, a vector field called machine-dependent potential field is proposed to characterise the relationship between the material removal rate and the feed direction, and a new five-axis tool path generation algorithm is proposed.
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Abstract: Traditional methods for improving machining efficiency in five-axis machining mainly concentrate on two frontiers. One seeks to minimise the total length of the tool path, while the other aims at maximising the feedrate. These two optimisations are carried out independently at different stages of a machining process and often conflict each other. Explicitly, a tool path with minimum total tool path length may turn out to be inferior when the specific machine tool’s capacities are considered, and, in order not to exceed the limits of those capacities, the machine’s controller has to keep the feedrate under an inordinately low level, thus actually prolonging the real machining time. In this article, by considering the local geometry of the part surface and the speed and acceleration limits of the machine’s axes, a vector field called machine-dependent potential field is proposed to characterise the relationship between the material removal rate and the feed direction. Based on this introduced potential field, and combined with the well-known iso-cusp height expansion method, a new five-axis tool path generation algorithm is proposed. Preliminary experiments show that this new algorithm can sometimes achieve substantial savings in total machining time over the existing methods.
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Citations
Efficiency-Optimal Iso-Planar Tool Path Generation for Five-axis Finishing Machining of Freeform Surfaces
TL;DR: This paper presents an efficiency-optimal iso-planar tool path generation algorithm for multi-axis machining of freeform surfaces that takes the kinematic capacities of the machine tool in full consideration and is able to substantially improve the machining efficiency.
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Machine Based Energy-Saving Tool Path Generation for Five-Axis End Milling of Freeform Surfaces
TL;DR: In this article, a tool path generation method was proposed to find a good balance between the best fitting to the potential field (to minimize the total energy consumption) and the desired streamline patterns of the tool path.
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Multi-axis Variable Depth-of-cut Machining of Thin-walled Workpieces Based on the Workpiece Deflection Constraint
TL;DR: The proposed machining strategy strives to maximize the depth-of-cut locally for every cutter-contact (CC) point while respecting a threshold of the cutting force that is normal to the workpiece surface as it is the major effective force causing the deflection.
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Automatic Sweep Scan Path Planning for Five-Axis Free-Form Surface Inspection Based on Hybrid Swept Area Potential Field
Yang Zhang,Kai Tang +1 more
TL;DR: A practical algorithm for automatic generation of sweep scan paths for inspection of an arbitrary free-form surface, which is particularly suitable for those industrial parts that are large but relatively smooth, such as windmill blades and automobile panels.
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Region based five-axis tool path generation for freeform surface machining via image representation
Ke Xu,Yingguang Li +1 more
TL;DR: A region based five-axis tool path generation method for freeform surface machining, which is solely based on digital image processing and the computed tool path outperforms the benchmarks by reducing the machining time for as much as 40%, as verified in the physical cutting test.
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Constant Scallop-height Machining of Free-form Surfaces
Krishnan Suresh,D. C. H. Yang +1 more
TL;DR: In this article, the scallop height is kept constant, which leads to a significant reduction in the size of the CL (cutter location) data accompanied by a reduction in machining time.
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Feed optimization for five-axis CNC machine tools with drive constraints
TL;DR: In this paper, a feed scheduling algorithm for CNC systems is presented to minimize the machining time for five-axis contour machining of sculptured surfaces, where the variation of the feed along the tool-path is expressed in a cubic B-spline form.
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A machining potential field approach to tool path generation for multi-axis sculptured surface machining
Chuang-Jang Chiou,Yuan-Shin Lee +1 more
TL;DR: Compared to the traditional iso-parametric and iso-planar path generation methods, the generated MPF multi-axis tool paths can achieve better surface finish with shorter machining time and improved machining efficiency of sculptured surface machining.
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Non-isoparametric tool path planning by machining strip evaluation for 5-axis sculptured surface machining
TL;DR: The techniques presented in this paper can be used to improve 5-axis machined surface quality and to automate the non-isoparametric cutter path generation for CAD/CAM systems.
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