Generating tool-path with smooth posture change for five-axis sculptured surface machining based on cutter’s accessibility map

Li, L. L.; Zhang, Y. F.; Li, H. Y.; Geng, Lin

doi:10.1007/s00170-010-2849-2

Cited by 34 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The part surface was partitioned into clusters so that the streamlines of the vector field are close to the conventional isoparametric (ISO) or spiral in [13,14]. Optimal or nearly optimal directions can be combined with rear gouging, global gouging, and machine limits constraints [15]. Recently a machine-dependent vector field has been proposed in [43].…”

Section: The Optimization Problem Is Then Given By Minimize Dist( )mentioning

confidence: 99%

Vector Field Guided Tool Paths for Five-Axis Machining

Makhanov¹

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

Abstract. We propose a new framework for toolpath generation for 5 axis machining of part surfaces represented by the StereoLithography (STL) format. The framework is based on flattening the STL part and generation of curvilinear toolpaths adapted to the vector field of optimal directions. The experiments show that there is no universal sequence of steps applicable to every surface. However, a correct choice of the tools available within the proposed ACTframework always leads to a substantial improvement of the toolpath, in terms of its length and the machining time.6847 Stanislav S. Makhanov

show abstract

Section: The Optimization Problem Is Then Given By Minimize Dist( )mentioning

confidence: 99%

Vector Field Guided Tool Paths for Five-Axis Machining

Makhanov¹

2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

View full text Add to dashboard Cite

show abstract

“…Optimal or nearly optimal directions can be combined with rear gouging, global gouging and machine limits constraints (Li et al 2011). Recently a machine-dependent vector field has been proposed in (Hu and Tang 2015).…”

Section: Introductionmentioning

confidence: 99%

Five-axis machining of STL surfaces by adaptive curvilinear toolpaths

Moodleah

Bohez

Makhanov

2016

International Journal of Production Research

View full text Add to dashboard Cite

We propose a new framework for toolpath generation for five-axis machining of part surfaces represented by the StereoLithography (STL) format. The framework is based on flattening the STL part and generation of adaptive curvilinear toolpaths. The corresponding cost functions, designed to represent the accuracy and the efficiency of the toolpath, are scalar functions, such as the curvature, kinematic error, rotation angles, machining strip or material removal rate or a vector field when the tool moves along a curvilinear path partly or even entirely aligned with directions considered to be optimal. The adaptive toolpath exploits grid generation methods and biased space-filling curves, combined with adaptation to the boundary and the domain decomposition. The proposed methodology of the adaptive curvilinear toolpath (ACT) has been tested on a variety of STL surfaces, including a case study of STL dental parts. Machining crowns/ implants for four basic types of human teeth, molar, premolar, canine and incisor, has been considered and analysed. The reference methods are the standard iso-parametric path, MasterCam toolpath, and advanced methods of NX9 (former UG). The experiments show that there is no universal sequence of steps applicable to every surface. However, a correct choice of the tools available within the proposed ACT-framework always leads to a substantial improvement of the toolpath, in terms of its length and the machining time.

show abstract

“…Liu et al [20] propose an algorithm to generate C-spaces for point cloud but with emphasis on local gouging and rear gouging. Li et al [21] present a series of algorithms to generate tool paths with smooth tool motion and high efficiency based on the accessibility map (A-map) of the cutter at a point on the Fig. 2 Concept of 2-dimensional C-space [16] part surface.…”

Section: Introductionmentioning

confidence: 99%

Tool orientation optimization for 5-axis machining with C-space method

Yuan

et al. 2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Collision avoidance is a fundamental problem in five-axis tool path planning. A two-step frame is widely used in tool path generation, that is, to determine C-spaces and then to design collision free pathes in the C-spaces. We present a feasible C-space computation algorithm for triangular mesh models based on collision-cone computation and stereographic projection. Then we sample points in the free area at each CC point and generate a tool orientation using the graph-based method. We also introduce a difference graph to find a smoother tool orientation. Experimental results show that the accelerations and velocities of the rotation axes are much smoother than those given by Plakhotnik and Lauwers (Int J Adv Manuf Technol 74:307-318, 2014).

show abstract

Generating tool-path with smooth posture change for five-axis sculptured surface machining based on cutter’s accessibility map

Cited by 34 publications

References 24 publications

Vector Field Guided Tool Paths for Five-Axis Machining

Vector Field Guided Tool Paths for Five-Axis Machining

Five-axis machining of STL surfaces by adaptive curvilinear toolpaths

Tool orientation optimization for 5-axis machining with C-space method

Contact Info

Product

Resources

About