Real-time, dynamic level-of-detail management for three-axis NC milling simulation

Liu, Sili; Ong, S. K.; Chen, Y. P.; Nee, A. Y. C.

doi:10.1016/j.cad.2005.11.003

Cited by 28 publications

(12 citation statements)

References 12 publications

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“…has resulted in the fluctuation of the curve. Compared with the method presented in the work of Liu et al (2006), the performance of the method proposed in this paper is better with the same circumstance including milling the same part, the simulation result shows that two methods can produce same rendering quality, but the frame rate of the proposed method is 11 fps faster than that of Liu et al (2006).…”

Section: Simulation Resultsmentioning

confidence: 72%

“…At the initial stage, it uses the dexel representation; however, after an overall cutting of the upper surface, the mesh becomes irregular. Liu et al (2006) developed an approach to reduce the number of polygons without much loss in image quality using regular mesh LOD. Their algorithm can automatically adjust the polygon density to approximate the milling surface according to its changes in real-time, and numerical inspections of any area of the machined surface can be performed with full resolution.…”

Section: Adaptive Triangular Mesh Simulation Methodsmentioning

confidence: 99%

“…The cutter is moving along the tool path driven by a NC program. As the cutter removing material, intersection operation based on image forms the machining result of the workpiece (Koenig & Groeller, 1998;Liu, Ong, Chen, & Nee, 2006). Traditional NC milling simulation methods are geometric simulation which only consider the geometric information of the cutter and the workpiece and ignore the cutting parameters, cutting forces and other physical factors.…”

Section: Introductionmentioning

confidence: 99%

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Three-axis NC milling simulation based on adaptive triangular mesh

Mao

Liu

Zhu

2011

Computers & Industrial Engineering

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Section: Simulation Resultsmentioning

confidence: 72%

Section: Adaptive Triangular Mesh Simulation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Three-axis NC milling simulation based on adaptive triangular mesh

Mao

Liu

Zhu

2011

Computers & Industrial Engineering

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“…To enhance display quality and speed, Liu et al [6] suggested recording multiple segmented quadrilaterals in a quad-tree data structure of the work piece surface. After tool processing, the surface enveloped by the tool was re-segmented or nodes were removed to form new polygons in accordance with allowable errors.…”

Section: Introductionmentioning

confidence: 99%

A Modified Z-Map Computational Interpolation Algorithm for Surface Machining Simulation

Tsai

2013

Transactions of the Canadian Society for Mechanical Engineering

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The Z-Map algorithm is one of the most simplistic methods for NC code simulation in obtaining the machined working surface information; therefore, it is often being applied in NC simulation. In this paper, a modified Z-Map computational algorithm was proposed to calculate mesh position and Z coordinates of tool scanning surface according to tool path and initial tool scanning boundary in reducing the long computation time. The proposed algorithm not only can be used to derive straight line and arc machining tool path, but also can be adopted for helical and spline curves. There is no need to simplify the non-linear curves beforehand. The method proposed in this paper provides a feasible reference for decision about the reliability and suitability of each machining step.

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“…To enhance display quality and speed, Liu et al [7] proposed to record multiple segmented quadrilaterals in quad-tree data structure of the work piece surface. After tool processing, the surface enveloped by the tool was re-segmented or removed of nodes to form the new polygons in accordance with allowable errors.…”

Section: Literature Reviewmentioning

confidence: 99%

Integrating Solid Cutting Simulation And Error Verification For Surface Machining Application

Hsin¹,

Jo²,

Yung³

2012

Proceedings of the 2nd International Conference on Computer Application and System Modeling

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Abstract-In this paper, a method integrating NC decoding and solid milling simulation to solve this problem is proposed. A modified Z-Map computational algorithm is adopted and it directly uses straight line and arc interpolation algorithms to calculate mesh position and Z coordinates of tool scanning surface according to tool path and initial tool scanning boundary in reducing the long computation time. The proposed method in this paper includes NC decoding, solid cutting simulation, virtual measuring, and the residual material calculation in previous process. This method owns the advantage of no need to solve non-linear equation any more. Subsequently, through comparing the product surface with the data decoded from the NC program, the magnitude and the position of the machining geometry error could be calculated to serve as important reference for the machining process of complex geometry such as a 3D surface. An example was demonstrated to the feasibility of the proposed method.

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Real-time, dynamic level-of-detail management for three-axis NC milling simulation

Cited by 28 publications

References 12 publications

Three-axis NC milling simulation based on adaptive triangular mesh

Three-axis NC milling simulation based on adaptive triangular mesh

A Modified Z-Map Computational Interpolation Algorithm for Surface Machining Simulation

Integrating Solid Cutting Simulation And Error Verification For Surface Machining Application

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