Results 211 to 220 of about 4,985 (261)
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Workspace digitization for five-axis machining
2017 International Conference on Applied System Innovation (ICASI), 2017While performing five-axis machining, it is usually expected to complete all the cutting without having to re-clamp the workpiece. In other words, the workpiece should remain at the same location during the whole five-axis machining process. The current procedure to perform five-axis machining on a workpiece is to use CAM software to generate the tool ...
Wei-chen Lee, Ching-chih Wei
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Machinability analysis and setup optimization for five-axis machining
2016 International Conference on Applied System Innovation (ICASI), 2016Two potential problems are usually ignored by CAM software for five-axis machining: one is the overtravel for the three linear axes of the five-axis machine tool, and the other is the collision between the spindle and the worktable. The objective of this research was to propose a method based on the visibility map and then, develop a computer program ...
Wei-chen Lee, Ching-chih Wei
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Machine codes modification algorithm for five-axis machining
Journal of Materials Processing Technology, 2003Abstract Traditional CAM packages generate five-axis machining codes (G and M codes), which depend only on surface geometric information. When applying these codes to different five-axis CNC machines, the corresponding cutting errors sometimes are larger than the expected values.
Ming-Che Ho, Yean-Ren Hwang
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Tool selection for five-axis curvature matched machining
Computer-Aided Design, 2002This paper presents an automatic cutting tool selection methodology for five-axis finish surface machining based on the techniques of curvature matched machining. The criterion for cutter selection is to minimize the machine errors and to maximize material removal rate using an optimal filleted end mill selected from a standard cutting tool library ...
C. Greg Jensen, W. Edward Red, J. Pi
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Curvilinear space-filling curves for five-axis machining
Computer-Aided Design, 2008The paper presents a new combination of two methods for tool path generation for five-axis machining proposed earlier by the authors. The first method is based on the grid generation technologies whereas the second method exploits the space-filling curve approach. Combination of the two techniques is superior with regard to the conventional methods and
Weerachai Anotaipaiboon +1 more
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Kinematic Reliability Analysis of Five-Axis Machine Tool
Advanced Materials Research, 2011Five-axis CNC machine tool is the top product of numerically controlled machine tool. Kinmatic accuracy is an important index to evaluate the quality of mechanism. Kinematic accuracy analysis of the Five-axis machine tool in previous study ignores the randomness of each input error component, so the conclusions are imprecise.
Yang, Qiang +4 more
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Discretizors and Interpolators for Five-Axis CNC Machines
Journal of Manufacturing Science and Engineering, 1998Discretization and interpolation of curves are two frequently adopted practices when machining complex curves using computer numerically controlled (CNC) machines. Both practices stem from the need to sample curves at discrete time intervals corresponding to the sampling period of the CNC machine.
Radha Sarma, Aarthi Rao
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Kinematics Constrained Toolpath Planning for Five-Axis Machines
2008This paper presents a new general toolpath planning method which considers two important types of constraints: the kinematics constraint and the geometric feature constraints. The contact kinematics theory for rigid bodies is used to incorporate the two types of constraints into our optimization framework.
Tao Ye, Caihua Xiong
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The studies of spline interpolation for five-axis machining
2009 4th IEEE Conference on Industrial Electronics and Applications, 2009The study proposed a dual uniform B-spline interpolator architecture for computer numerical control (CNC) machines spline machining. For solving the different transformation in machining sculpture surface with five-axis machine tool, the format of G codes for five-axis spline interpolation is presented.
Liang Quan, Wang Yongzhang
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A Strategy for the Compensation of Errors in Five-Axis Machining
CIRP Annals, 1995Abstract This paper outlines a strategy for error compensation in five-axis machining. The strategy uses a neural network model for compensation of errors due to changes in temperature and axis motion. Long term errors due to wear will be addressed with an adaptive approach.
S.C. Veldhuis, M.A. Elbestawi
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