Results 231 to 240 of about 9,250,019 (280)

Tool path optimization in postprocessor of five-axis machine tools

The International Journal of Advanced Manufacturing Technology, 2013
Generally, tool path is generated in a computer-aided manufacturing software considering only the geometry of machining parts. It is converted into numerical control (NC) codes in the postprocessor based on the particular machine kinematics. For some special types of five-axis machine tools, e.g., non-orthogonal five-axis machine tools, the generated ...
Jiangang Li, Hongsheng Zhouyang, Yunjiang Lou   +2 more
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Tool path planning for aspheric five-axis machine tools

AOPC 2019: Optical Spectroscopy and Imaging, 2019
Aspheric surfaces are widely used in modern optical systems. At present, five-axis machine tools are widely used for aspheric surfaces grinding and shaping. The technology of milling aspheric surface with five-axis machine tool is studied. According to the B-C double turntable five-axis machine tool, its kinematics model is analyzed.
Yongxiang Zhu, peiji Guo, Xi chen
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Parameters Identification of a Five-Axis Machine Tool by Haar Wavelet

2019 IEEE 15th International Conference on Automation Science and Engineering (CASE), 2019
Physical parameters in the dynamic model of a machine tool have to be concerned in order to design and develop model-based control algorithm. This work presents the parameter identification for a 5-axis machine tool. The system dynamics is strongly nonlinear, but can be linearly parameterized with 12 unknown parameters.
Apisit Pinitnanthakorn, Shyh-Leh Chen
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Ruled Surface Machining on Five-Axis CNC Machine Tools

Journal of Manufacturing Processes, 2000
Abstract To achieve high precision and high productivity in machining sculptured surfaces, a new architecture for a five-axis CNC interpolator for machining ruled surfaces was developed and demonstrated on a milling machine. The objective of the five-axis interpolator is to continuously maintain the milling cutter axis in parallel with the straight ...
Rong-Shine Lin, Yoram Koren
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Synchronization of tool tip and tool orientation contour errors in five-axis machining

2012 American Control Conference (ACC), 2012
In current CNC machines, each axis is generally controlled by an individual controller, which tries to minimize the axial position tracking error. However, eliminating the tracking errors of each individual axis in multi-axis feed drive systems may not guarantee the desired contouring accuracy.
Abd El Khalick Mohammad, Naoki Uchiyama, Shigenori Sano   +2 more
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Tool path generation for five-axis machining of impellers

International Journal of Production Research, 1999
This paper proposes a new tool path generation method for machining impellers with five-axis machines. Using the geometric characteristics of impellers, the proposed method first computes the tool path in the cylindrical coordinates and then converts it into the cartesian coordinates.
Sehyung Park, Minho Chang, Jae Hyuang Ju
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Research on tool path planning for five-axis machining

2009 IEEE International Conference on Industrial Engineering and Engineering Management, 2009
Tool path planning of CNC motion controller includes tool path interpolation and velocity planning. Five-axis machine tools have been adopted in mold surface and aerospace part machining. In this paper, the kinematics frame based on dual quaternion D-H representation was applied to define the coordinates of five-axis machines systematically ...
Peinan Li, Ruifeng Guo, Pin Wang, Yan Huang   +3 more
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Smooth Geodesic Interpolation for Five-Axis Machine Tools

IEEE/ASME Transactions on Mechatronics, 2016
The smoothness of tool trajectories would be as important as that of axis trajectories for five-axis machining. The present study proposes a geodesic interpolation for five-axis machine tools. The tool positions and orientations are fitted to geodesics, respectively, to achieve smooth accurate motions of the tool center point (TCP), smooth axis motions,
Youdong Chen, Ling Li
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Five-Axis Curve Machining for Computer Control Machine Tools

2011
Five-axis machining has been widely used in aerospace, automobile and mold/die industries. It has many advantages compared to conventional three-axis machining, including higher metal removal rates, better surface finish, and more precise part surface in one setup.
Rong-Shine Lin, Shyh-Leh Chen
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Modeling and Compensation for Five-Axis Machine Tool Errors

Manufacturing Science and Engineering: Volume 2 — Non-Traditional Design and Layered Manufacturing; Rolling Technology; Intelligent Machine Tool Systems; Measurement and Inspection of Products and Processes; Non-Traditional Manufacturing Processes of the 1990s, 1994
Abstract A neural network based compensation strategy for five-axis machine tool error correction has been developed. It is capable of significantly reducing geometric, kinematic and thermal errors between the tool tip and the workpiece.
S. C. Veldhuis, M. A. Elbestawi
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