Results 151 to 160 of about 16,149 (200)

Error Source Identification of Machining Accuracy of Five-Axis Linkage CNC Machine Tools

Advanced Materials Research, 2013
The error sources of machining accuracy of CNC machine tools including geometric error, thermal error, system error and error of load control etc. The error source affect the relative position of the cutting tool and the workpiece by the dynamic motion, and then affect the machining accuracy of the workpiece. By trial cutting method, "S" test part is a
Zhi Ping Guo, Zhi Yong Song, Rong Bo Shi
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Modeling of the Dynamic Contour Error of Five-Axis CNC Machine Tools

Dynamic Systems and Control, 1999
Abstract This paper focuses on the dynamic contour errors due to the coordinated five-axis motion. The dynamic contour error for tracking a contour is defined as the difference between the desired contour and the actual responded tool trajectory to the contouring motion command.
Rong-Shine Lin, C. W. Hu
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A tool path correction and compression algorithm for five-axis CNC machining

Journal of Systems Science and Complexity, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Geng, Cong, Yu, Dong, Zheng, Liaomo, Zhang, Han, Wang, Feng   +4 more
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An algorithm for tool orientation vectors compression on five-axis CNC machining

2011 6th IEEE Conference on Industrial Electronics and Applications, 2011
An algorithm for tool orientation vectors compression is proposed in this paper with the aim of shortening size of machining codes and maintaining small feedrate fluctuations in five-axis CNC machining. In this algorithm, tool orientation vectors are firstly segmented according to the inflection of the curve composed of their tips. Secondly, vectors in
Geng Cong, Zhang Xiaohui, Yu Dong
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Non-bar, an optical calibration system for five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2012
Abstract Five-axis CNC machine tools comprise three linear axes and two rotary axes, enabling the fabrication of complex workpieces, such as dies, turbo blades, and cams. Improved measurement methods are continually being researched to increase the accuracy of five-axis CNC machine tools. This paper presents a novel optical calibration system, called
Wenyuh Jywe, Tung-Hui Hsu, C.-H. Liu
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Modelling geometric and thermal errors in a five-axis cnc machine tool

International Journal of Machine Tools and Manufacture, 1995
Abstract The total volumetric error within the workspace of a machine tool is induced by the propagation of both scalar and position dependent geometrical errors, as well as time-variant thermal errors. This paper presents a compact volumetric error model which can be used as a basis for a practical compensation scheme.
A.K. Srivastava, S.C. Veldhuis, M.A. Elbestawit   +2 more
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An efficient error compensation method for coordinated CNC five-axis machine tools

International Journal of Machine Tools and Manufacture, 2017
Abstract The paper introduces a new automatic drilling and riveting system for aircraft assembly which is composed of two five-axis machine tools in coordination. As a dual-machine system, relative position and orientation accuracy of coordinated machines is the decisive factor for high fastening quality.
Dan Zhao, Yunbo Bi, Yinglin Ke
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Ballbar dynamic tests for rotary axes of five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2014
Abstract This paper proposes a new ball bar test method for the inspection of dynamic errors of rotary axes in five-axis CNC machine tools. The test circle is defined in a workpiece coordinate system and the ball bar test is performed by simultaneously driving of linear–rotary axis couple.
Wei-Tai Lei, Wen-Chung Wang, Tien-Ching Fang   +2 more
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Design of Power System of Five-Axis CNC Machine Tool

2020
The power system of five-axis CNC machine tool is designed to determine the maximum machining working space with alloy steel material and maximum overall dimension. Based on the analysis and calculation of machining process parameters, the cutting force, cutting speed, power and torque are checked.
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Double ballbar test for the rotary axes of five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2007
In this paper a new method that uses the double ballbar to inspect motion errors of the rotary axes of five-axis CNC machine tools is presented. The new method uses a particular circular test path that only causes the two rotary axes to move simultaneously and keeps the other three linear axes stationary. Therefore, only motion errors of the two rotary
W.T. Lei, M.P. Sung, W.L. Liu, Y.C. Chuang   +3 more
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