Results 261 to 270 of about 25,590 (283)

Position error compensation of robotic contour end-milling

International Journal of Machine Tools and Manufacture, 1990
Abstract Three-dimensional cutting force dynamics of end-milling is developed, and position error sources of robotic machining is studied. A strategy to compensate cutting force in force/motion control of robotic machining is established in order to achieve better positioning accuracy.
Sabri Cetinkunt, Ray-Long Tsai
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Milling contour error control using multilevel fuzzy controller

The International Journal of Advanced Manufacturing Technology, 2012
Machining contour error plays important roles in product quality. This paper presents an implementation of multilevel fuzzy controller in controlling contour errors while maintaining the desired feed rate of milling processes. The orthogonal global task frame was used to transform the tool positions from the Cartesian coordinate system to the ...
Phuong D. Ngo, Yung C. Shin
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Cutting Force Prediction of Disc Cam Contour Milling

Materials Science Forum, 2014
Cutting force equation was established for milling with flat end cutter as feeding in straight-line path by means of discretization method. The model of milling force was conducted based on the manufacturing character of cylindrical surface. The milling force is continual change in manufacturing process, it’s not only influenced by milling parameter ...
Pei Quan Guo, Fen Liu, Xiao Li Lai
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Research on Dynamic Performance of Milling System for Parallel Indexing Cam Contour Milling

Key Engineering Materials, 2008
Cutting force model for flat end milling and dynamic model of cam milling system were established based on the analysis of machining system for parallel indexing cam contour milling. Solution for dynamic performance of this kind of milling system has been introduced.
Pei Quan Guo, Shou Ren Wang, Jin Ping Shi, N. Fan, W. Wang   +4 more
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Improving the HSC Linear Motor Milling Machine Contouring Accuracy

Key Engineering Materials, 2013
In recent years, instrumentation circular profile tests have been specified to assess the contouring accuracy of CNC machine tools. Such an instrumentation type test is the HEIDENHAIN grid encoder system, which is particularly appropriate for dynamic measurements, especially at high feed rates.
Zoran Pandilov, Vladimir Dukovski
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Research of surface roughness at contour milling

2019
The article deals with the question of the difference in the roughness value from the work of the end part of end mills when processing curved contours and radius mates. The results of the experiment are analyzed, the theoretically formulated problem is identified in practice.
Malyshev, E.N., Kolesnikov, I.A.
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An interactive programming system for milling contours and pockets

The International Journal of Advanced Manufacturing Technology, 1990
The programming system discussed here is similar to APT in the definitions it uses. It can automatically generate CNC blocks for the machining of contours and pockets, bounded by linear and circular segments. The system uses simple trigonometry to analyse lines, circles and their intersections.
B. Satyanarayana, P. N. Rao, N. K. Tewari   +2 more
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Global uncut regions removal for efficient contour-parallel milling

The International Journal of Advanced Manufacturing Technology, 2013
To improve the efficiency of contour-parallel offset (CPO) roughing process, the tool path interval is usually set greater than the cutter radius. However, this will cause uncut regions in some corner area. Existing methods both in the literatures and commercial software remove the uncut regions by appending extra clear-up tool path to the local ...
Zhiwei Lin, Jianzhong Fu, Hongyao Shen, Wenfeng Gan   +3 more
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Computer numerical control for assuring the machining accuracy of contour milling

Robotics and Computer-Integrated Manufacturing, 1984
Abstract In this paper, a software technology for improving the machining accuracy in contour milling is discussed, in which the continuous path control is thoroughly investigated from the viewpoint of system synthesis, and the computer numerical control is effectively used.
S. Makinouchi, K. Yamagata
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Contouring on 2CL milling machines

1991
Abstract On NC milling machines with a control unit of type 2CL a tool moves in such a way that the direction of the rotation axis is constant. This kinematic constraint means that a tool movement may be uniquely defined by the movement of an arbitrarily chosen point on its axis of rotation. In addition, on 2CL milling machines movements
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