Results 221 to 230 of about 3,767 (252)

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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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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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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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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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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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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Precision trajectory generation for CNC milling of arbitrary contours and surfaces

International Journal of Machine Tools and Manufacture, 1994
Abstract In an effort to improve cutter path tracking for high precision milling of spatial contours and sculptured surfaces, a new CNC trajectory generation approach is presented. Linking the CAD part design with control motion execution, command generation has traditionally been limited to the issues of coordinated motion kinematics and ...
Daniel C.H. Yang, Alex D. Golub
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Backup roll contour of a SmartCrown tandem cold rolling mill

Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material, 2008
Abstract SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700 mm tandem cold rolling mills at Wuhan Iron & Steel (Group) Corporation (WISCO). After tracing and testing, the application of the conventional crown backup roll matching the SmartCrown work roll of the production mill led ...
Guanghui Yang, Jianguo Cao, Jie Zhang, Shenghui Jia, Renwei Tan   +4 more
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Contour error-based optimization of the end-effector pose of a 6 degree-of-freedom serial robot in milling operation

Robotics and Computer-Integrated Manufacturing, 2022
Huan Zhao, Jixiang Yang, Han Ding
exaly  

Improving the accuracy of contour machining with end mills

Вестник МГТУ Станкин, 2020
V.A. Timiryazev, A.G. Datsko, V.A. Khazanov   +2 more
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