Results 271 to 280 of about 33,101 (294)
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NC machining of arbitrarily shaped pockets
Computer-Aided Design, 1978Abstract Machining mechanical parts requires a great deal of area cleaning, i.e. cutting away all material within given boundaries. This paper describes a fast algorithm, implemented in the SAAB-Adapt processor, to compute the necessary cutter paths for machining arbitrarily shaped areas (pockets) bounded by straight lines and arcs.
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NC Machine Position Accuracy Testing and NC System Error Compensation Analysis
Applied Mechanics and Materials, 2011NC machine plays an irreplaceable role in the modern manufacturing because of its high machining processing accuracy, quality stable, flexibility. Through using the Renishaw ML10 laser interferometer detect the positioning accuracy and repositioning accuracy of X axis and Z axis of the HTC20 series of NC machine tools. According to the detection result
Ke Zhang +4 more
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Workpiece Measurements on NC(CNC)-machine Tools: Machine Configurations/Application Examples
IFAC Proceedings Volumes, 1979Abstract The adaption of a 3-D probe system to numerically controlled machine tools enables a measurement of workpiece in machining positions. By measurements before, during and after machining, errors can either be eliminated or recognized well in advance. The selection and adaption of a suitable 3-D probe will be described.
T. Pfeifer, A. Fürst
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Continuous path verification in multi-axis NC-machining
Proceedings of the twentieth annual symposium on Computational geometry, 2004We introduce a new approach to the problem of collision detection between a rotating milling-cutter of an NC-machine and a model of a solid workpiece, as the rotating cutter continuously moves near the workpiece. Having five degrees of motion freedom, this problem is hard to solve exactly and we approximate the motion of the tool by a sequence of sub ...
Wein, Ron +3 more
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Off-line optimization on NC machining based on virtual machining
The International Journal of Advanced Manufacturing Technology, 2007Virtual machining, based-on the model of a machining system, aims to simulate, evaluate and optimize the actual machining process with high sense of reality. It provides digital off-line optimization tools for NC machining. Taking advantage of virtual machining used in machining process simulation, one can build the framework of optimization system on ...
J. G. Li, H. Zhao, Y. X. Yao, C. Q. Liu
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NC Machine Tool Control System Design
Advanced Materials Research, 2013To adapt to the CNC machine high precision, high quality, high reliability requirements,This article designed NC machine tool control system with application of Lon-works technology. The hardware design method of input module and sensor interface, output module and the stepper motor interface in the system are introduced.
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Fixtureless NC machining for rapid prototyping
1998Recent developments in stereolithography and other related processes have challenged the role of cutting machine tools in producing prototype parts. The newer technologies propose faster turnaround at lower costs per part, but the initial expenditure and material costs for these processes are high and the variety of materials is limited.
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Thermal Behaviour of NC Machine Tools
1974Thermal influences can deteriorate the working accuracy of NC machines. The generated heat influences the measuring system and the machine. The loss of accuracy of a screw spindle with stepping motor used as feed drive in a turret lathe has been tested.
G. Spur, P. de Haas
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The Proceedings of The Manufacturing & Machine Tool Conference, 2006
Keiichi SHIRASE +3 more
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Keiichi SHIRASE +3 more
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