WOKÓŁ EPIKUREIZMU I LATHE BIOSAS KAZIMIERZA PAWŁOWSKIEGO
نویسندگان
چکیده
منابع مشابه
Analysis of Lathe Spindle Using Ansys
The machine tool spindle provides the relative motion between the cutting tool and the workpiece which is necessary to perform a material removal operation. In turning, it is the physical link between the machine tool structure and the workpiece, while in processes like milling, drilling or grinding, it links the structure and the cutting tool. This work deals with design and analysis of Lathe ...
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A knowledge-based process-planning system for generating workplans for idealized lathe CNC machines is discussed. It transforms CAD-like diagrams of rotational-symmetric workpieces into abstract NC programs. To simplify development and evolution , declarative representations are used for all processing stages and steps, including a qualitative simulation of lathe turning. The version presented ...
متن کاملActive Control of Machine-tool Vibration in a Lathe
In the turning operation the relative dynamic motion between cutting tool and workpiece, or vibration is a frequent problem, which affects the result of the machining, in particular the surface finish. The tool life is also influenced by the vibrations. When the working environment is considered, noise is frequently introduced by dynamic motion between the cutting tool and the workpiece. By pro...
متن کاملSimulation of Temperature Distributions of CNC Lathe Headstock Assembly
This paper mainly analyses the issues of the temperature distributions of the headstock assembly of a CNC lathe incorporating contact behavior. The thermal deformation is due to the heat generation in the bearings, chucking cylinder and motor. Experiments were carried out on a slant bed 2 axis CNC lathe for a period of 14 hours under a specified load cycle. Since heat generated in the machine t...
متن کاملHigh-accuracy Positioning of Lathe Servo System Using Fuzzy Controllers Based on Variable Universe of Discourse
A novel fuzzy controller is proposed here to improve the positioning precision of servo system of CNC lathes. To utilize the high–accuracy potential of the VUD fuzzy controller, a grating–ruler was used as a sensor to measure the displacement of work pieces. Designing the VUD fuzzy controller involved five steps, i.e., setting up universes of discourse and parameters, selecting membership funct...
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ژورنال
عنوان ژورنال: Colloquia Litteraria
سال: 2009
ISSN: 1896-3455
DOI: 10.21697/cl.2010.1.08