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Titlebook: CNC Part Programming Workbook; Bernard Hodges Textbook 1994Latest edition Macmillan Publishers Limited 1994 computer-aided engineering (CA

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发表于 2025-3-21 18:42:07 | 显示全部楼层 |阅读模式
书目名称CNC Part Programming Workbook
编辑Bernard Hodges
视频video
图书封面Titlebook: CNC Part Programming Workbook;  Bernard Hodges Textbook 1994Latest edition Macmillan Publishers Limited 1994 computer-aided engineering (CA
描述`A good text in a logical order, plus useful projects. Covers main points without lengthy reading.‘ - College LecturerOne of the five workbooks which, together with the core text ‘Computer-Aided Engineering‘, make up our publishing package for the City and Guilds Computer-aided Engineering 230 scheme and equivalent BTEC courses. The workbooks can be used independently of each other and of the core text. CNC (computerised numerical control) systems are essential elements in many industrial processes. The CNC Part Programming Workbook contains 15 learning assignments, each with a number of carefully chosen and structured tasks which will develop the skills needed to work from engineering drawings of components which are to be machined and to produce part programs which incorporate the various commands and functions of a CNC system. There are also three realistic work-based projects which bring together various aspects covered in the workbook. All necessary topics are included from program planning and writing to editing and proving. Supported by many illustrations, the assignments in the workbook will give students and trainees the necessary range of practical experiences to acquire
出版日期Textbook 1994Latest edition
关键词computer-aided engineering (CAE); computer-aided manufacturing (CAM); machining; programming
版次1
doihttps://doi.org/10.1007/978-1-349-12683-5
copyrightMacmillan Publishers Limited 1994
The information of publication is updating

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发表于 2025-3-21 23:13:41 | 显示全部楼层
Work holding and tooling, component and therefore to the clamping/holding devices. As the programmer, it is part of your task to decide what type of work-holding device is required for a particular operation. The following conditions must be met:
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Toolpath calculations,der to machine the required shape. These calculations may be needed to determine the intersect points of arcs and lines, arc centres and tangency points of lines on arcs or circles, and so on. If you are going to write programs manually, you will need a good knowledge of mathematics, trigonometry an
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Using a drawing package,, tangents between circles, arcs through a point tangential to a line and so on. The main difference is in the way that you construct the geometry, since you only need to draw details like the profile shape or the hole positions. You do not have to incorporate features like hatching lines, dimension
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Machining pockets,ate on a pull-down menu system which requires the name of the previously defined pocket shape and the name of each ‘island’ within the pocket. Or a pocket clearance routine within the software may be used to define the shape of the pocket, including ‘islands’. In either case, the data entered is use
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Complex profile with a spline,-ordinates are tabulated at the top left-hand corner of the drawing, thus avoiding a mass of dimension lines. A spline (a series of points through which a smooth curve is drawn) is shown along the top edge of the component. Consult your manual and research the commands that your CAD/CAM system uses
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