Материал: 2177
Text 5. CAM
(Computer Aided Manufacturing)
Computer aided Manufacturing(CAM) is assistance of computer in manufacturing planning and processes like planning different operations to be done on product, sequencing all the operations and finally control
Сtems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems. These systems differ from older forms of numerical control (NC) in that geometrical data is encoded mechanically. Since both CAD and CAM use computer-based methods for en-
the machine parameters like Feed, Speed, Depth of cut etc.
CAM uses CAD data to control automated machinery. CAM sys-
coding geometrical data, it is possible for the processes of design and |
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manufacture to be highly integrated. Computer-aided design and manu- |
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facturing systems are commonly referred to as CAD/CAM |
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иCAM uses CAD data to control automated machinery. CAM sys- |
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tems are associated with computer numerical control (CNC) or direct |
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numerical control (DNC) systems. These systems differ from older forms |
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of numerical control (NC) in that geometrical data is encoded mechani- |
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cally. Sinceбboth CAD and CAM use computer-based methods for en- |
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coding geometrical data, it is possible for the processes of design and |
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manufacture to be highly integrated. Computer-aided design and manu- |
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facturing systems are commonly referred to as CAD/CAM |
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Benefits of CAM: |
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Improve productivity. |
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Lead time reduction. |
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Reduce engineering personal requirements. |
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4) |
Improve accuracy of product. |
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5) |
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Reduce training time for routine drafting tasks and NC part pro- |
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gramming. |
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Fewer errors in NC part programming. |
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Provide the potential of using more existing parts and tooling. |
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Helps ensure design is appropriate to existing manufacturing tech- |
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niques. |
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Saves material and machining time by optimizing algorithm. |
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Provides operational results on the status of work in progress. |
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11) |
Makes the management of design personnel on project more effec- |
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tive. |
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Assistance in inspection of complicated parts. |
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13) Better communication interfaces and greater understanding among engineers, designers, drafters, management and different project groups.
Short-Comings:
CAM packages could not, and still cannot, reason as a machinist can. They could not optimize toolpaths to the extent required of mass Сproduction. Users would select the type of tool, machining process and paths to be used. While an engineer may have a working knowledge of g-
code programming, small optimization and wear issues compound over time. Mass-produced items that require machining are often initially created through casting or some other non-machine method. This enables handи-written, short, and highly optimized g-code that could not be produced in a CAM package.
There is a shortage of young, skilled machinists entering the workforce able to perform at the extremes of manufacturing; high precision and mass бproduction. As CAM software and machines become more complicated, the skills required of a machinist or machine operator advance to approach that of a computer programmer and engineer rather than eliminating the CNC machinist from the workforce.
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Би лиографический список |
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1. |
Баракова, М.Я. АГибкие автоматизированные производства. Пособие по |
обучению чтению на английском языке : учеб. пособие / М.Я. Баракова, |
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Г.А. Мкртчян, Н.И. Наумова; под ред. М.Б. Генералова. – М. : Высш. шк., 1990. – |
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140 с. |
И |
2. |
Основы автоматизации машиностроительного производства : учеб. для |
машиностроит. спец. вузов / Е.Р. Ковальчук, М.Г. Косов, В.Г. Митрофанов и др.; |
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под ред. Ю.М. Соломенцева. – 2-е изд., испр. – М. : Высш. шк., 1999. – 312 с. |
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3. |
Marion Grussendorf. English for Presentations. Express series. – Oxford : |
Oxford University Press, 2011. – 78 p.
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