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17 Cards in this Set
- Front
- Back
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What do CAD systems reduce the need for?
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Traditional large and labour intensive drawing offices.
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What are advantages of being able to transfer CAD files internationally?
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The files can be sent to regions where manufacturing is inexpensive.
Designer can work from anywhere and confer with others globally. |
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Why is it good to use CAD and CAM together?
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Using CAM allows the CAD machines to connect to automated systems such as a CNC lathe's or laser cutters.
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How is speed increased when using CAD?
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The designs can be altered and copied over and over again so new designs do not have to be made each time.
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How do client and company relations benefit whenusing CAD?
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Information and alterations can be transferred from person to person, ensuring the outcome is exactly what is required.
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What does RPT stand for?
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Rapid Prototyping
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Name 6 reasons why we use RPT.
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To test the following before final production: -
Shape Feel Performance Ergonomics Aesthetics Texture |
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What IS RPT?
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Layer by layer fabrication of a part directly from a CAD model.
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Give 3 things that RPT does.
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Allows traditional modelling methods to be done in just a few hours.
Shortens design & development cycles. Enhances design quality & accuracy. |
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Name 4 materials used in RPT.
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RPT uses:
Polycarbonate ABS Metals Ceramics |
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What is Stereolithography?
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An additive manufacturing process using a vat of resin & a UV laser to build layer by layer.
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What are SLA RESINS?
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(SLA) Resins are liquid UV-curable photopolymers used in the sterolithography process.
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What is RPT manufacturing?
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Automated manufacture of products directly from 3D CAD.
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Name 2 things which prototyping is useful for.
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Useful for testing design & performance.
Dramatically improves communication as 3D objects are easy to understand in CAD drawings. |
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Breifly outline Virtual Modelling and Testing
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The ability to represent an accurate 3D model of a product or component on a computer in a 'virtual world' without having to build a model.
Great advantage to designer and significantly reduces development times and costs. |
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What is the virtual modelling function named 'bi-directional parametric assosciation'?
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Bi-directional parametric association aids modifications by causing the slightest change to a design feature to atuomatically change any other design feature linked with it
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Give a feature/use of Computer-aided engineering (CAE)
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CAE utilises computer simulation to analyse designs. It can determine, for example, wether assemblies fit together to the required tolerance and whether there is sufficient clearance between moving components.
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