CAD and manufacture
- Created by: rubyboast
- Created on: 07-04-18 21:05
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- CAD and manufacture
- CAD = computer- aided design
- can create, modify and communicate product ideas
- advantages
- accuracy
- repetition
- less human intervention and reduced labour costs
- saving of planning and development time - more time for production
- CAD in school
- make templates to draw around on materials for cutting
- improve the accuracy of your drawings
- create numerical data needed for the use of CNC machinery
- CAD can be used to:
- calculate nutritional profile of a food product
- work out manufacturing costs and suggest a retail price
- scale up recipes fror commercial manufacture
- can be used for mathematical and engineering such as stress analysis
- disadvantages
- difficulties of ensuring data is secure
- risk of data corruption
- stress analysis = an engineering discipline used to determine whether a material or object can withstand forces
- disadvantages
- rapid protoyping
- rapid prototyping = using a computer to transfer drawings into 3D for model-making
- stereolithography (STL)
- rapid process produces realistic models and working prototypes
- a CAD/CAM laser draws outlines of the product onto liquid resin
- where the laser touches the resin, it solidifies, building a 3D prototype identical to the drawing
- rapid prototyping at school
- two main systems
- powder system - involves 3D printing
- each layer is printed onto a bed of powder (Z-Corp machine)
- cheaper
- prototypes are not as durable
- extrudes ABS images
- achieved using a 3D prototyping machine
- powder system - involves 3D printing
- requires a high level of skill in CAD, and prototypes cannot be altered easily without being completely remade
- two main systems
- CNC = computer numerical control
- CAM = computer-aided manufacture
- CAD = computer- aided design
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