5. CAD, CAM, production techniques Flashcards
What are the 5 advantages of CAD?
- designs can be created, saved and edited easily, saving time
- designs or parts of designs can be easily copied or repeated
- designs can be worked on by remote teams simultaneously
- CAD is very accurate
- CAD software can process complex stress testing
What are 4 disadvantages of CAD?
- CAD software is complex to learn
- software can be very expensive
- compatibility issues with software
- security issues: risk of data being corrupted or hacked
What is CAD?
computer aided design
What is CAM?
computer aided manufacturer
What is CNC?
computer numerical control
What are 5 advantages of CAM?
- quick: speed of production can be increased
- consistency: all parts manufactured are all the same
- accuracy: accuracy can be greatly improved using CAM
- less mistakes: there is no human error unless pre-programmed
- cost savings: workforce can be reduced
What are 4 disadvantages of CAM?
- Training is required to operate CAM
- High initial outlay for machines
- Production stoppage - if the machines break down, the production would stop
- Social issues: areas can decline as human jobs are taken
What are 2 examples of CAD software?
- 2D Design
- SolidWorks
What are 4 examples of CAM?
- laser cutter
- robots
- barcode scanner
- AGV - automated guided vehicle
What are flexible manufacturing systems?
it involves an assembly of automated machines commonly used on short-run batch production lines and where the products frequently change
What is lean manufacturing?
trying to manufacture products just before they are required, to eliminate areas of waste including:
- overproduction
- waiting
- transportation
- inappropriate processing
- excessive inventory
- unnecessary motion
- defects
What is just in time production (JIT)?
- where items are created as they are demanded
- no surplus stock of raw material, component or finished parts are kept
What are the advantages of JIT production?
- no warehousing costs
- order secured before outlay on parts is required
- stock does not become obsolete, damaged or deteriorated
What are the disadvantages of JIT production?
- reliant on a high quality supply chain
- stock is not available immediately off-the-shelf
- fewer benefits from bulk purchasing
What is EPOS?
electronic point of sale (barcodes)
