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Year 9 Schema Unit 7 Electronics MP3 Player - Coggle Diagram
Year 9 Schema Unit 7 Electronics MP3 Player
KTC 9.1 Tolerance
Engineered drawings
3rd angle orthographic - dimensions
Manufacturing
Accuracy
+/-0.2 mm
Some parts need to be very accurate to work
TOLERANCE. This is the amount they can be too big or small and still be usable.
COST to make is higher
the more accurate/ reliable machinery costs more to buy
the more skilled the workers have to be
More products have to be thrown away because they are inaccurate
KTC 9.3 Product Disassembly
Negatives and positives of the product
DFMA
How is it made?
What makes a product easier to make?
Why do clients want a product to be easy to make?
Use appropriate tools and instruments to disassemble
Analyse the disassembled product in detail
components and their functions
assembly methods
materials
production methods
maintenance considerations
Use of manufacturers manuals or other published sources
ACCESS FM
KTC 9.4 Standard Components
Electronics standard components
Speakers
Batteries
capacitors
Resistors
LED
commonly used parts that manufacturers buy in instead of making themselves.
Examples
screws
Nuts
Bolts
Means a manufacturer can concentrate on getting standard components as accurate as possible
Means each product does not require factories to make simple parts
Allows parts to be readily replaced or swapped out if required
KTC 9.5 Manufacturing processes
wasting
Sawing
□ Drilling
□ Filing
□ Laser-cutting
shaping
forming
joining
Mechanical fastening
nuts,bolts and screws
self-tapping screws
finishing
painting
Assembly
KTC 9.6 Electronics
Components
functions
Symbols
Diagrams
circuit
wiring
Bread boarding
9.2 Legislation
British Standards
BSI Kitemark
United Kingdom Conformity Assessed (UKCA)
International Standards
International Standard Organisation
CE Mark
Quality standards
Signs and symbols