Production and Planning Methods Flashcards
Production Methods
One-off,
Batch,
Mass
Production Methods - One-off
Single products,
Every product is unique,
Very labour intensive,
Highly skilled workers,
Flexible factory/workshop,
Expensive products
Production Methods - Batch
Groups of products,
Similarly within groups,
Quite labour intensive,
Skilled workers,
Flexible factory/workshop,
Moderate product prices
Production Methods - Mass
Many identical products,
Automated production,
Low skill workers,
Expensive set-up costs,
Low running costs,
Inflexible factory,
Cheap products,
Higher unemployment
Methods to Improve Production
CAD/CAM,
CNC Machining,
Gantt and flow charts,
Jigs and fixtures,
Just-in-time production,
Standard components
CAD/CAM (Computing Aided Design / Manufacturing)
CNC machines will accurately and repeatedly manufacture the 3D models from the design software.
CAD/CAM - Advantages
Don’t have to be on the same site,
Efficient so fewer staff required,
Run simulations on CAD models,
Connects to stock control
CAD/CAM Disadvantages
Very expensive to set up,
Staff need to be trained,
Reduces the number of skilled workers in society
Jig
A device which holds or guides a tool, improving accuracy and repeatability.
Fixture
A device which holds a part in place so it can be worked on. Improves accuracy and repeatability.
Standard Components
Nuts and bolts,
Motors,
Servos,
Power supplies,
Filters
Standard Components - Advantages
Can be manufactured in large quantities, making them cheaper to buy.
Manufacturers can focus on their own product rather than designing every component.
Replacements can be sourced easily.
No need to buy equipment or train staff to manufacture components.
Standard Components - Disadvantages
They may restrict the design somewhat.
Manufacturer must deal with a third party supplier.
There may be delivery problems that the manufacturer can’t control.
There may be quality problems that the manufacturer can’t control.
Gantt Charts
Gantt charts show tasks, duration, deadlines and workers.
Allow manufacturers to manage their resources.
Show task dependencies.
Flow Charts
Flow charts show events, decisions and processes.