Section 1 Flashcards
Define automation
The use of machines to do a task automatically
What are the advantages of automation?
-Robots can increase the speed of production as they can work faster than humans and don’t need to rest
-Robots can work with high accuracy as they complete the same task consistently whereas humans make mistakes
-Robots can be used in dangerous situations that would be unsafe for humans
What are the disadvantages of automation?
-Robots can replace human workers meaning there are fewer jobs
-Robots are expensive to buy
-Robots can’t carry out tasks that require human judgement
What is the point of tracking the location of devices in a factory?
-Monitoring stock levels of components and raw materials
-Monitoring the movement of products around the factory
-Monitoring the number of finished products in stock
Define FMS
Flexible manufacturing systems
What is an FMS?
-FMS consists of a set of different machines which carry out different stages of production
-The machines are easy to adapt and it is straightforward and easy to change the system if the design of the product is altered
-These systems are easy to alter if the level of production changes such as extra machines can be added to boost production
What is lean manufacturing?
-Lean manufacturing aims to minimise the amount of resources used and waste produced
-The aim is to reduce cost and maximise efficiency
-This happens by adopting a JIT system
Define JIT
Just in time
What is a Just in time system?
Where materials and components are delivered as they’re needed and used as soon as they’re delivered
What are the advantages of JIT?
-It reduces the amount of space needed for storage of materials and finished products
-Less money tied up in materials that aren’t being used
What are the disadvantages of JIT?
The system relies on materials and components being delivered on time and being fault free as there isn’t time to return faulty products. If these don’t happen money is lost
What does CAD stand for?
Computer aided design
What is CAD?
-It involves using software to design products on a computer
-CAD allows you to make 2D or 3D designs
-Examples are Solidworks, Onshape and 2D Design
What does CAM stand for?
Computer aided manufacture
What is CAM?
-The process of manufacturing products with the help of computers
-CAM machines are computer numerically controlled (CNC)
What are examples of subtraction CAM machines?
-Milling machines
-Laser cutters
-CNC routers
What are examples of addition CAM machines?
3D printers
What are the advantages to CAD and CAM software?
-They save on shipping costs as product designs can be sent electronically
-They save on labour costs as companies can have their products manufactured in one country and designed in another
What are the drawbacks to CAD and CAM?
-Viruses, software problems and file corruption will slow down production
How does CAD software meet the datum edge?
-CAD software works out the x/y/z coordinates on each drawing
-The point they meet is the datum edge
How do CAM machines carry out subtraction on a material?
-They remove material from a larger piece to form a product
-They do this by following the coordinates from the CAD software and cutting the material away
How do CAM machines carry out addition on a material?
-Layers of material are built up to create the shape of the product
-Using the coordinates from the CAD software
What does it mean that CAM machines are CNC?
-They can follow the x,y,z coordinates and move the tools to cut of build on the design
What does CNC mean?
Computer numerically controlled
What does sustainability mean?
Not causing permanent damage to the environment and not using up finite resources
What is a finite resource?
One that will run out eventually