Processes and Fixings Flashcards
What does CIM stand for?
Computer Integrated Manufacturing
What are some uses of CIM?
Computer aided design
Prototype manufacture
Quality control
Product assembly
Automatic updating of logs
What does CAM involve?
Downloading completed CAD drawings to machines that will cut and shape materials.
Describe the process of laser-cutting?
It uses a high energy laser beam to cut or vaporise materials.
Gas or compressed air is used to blow away any excess for a clean edge.
Describe the use of routing?
Both 2D and 3D CAD drawings can be downloaded.
Cuts sheet material too thick for a laser
Cuts wood, Styrofoam or high density modelling foam.
Describe the process of milling?
Drills holes, cuts slots, shape surfaces or edges.
Some can do 5 axis cutting
Modern machines can automatically change tools.
Automatic coolant/lubricant
Describe the process of turning?
Uses a lathe to reduce the diameter and length, using a metal or plastic rod. It can cut threads and bore holes.
Describe the process of plotter cutting?
Uses x and v coordinates to cut what has been drawn on the software.
Cuts thin sheet material.
Has an automatic material feed.
Describe the process of a 3D printer?
Uses 3D CAD designs and converts to a readable format
Extrudes heated polymer
Builds up in layers
Limited by time
Advantages of CAM?
Fast and accurate
Machines can run constantly
Disadvantages of CAM?
Expensive
Needs skilled workforce
Name four manufacturing systems.
Modular/cell production
Just in Time (JIT)
Quick response manufacturing (QRM)
Flexible manufacturing systems
Describe CIM?
Uses computers to enable planning and control of the production process.
What is data analysis and what benefits does it have?
It is regular checks within an integrated manufacturing system, meaning constant feedback.
It monitors performance, eliminates downtime, increases productivity, makes improvements.
Advantages of CAD?
Ideas can be drawn and developed quickly
Designs can be viewed from all angles
Disadvantages of CAD?
Expensive to set up
Needs a skilled workforce
Difficult to keep up with developing technology
What is computer aided quality control and what are its benefits?
Integrates quality control and quality assurance strategies throughout production.
It reduces human error, enables efficient inspection and testing, generates feedback data.
What is modular/cell production?
It divides work into teams called cells or modules - each cell works to achieve quality, efficiency and to reduce waste.
Used to manufacture cars and electronics.
What is a jig?
A manufacturing tool that guides and supports the component in order to produce the highest level of accuracy.
What is Just In Time?
Computer systems to manage and track orders - as an order is processed, scheduling software assigns time for the job which gives accurate lead times.
- Specific parts are ordered to arrive on time
Describe nuts and bolts
Can be used for temporary or permanent fixings.
Variety of head shapes, including countersunk.
Used in construction and manufacturing furniture etc.
Describe wood screws
Different lengths, widths and sizes
Screw heads are often countersunk so that the screw hole can be filled or plugged
Quick to install
Describe coach bolts
Used to build wooden structures such as summer houses, benches and sheds
Has a square section just under the head of the bolt - to prevent the bolt from spinning.
Must have a pre-drilled hole.
Once installed, impossible to remove from the head.
What is a modesty block?
Preformed blocks that are hidden inside the product once installed. They are used to create permanent 90 degree angles when joining boards.
Easy to use
Describe knock down fittings
Can be used to join dissimilar materials
Collapsible when wanted for things like flat pack furniture and fitted kitchens
Easy to install
