Design for manufacture and project management (incomplete)

Question 1

What is Quality Control?

Answer 1

Constant monitoring and checking of a manufacturing process to ensure quality

Question 2

What is Quality Assurance?

Answer 2

procedures and policies set before manufacturing which ensure products meet specific criteria

Question 3

What factors effect the recommended accuracy for a process?

Answer 3

production scale
manufacturing methods used
type of product being made and its application
skill level of available workers

Question 4

How is accuracy affected by Small Scale production?

Answer 4

hand tools require lots of skill to use accurately
measuring tools can be used by the maker and adjustments made to every piece
inaccuracies can add beauty and character to a workpiece
each piece can be given greater individual attention which may improve accuracy

Question 5

How is accuracy affected by Medium Scale production?

Answer 5

jigs and fixtures can be used to help improve consistency
high accuracy CNC equipment can be used
more sophisticated measuring tools can be used

Question 6

How is accuracy affected by Large Scale production?

Answer 6

High accuracy tools and automation is cost effective so improves accuracy
computerised measuring devices are used reducing need for high skill workers
moulds and dies are replaced regularly to ensure high quality is continuous

Question 7

What is Total Quality Management TQM?

Answer 7

the quality assurance of a system is improved by prioritising workforce feedback and communication

Question 8

What is Scrum manufacturing? (agile manufacturing)

Answer 8

teams of workers are given specific goals with short timescales they must meet
this allows manufacturing to quickly respond to changes and problems
regular meetings and team updates are used to respond to problems immediately

Question 9

What is 6 Sigma ?

Answer 9

systems should aim to be reduce defects to a likelihood of outside of 6 standard deviations from the mean of a normal distribution ( fewer than 3.4 in a million)
done using the DMAIC stages
Define the issues
Measure the extent of the issue
Analysis where the issue will occur
Improve with rectification procedures
Control the modified procedure using quality control