Design for manufacturer and project management

Question 1

Quality assurance procedures to ensure accuracy preproduction

Answer 1

CAD simulations
Working drawings with tolerances
Mockup models and mechanical systems
Client feedback
Peer review

Question 2

Control check examples

Answer 2

Visual aesthetic checks
Dimension checks
Machine tooling and alignment checks
Assembly checks of multiple components
Quality checks of manufactured finished

Question 3

Quality assurance

Answer 3

The procedures put in place to reduce waste and ensure manufactured products are produced accurately within a set of acceptable tolerances

Question 4

Examples of quality assurance policies

Answer 4

Settings specific temperature ranges for product moulding to ensure effective filling of cavities and speeds of calling.
Setting rigid maintenance schedules for machinery to ensure cutters are machining within tolerances.
Only sourcing materials and components from supplies that hold the iso9001 quality management standard

Question 5

Six sigma

Answer 5

Hey, set of techniques and tools for process improvement which is designed to minimise defects 23.4 in every mill. It requires the implementation of the DMAIC procedure.

Question 6

Stages of six sigma

Answer 6

Define the issue.
Measure the extent of the issue.
Analyse where the issue occurs.
Improve the issue.
Control the procedures implemented to improve the issue

Question 7

Waste types

Answer 7

Transport
Inventory
Movement
Waiting
Overproduction
Overprocessing
Defects

Question 8

Material check examples

Answer 8

Simple visual checks on the materials and data sheet supplied.
Chemical analysis on small volumes of the material checking for levels of moisture or specific elements that may affect the product.
Colours matching may also be required for polymer pigments or paint finishes

Question 9

Digital measuring devices

Answer 9

Veneer calipers
Micrometre

Question 10

What are veneer calipers used for?

Answer 10

Measure external internal and depth measurements

Question 11

What are micrometers used for?

Answer 11

Used on small components high accuracy then the caliper limited to measuring external dimensions usually diameters only

Question 12

Coordinate measuring machinery

Answer 12

The use of a probe scanner that allows a manufacturer to check a range of pre-defined measurements on a finished component. The accuracy is very high and can be automatically compared against a 3-D cad model and logged on a computer system.