quality control

Question 1

quality control

Answer 1

• monitoring, checking and testing of QA tolerance conformity throughout production
• specified by the strict guidance of client requirements

Question 2

compliance checked by

Answer 2

• visual checks
• chemical analysis of samples
• colour matching
• use of digital measuring devices
• interval sample testing

Question 3

tolerance

Answer 3

• the acceptable level of accuracy in a product/part
• depends on material, parts, size and function
• fine tolerances are particularly important when parts are interchangeable
• components not meeting tolerance are rejected

Question 4

go/no go gauges

Answer 4

• check single measurement for tolerance range (pass or fail)
• min and max dimensions are on it so easy to use
• quick to use

Question 5

laser or probe scanning and measuring

Answer 5

• probe scanners check predetermined measurements (highly accurate)
• non-contact lasers scan thousands of readings
• can be used to check tooling accuracy for QA

Question 6

digital measuring

Answer 6

• provide a read out of the dimension measured
• can be used in a range of situations
• vernier callipers are generally used for external, internal and depth measurements with 0.002mm accuracy
• the screw thread utilised in a micrometer facilities has accuracy of 0.01

Question 7

non destructive testing

Answer 7

• carried out on products rather than material samples
• the product is not destroyed during testing
• used to find faults in the material
• e.g. using ultrasound and x-rays