| MANUFACTURING OPERATION IN
PROCESS INSPECTION In process inspection is carried out
at several points within the production assembly lines. The inspection may be carried out
as :
- First article inspection
Prior to starting larger manufacturing series, it is checked that machine set - up
performance etc. are satisfactory. This check is carried out by Q. C. inspector
- Operator’s Inspection
For periodic and relatively uncomplicated operations the operator checks his own work.
Operator’s inspection is carried out according to specfic instructions and
procedures.
- Patrol Inspection
This kind of inspection is used when operator is unpractical. Patrol inspection is carried
out by authorized inspectors according to given directives.
- Part Delivery Inspection
Inspection of part deliveries is carried out as spot check or 100% by authorized
inspectors at fixed checkpoints.
Normally, the manufacturing department is reponsible for carring out
in-process inspection according to the inspection instructions. Administration and
follow-up is handled by the quality department.
Outgoing Inspection
Outgoing inspection is the last inspection of products ready for
delivery. Normally, this inspection should be carried out on all items. It consists of
visual inspection and Incircuit, Burn-in & functional test for which following main
criteria are decisive for approval :
- The product should satisfy specified requirements.
- In-process inspection has been carried out according to the
inspection plan. The final inspection is carried out and administered by the quality
control department.
Recording - Reporting
- Measurement records
Measurements records or other proofs that the product complies with the quality
requirements shall be prepared in connection with he inspection when :
- It is appropriate for returning information as a basis for
improvement and maintenance of the manufacturing process
- Especially agreed upon with the customer
Such measurement records are specified in the inspection instructions.
Identifications - Labeling
To the extent needed for distinguishing between inspected and not
inspected products, stamps, labels or routing cards are used as required. Usually there
are four kinds of inspection status.
- Inspected and approved
- Inspected and found nonconforming (Stopped - awaiting decision from material review
board)
- Not inspected
- Inspected - to be corrected / rejected.
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