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Process Control Techniques for High-Volume Production
book

Process Control Techniques for High-Volume Production

by M. Kemal Atesmen
October 2016
Intermediate to advanced content levelIntermediate to advanced
149 pages
3h 17m
English
CRC Press
Content preview from Process Control Techniques for High-Volume Production

8

PROCESS CONTROL FOR ATTRIBUTES

P, NP, C, and U Charts

Attribute type data has noncontinuous values, namely “go” or “no-go,” “conforms” or “nonconforms,” “pass” or “fail,” “on time” or “not on time,” “small, medium, or large,” and so forth. For some inspections such as contamination, scratches, chip, and so forth, it might be difficult to define the difference between a conforming and a nonconforming or defective product unit, especially when an inspector’s judgment is involved. Precise operational specifications for attribute characteristics are a must. Thorough training of inspectors is also required. Attribute data versus time can be collected and analyzed using different types of attribute control charts. There are four main types of control ...

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Publisher Resources

ISBN: 9781315350110