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CAD/CAM: Computer-Aided Design and Manufacturing by JR. - Department of Industrial Engineering, Lehigh University Emory W. Zimmers,, Mikell P. Groover

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Chapter 19Computer-Aided Quality Control

19.1 Introduction

The quality control (QC) function has traditionally been performed using manual inspection methods and statistical sampling procedures. Manual inspection is generally a time-consuming procedure which involves precise, yet monotonous work. If often requires that parts be removed from the vicinity of the production machines to a separate inspection area. This causes delays and often constitutes a bottleneck in the manufacturing schedule.

Inherent in the use of statistical sampling procedures is acknowledgment of the risk that some defective parts will slip through. Indeed, statistical quality control attempts to guarantee that a certain expected or average fraction defect rate will be ...

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