INSPECTION
Inspection is the most common method of attaining standardisation, uniformity and quality of workmanship. It is the cost art of controlling the product quality after comparison with the established standards and specifications. It is the function of quality control. If the said item does not fall within the zone of acceptability it will be rejected and corrective measure will be applied to see that the items in future conform to specified standards.
Inspection is an indispensable tool of modern manufacturing process. It helps to control quality, reduces manufacturing costs, eliminate scrap losses and assignable causes of defective work.
Objectives of Inspection
(1) To collect information regarding the performance of the product with established standards for the use of engineering production, purchasing and quality control etc.
(2) To sort out poor quality of manufactured product and thus to maintain standards.
(3) To establish and increase the reputation by protecting customers from receiving poor quality products.
(4) Detect source of weakness and failure in the finished products and thus check the work of designer.
Purpose of Inspection
(1) To distinguish good lots from bad lots
(2) To distinguish good pieces from bad pieces.
(3) To determine if the process is changing.
(4) To determine if the process is approaching the specification limits.
(5) To rate quality of product.
(6) To rate accuracy of inspectors.
(7) To measure the precision of the measuring instrument.
(8) To secure products – design information.
(9) To measure process capability.
