What is inspection? Discuss its different aspects.

Ans. Inspection is the process of checking and measuring each sampled product at its finished form during the production process and rejecting or accepting the whole lot of goods on the basis of results of sampled goods measurements. It is observed in India that an average manufacturing company is operating at the cost of quality of about 25-35% of the turnover. The inspection’s costs are incurred on re-checking, spotting and inspecting errors in a process or product. You have to inspect the products or services for specifications before providing them to other units. Inspection cost is a secondary element of the cost of quality, which includes the costs associated with maintaining quality control, is the cost of calibration, the cost of tooling and the cost associated with policy system. In India, inspection activities are pursued by companies who have major problems with product and service quality. The inspection does not build quality into the product so it is wasteful. It is so unusual that many large companies have very strong quality control and quality assurance sections. One thing we must remember that no amount of inspection will increase quality, only prevention is the key. ]

See Also : Method and Technique of Manufacturing 

Aspects of inspections:
Stage inspection: this involves inspection of the product after every operation where important quality characteristics are developed. This ensures that the defective product is appeared at the earliest stage, due to this avoiding the expenditure on the further processing of defective components.
Final inspection: in an ideal condition, when the manufacturing operations, including process controls, are carefully planned, and supervised, there may be no necessity for final inspection. But this occurs rarely, because men are capable of making mistakes, machine can be erratic and process control can never be fool proof. Final inspection in addition to being an appraisal function includes a decision on the acceptance of the product