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To do so requires an understanding of the product being manufactured and how inspection tasks can improve the quality control process. [3] Inspection can represent a significant percentage of an existing product's manufacturing cost. DFI may naturally be called for in redesign of a product to reduce that cost component when it is high.
Verification is intended to check that a product, service, or system meets a set of design specifications. [6] [7] In the development phase, verification procedures involve performing special tests to model or simulate a portion, or the entirety, of a product, service, or system, then performing a review or analysis of the modeling results.
Inspection is a major component of quality control, where physical product is examined visually (or the end results of a service are analyzed). Product inspectors will be provided with lists and descriptions of unacceptable product defects such as cracks or surface blemishes for example.
A First Article Inspection (FAI) is a production validation process for verifying that a new or modified production process produces conforming parts that meet the manufacturing specification detailed in technical or engineering drawings. Typically, a supplier performs the FAI and the purchaser reviews the report.
The history of testing, inspection and certification services spans back several centuries. In the late 19th century, following the advent of the Industrial Revolution and the considerable risks involved with high-pressure steam boilers, specialized institutions emerged across Europe which carried out periodical inspections of such vessels to assess their overall condition as a precautionary ...
Inspection in manufacturing is conducting inspection during the production process. This approach of inspection helps to control the quality of products by helping to fix the sources of defects immediately after they are detected, and it is useful for any factory that wants to improve productivity , reduce defect rates, and reduce re-work and ...
To ensure impartiality, reporting should be performed by the accounting department. [11] Additionally, to make it more understandable to a wider audience, the total cost of quality should be reported as a percent of sales, cost of sales, cost of manufacturing, or for firms in the service industry, cost of operations.
Quality related in-process inspection/verification is an essential part of quality control in manufacturing. This includes measuring, examining, testing, or gauging one or more characteristics of a product or process and comparing the results with specified requirements to determine whether is the requirements are met for each characteristic.