Synopsis
Few manufacturing processes are so standardised, automated, and rigidly controlled that the product can be guaranteed perfect over large-scale mass production. If structures are to be constructed to meet design requirements and materials are to be used economically and efficiently, some form of testing of the finished product will almost certainly be necessary. Whenever production depends on human skills, human errors creep in and faulty products occasionally occur. With some small products, samples of production can be extracted and physically tested to destruction without great cost losses; proof tests can be done on a pressure vessel, or vibration testing can be carried out to simulate service conditions, but on many large structures such sampling or proof testing is virtually impossible. Also, if one postulates occasional human errors, sampling will not eliminate the defective items and on many critical components and structures 100 % inspection is often desirable. Non-destructive testing or inspection (NOT or NOI) are the terms used to describe a wide range of testing techniques designed to produce information about the condition of a specimen without doing any damage to i.e. after the testing the fitness of the specimen for use in service is unchanged.
From the Back Cover
Many engineers who rely on structures or components in the course of their work will know the importance of both quality control and in-service monitoring, to ensure effective and safe operation. Non-destructive testing techniques are vital in helping to achieve these aims. This comprehensive update to the successful first edition focuses on the important field of industrial radiology, one of the most widely used techniques. As well as covering the principles behind industrial radiology it describes the methodology and applications of various techniques and the interpretation of results obtained. The book includes completely new material on analysis of standards, the application of computers, computed tomography, processing and automated interpretation of digitized images, and backscatter methods. Industrial Radiology will be invaluable to quality control engineers, metallurgists, and non-destructive testing personnel in many areas of industry, as well as to academics studying defect assessment and behaviour in materials.
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