Rapid Alloy Classification of Small Precision Forgings for the Aircraft Industry
In the manufacture of small precise-to-form forgings for the aero-space industry, components, many of identical shape, in a wide range of alloys are processed at the same time. Methods of alloy classification employed have developed from chemical spot checks up to automatic read-out spectrographs, w...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
1977-02-01
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| Series: | Measurement + Control |
| Online Access: | https://doi.org/10.1177/002029407701000207 |
| Summary: | In the manufacture of small precise-to-form forgings for the aero-space industry, components, many of identical shape, in a wide range of alloys are processed at the same time. Methods of alloy classification employed have developed from chemical spot checks up to automatic read-out spectrographs, which produce a high spectrum dispersion. This technique necessitates highly skilled operators and introduces a mental fatigue factor. This paper describes the development of a direct reading automatic read-out unit capable of operation by personnel having a minimum of training. A special counter-electrode and feed system was required. Due to the variation in surface finish and geometric shape of the forgings, the simple setting procedure envisaged was not practical and use of a trimming standard was required as an integral part of the procedure. The unit has been in production for over two years and has completed over 900 000 alloy classifications. |
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| ISSN: | 0020-2940 |