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INTRODUCTION
Much more interest in machinability investigations has been shown in
recent years, both by colleges and by Industrial Research departments,
due partly to the difficulty encountered in machining some of the new gas
turbine materials and partly to the availability of simple and economical
dynamometers as are described in this Note.
These dynamometers were designed to provide simple robust
instruments capable of being easily applied to a wide range of machines
without modification. Direct mechanical movement is the basis of their
construction and this has been justified by the trouble free service given
over a period of five years. Almost onehundred of each of these instruments
are being used, and so many requests have been received for a more
comprehensive account of their range of uses that the preparation of this
Note seemed justified.
It is encouraging to see the vigour displayed by industry and the
Colleges in this field since so much remains to be done to establish practical
machinability, data for British materials. By collaboration between
investigators it should be possible to arrange a programme of research
to cover a wide range of materials with the minimum duplication.
The illustrations of the instruments are shown by the courtesy of
Coventry Grinders Ltd. , Coventry. |
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