Hardening And Tempering Engineers Tools

Argus Books Ltd | ISBN: 0852427873 | 1977 | PDF (OCR) | 89 pages | 12.3 Mb
Introduction: THE efficiency of cutting tools employed in engineering and other crafts depends very largely on their correct heat treatment. The use of carbon steels is still predominant and, although the methods of hardening and tempering such tools is relatively simple and straight forward, there are many users of these tools who run into difficulties when attempting to harden and temper them. In the past, the methods employed in these processes have often been governed mainly by rule of thumb, and experienced tool makers have often evolved individual methods which have been in some cases closely guarded as trade secrets. Reliable practical information on the subject has been difficult to obtain.

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