Published: 2016-09-09
Total Pages: 58
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Excerpt from Lathe and Planer Tools While the power required to cut is increased greatly by dullness of the cutting edge, we must avoid the wood chisel edge, because time lost in constantly removing the tool for grinding purposes eats up the profit. In Fig. 9 are illustrated two extreme cases - that on the left, too great top rake, and the other, without any. The one will do good work for a few minutes, provided the cut is not too heavy, but the wear of the edge is so great that the angle will soon become blunt, and it would be very much better to have no top rake at all. On the other hand, the cutting wedge, as I will call the tool shown at the right, is too blunt to do good, clean work, and from the position in which it is set, the chip will come off nearly straight and in small pieces. The happy medium between the two is indicated in Fig. 10. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
