Cam Design and Manufacture (Classic Reprint) - Hardcover

Jacobs, F. B.

9780331029123: Cam Design and Manufacture (Classic Reprint)

Hardcover

ISBN 10: 033102912X ISBN 13: 9780331029123

Verlag: Forgotten Books, 2018

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Excerpt from Cam Design and Manufacture

Cam movements are among the most useful that the machine designer has at his command, for without them many complicated motions could not be laid out and con structed. When cams are laid out by cut-and - try methods (which is often the case), they are noisy in operation, create a vast amount of friction and are short-lived. On the other hand, if the curves are properly laid out, giving all possible time for the rises, the finished cams can be run at high speeds with very little noise or friction. Under these conditions, cams compare favorably in con struction cost and maintenance cost with more compli cated mechanical movements used for the same purpose.

When it is considered that a practical knowledge of cam design and manufacture is easily acquired, it may seem strange that the majority of technical works on machine design treat this subject lightly; or at least from only a theoretical point of View. While it can not be claimed that any one person knows the whole subject thoroughly, it is certainly possible to explain some of the methods that are in actual use for laying out and cutting cams. The use of the various methods and appliances that are described is not confined to any one locality, by any means, as these methods and appliances have been found in practically every manufacturing center of the country.

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