Forge-practice (elementary) by Bacon John Lord b. 1878

Author:Bacon, John Lord, b. 1878
Language: eng
Format: epub, pdf
Tags: Blacksmithing, Forging
Publisher: New York, J. Wiley & Sons; [etc., etc.]
Published: 1908-03-25T05:00:00+00:00

FORGE-PRACTICE.

The forging is finished with a few blows in the finishing die D, which is shown by a sectional cut and plan. This die is so shaped that, when the two parts are together, the hole left is exactly the

shape of the finished forging. In the first die, however, it should be noticed that the holes do not conform exactly to the desired shape of the forging; here the holes, instead of being semicircular, are rounded off considerably at the edges. This is shown more clearly in Fig. 227, A, where the dotted lines show the shape of the forging, the solid lines the shape of the die.

The object of the above is this: If the hole is a semicircle in section, the stock, being larger than the small parts of the hole, after a blow, is left

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