The book Drop Forging was written by author Edward H Mcclintock Here you can read free online of Drop Forging book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Drop Forging a good or bad book?
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41, is for a cam shaft that is shown, after machining, at C in the same illustration. To produce this piece, SECTION a b Machinery, N. Y. Fig. 41. The Operations of Making: a Cam-shaft a forging is made as shown at A, in the same illustration. This is done in a simple pair of dies, having half of the impression in each die. The forging is finished in the pair of dies shown in Fig. 42. A pair of dies of this design are known as "upsetting dies" and consist essentially of a recess to take care of... the shank of the forging, con- fining it while a blow is struck to shape the head of the cam shaft in the impressions of the dies. Dies of this kind work after the manner of heading dies used in making rivets and screw blanks, except that they are not split for ejecting. The forging is forced from the die by means of a knock-out, as shown in the illustration. When the blow is struck, the knock-out pin is down, resting on the bottom of the die- shoe; after the striking is completed, the forger strikes the knock-out handle with a hand hammer, and the forging is ejected from the die.
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