The book Bolt Nut And Rivet Forging was written by author Douglas T Douglas Thomas Hamilton Here you can read free online of Bolt Nut And Rivet Forging book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Bolt Nut And Rivet Forging a good or bad book?
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The machine runs continuously until the heated portion of the bar has been exhausted, when the operator takes a newly heated bar from the furnace and proceeds as before. A bolt or rivet made in a machine of this type receives only one blow, and, therefore, for work within the capacity of this machine, the production is greatly increased over that obtained from the plain BOLT AND RIVET HEADERS 21 type of forging machine. One of the chief requisites in a machine of the continuous-motion type is t...hat of securing a rigid grip on the work while the head is being formed. If the grip is not satisfactory, that is, if the dies separate, it causes the shank of the bolt or rivet to become tapered or out of round, and also results in fins being produced on the shank and under the head. Furthermore, unless the machine is provided with suitable slides which can be kept in proper alignment, it is difficult to secure work on which the heads are cen- trally located with the shanks, and also to keep the shear and movable die in correct working relation.
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