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Upsetting

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upsetting
The hot-forging operation by which the cross-sectional area of a metal bar or rod is increased locally.

Upsetting 

a forging operation consisting of the deformation of a blank by partial swaging with the goal of creating isolated bosses by shortening the billet.

Upsetting is done in a heated or cold state. Hot upsetting is done on horizontal forging machines. Forged gears, valves, springs, rings, and shafts are made by hot upsetting. Cold upsetting is done on automatic cold upsetting machines and presses. Bolts and rivets are made by cold upsetting. Upsetting is distinguished from other stamping processes by the high productivity and accuracy of the forging (without flash). Upsetting with local contact heating of the billets in a stamp on an electrical upsetting machine, which makes it possible to obtain large-size bosses in a single pass, is be-coming widespread.

REFERENCE

Suslov, P. V. Kuznechno-pressovoe oborudovanie. Moscow, 1956.

D. I. BRASLAVSKII


Upsetting 

a forging process in which plastic deformation of a preheated blank is used to reduce the height and increase the cross-sectional area of the blank. Upsetting is used as a preliminary to drawing in order to improve the structural properties of the casting and to increase forgeability. It is also used as a preliminary operation before broaching or forging.



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Peter sprang a couple of yards in the air, and then delivered a war-whoop and set off round and round the room, banging against furniture, upsetting flower-pots, and making general havoc.
AND tried to put his foot upon Peter, who jumped out of a window, upsetting three plants.
All I know is that one evening, entering incautiously the salon of the little house just after the news of a considerable Carlist success had reached the faithful, I was seized round the neck and waist and whirled recklessly three times round the room, to the crash of upsetting furniture and the humming of a valse tune in a warm contralto voice.
 
 
 
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