Forging Rolls

forging rolls

[′fȯrj·iŋ ‚rōlz]
(metallurgy)
A machine used in making forgings by rolling the metal.

Forging Rolls

 

a machine used for shaping (rolling) articles that do not have significant transitions, projections, ribs or sharp changes in cross section, such as wrenches, handles of adjustable wrenches, screwdrivers, harrow teeth, and turbine blades.

Bar stock is placed between the sectors, whose surfaces have indentations (channels) for distributing and imparting the desired shape to the article. The interchangeable sectors are mounted on rotating rollers. The mechanisms of the forging rolls, which are mounted on the front table, continuously direct the stock as it passes through the sectors, move the metal from one channel to another, and so on. The rear table has adjustable stops for setting the length of the stock being forged. The mechanisms are powered by an electric motor. Forging rolls are also used in forging production to shape stock before stamping complex parts. Forging rolls may be used to cut, bend, and trim stock.

REFERENCES

Mansurov, A. M. Tekhnologiia goriachei shtampovki. Moscow, 1960.
Zalesskii, V. I. Oborudovanie kuznechno-pressovykh tsekhov. Moscow, 1964.

L. A. NIKOL’SKII

References in periodicals archive ?
(2015) Cross Wedge Rolling and Forging Rolls as Additional Devices in Closed Die Forging, 26th DAAAM International Symposium on Intelligent Manufacturing and Automation, DAAAM 2015--January, pp.
Other products include tube upsetters, forging rolls, wire drawers, and cutoff machines.
deals with the development of the preforming machines, mainly forging rolls for several years for these reasons.
In the following chapters will be description of two most useful ways of material preforming-cross wedge rolling and forging rolls.
Forming is done in several passages between forging rolls. In this type of preforming bar is possible to achieve non-circular shape of the forgings.
Comparison of forging rolls and cross wedge rolling by using virtual simulation
Comparing consists of creating an identical part by forging rolls and cross wedge rolling.
To achieve of connecting rod is determined the following optimum shape of preform, so that it can be achieved by cross wedge rolling and forging rolls. [3]
Forming using forging rolls cannot be done in one pass as in the cross wedge rolling.
It is obvious that in forging rolls technology is reached about twice the force in comparison with cross wedge rolling, the other hand reached torque is only 1/8.
From the viewpoint of energy intensity is not suitable to choose cross wedge rolling, but forging rolls energy shows the value for one pass.
However, for forging rolls, which would need 4 to 5 passages it is hardly performable without quick automation.