Rolling


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Related to Rolling: Hot rolling

rolling

[′rōl·iŋ]
(mechanics)
Motion of a body across a surface combined with rotational motion of the body so that the point on the body in contact with the surface is instantaneously at rest.
(metallurgy)
Reducing or changing the cross-sectional area of a workpiece by the compressive forces exerted by rotating rolls. Also known as metal rolling.
(naval architecture)
The oscillating motion of a vessel from side to side due to ground swell, heavy sea, or other causes.

Rolling

 

roll forming, a closed-impression die forging process for billets, using rotating dies (sectors) mounted on the machine’s forging rolls. The billet is placed between the rolls when they are in the idle position. The rolls, turning in opposite directions, seize the billet and deform it. This is a high-productivity process from which accurate billets can be obtained with a high metal capacity factor. It is used in the fabrication of connecting rods, conveyor links, and other machine parts, and also in obtaining shaped billets of irregular cross section for subsequent forging by presses and hammers. Small cantilever forging rolls are frequently used to roll shaped billets. Hot rolling of billets and finish forging of turbine and compressor blades are both widespread. Accurate cold rolling permits the elimination of mechanical processing of blades. Rolling provides for the continuous deformation and orientation of the metal fibers in accordance with the configuration of the part, thus imparting excellent mechanical properties to it.

REFERENCES

Suslov, P. V. Kuznechno-pressovoe oborudovanie. Moscow, 1956.
Martynov, V. N. Izgotovlenie pokovok i fasonnykh zagotovok v kovochnykh val’tsakh. Moscow, 1958.

D. I. BRASLAVSKII

rolling

The use of heavy metal or stone rollers on terrazzo topping to extract excess matrix.
References in periodicals archive ?
The effects ofthe initial rolling temperature and the rolling reduction on the microstructure are shown in Figure 3, and the grain size of the samples is reported in Table 2.
The dynamics of these active control systems is not enough to compensate the rolling force variation caused by the key groove.
Hardtack Rolling Pin: The hardtack roiling pin is used for creating flatbreads and crackers.
Farrugia worked with software developers from Abaqus of Pawtucket, R.I., to customize the software so design engineers could use it to simulate the physical phenomena of hot rolling. That includes large deformation of the rolled material, strong coupling between thermal and mechanical response, contact and friction, and cooling of the material between roll passes.
As the photo shows, thread rolling heads contain two or three internal disks.
Thus, a trustee-to-trustee transfer of IRA assets would not prohibit an individual from rolling over the assets of an IRA distribution at any time.
Create a long demonstration area with three stations that showcases not only rolling pins, but also various rolling surfaces.
While the rolling pin's primary function is to roll a lump of dough into a thin disc, many different styles of pins accomplish the task differently--each is designed for a different purpose and a different type of dough.
Normal mill mixing occurs with a rolling bank between the two opposite rotating rolls.
Features: Small footprint; excellent product wall distribution and top-load strength; specialized lid systems offered; patented rim rolling inline with automatic parts handling.
Create a long demonstration area with three stations to showcase not only rolling pins, but also rolling surfaces.