Rolls For Metal RollingMetal rollin

Rolls For Metal RollingMetal rolling manufacturing can produce a wide range of different products. The width of rolled work can be as much as several meters, or narrower than a thousandth of an inch. Metal rolling manufacture also creates rolled work over a wide range of thicknesses. Metal plates for some boilers may be rolled to a thickness of 12 inches, while foil for wrapping cigarettes and candy can be .0003 inches thick. Rolls used in metal rolling are of various sizes and geometries. In flat rolling processes, during industrial manufacture, the rolls may typically be 24 to 54 inches in diameter. In some metal rolling operations, in the forming of very thin work, the rolls can be as small as 1/4 inch.Rolls are subject to extreme operating conditions during the metal rolling process. Conditions include, tremendous forces, bending moments, thermal stresses, and wear. Roll materials are selected for strength, rigidity, and wear resistance. Roll materials vary dependent upon the specific metal rolling process. Common roll materials are cast iron, cast steel, and forged steel. Forged rolls are stronger and more rigid than cast rolls but are more difficult to manufacture. In industrial metal manufacturing processes, rolls are commonly made from nickel steel or molybdenum steel alloys. With metal rolling operations of certain materials, rolls made of tungsten carbide can provide extreme resistance to deflection.