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Hot rolling is a metallurgical process in which the metal is passed through a pair of rolls and the temperature of the metal is above its recrystallization temperature, as opposed to cold rolling, which takes place below it. This permits large deformations to be achieved with a low number of rolling cycles. Because the metal is worked before crystal structures have formed, this process does not itself affect its microstructural properties. Hot rolling is mainly used to produce sheet metal, or simple cross sections from billets. Hot rolling is primarily concerned with manipulating material shape and geometry rather than mechanical properties; This is achieved by heating a component or material to its upper critical temperature and then applying controlled load which forms the material to a desired specification or size. Metallurgy is a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. ...
Recrystallization is an essentially physical process that has meanings in chemistry and geology. ...
Rolling mill for cold rolling metal sheet like this piece of brass sheet. ...
See also
The old steel cable of a colliery winding tower Steel is a metal alloy whose major component is iron, with carbon being the primary alloying material. ...
profile rolling (to manufacture a cone) Rolling is a fabricating process in which the metal, plastic, paper, glass, etc. ...
Metalworking:
| | Metal forming: Image File history File links Blacksmith-hammer-anvil-50x50. ...
Turned chess pieces Metalworking is the craft and practice of working with metals to create parts or structures. ...
| Coin die | Coining | Cold rolling | Die | Drawing | Electromagnetic forming | Flypress | Hot rolling | Hydraulic press | Hydroforming | Machine press | Progressive stamping | Progressive die | Punching | Punch press | Rolling | Shear | Stamping press | Metal spinning | Swage A coin die is one of the two metallic pieces that are used to strike one side of a coin. ...
Coining is a form of precision stamping. ...
Rolling mill for cold rolling metal sheet like this piece of brass sheet. ...
A die is a tool used in the manufacturing industry to create a wide variety of products and components. ...
Drawing is a manufacturing process for producing a wire, bar or tube by pulling on a material until it increases in length. ...
Electromagnetic forming (EM forming) is a high energy rate metal forming process, that uses ultrastrong pulsed magnetic fields, to reshape metal parts rapidly . ...
A Flypress is a metalworking machine tool used to punch holes in sheet metal in one operation, rather than by cutting the hole or drilling, etc. ...
// The Hydraulic Press The hydraulic presses are capable of pressure at the head of 2,000 tons, and can cold form metal. ...
It has been suggested that this article or section be merged with hydroform. ...
Power press with a fixed barrier guard A press, or a machine press is a tool used to work metal (typically steel) by changing its shape and internal structure. ...
Progressive (punch and blanking) die with strip and punchings Progressive stamping is a metalworking method that can encompass punching, coining, bending and several other ways of modifying metal raw material, combined with an automatic feeding system. ...
Progressive die with strip and punchings A progressive stamping die (die) is a metalworking device that is designed and built to convert a strip of metal raw material into parts that to conform blueprint specifications. ...
Metals Punching in metal fabrication is the process of using a machine to press a shape through a sheet of metal and into a die to create that shape in the metal. ...
A Punch Press is a machine that has a set of punches and dies, a male (punch) and female (die), which when pressed together put a hole into the material used that is the same geometry as the punch that is being used. ...
profile rolling (to manufacture a cone) Rolling is a fabricating process in which the metal, plastic, paper, glass, etc. ...
A guillotine is a machine used to accurately cut sheet metal. ...
A stamping press (press) is a manufacturing device that is designed and built to operate progressive stamping dies and other types of dies. ...
Metal Spinning is a process by which circles of metal are shaped over mandrels (also called forms) while mounted on a spinning lathe by the application of levered force with various tools. ...
Swaging is a metal forming technique in which the metal is plastically deformed to its final shape using high pressures. ...
| Metalworking topics: Casting | CNC | Cutting tools | Drilling and threading | Fabrication | Finishing | Grinding | Jewellery | Lathe (tool) | Machining | Machine tooling | Measuring | Metalworking | Hand tools | Metallurgy | Milling | Occupations | Press tools | Smithing | Terminology | Welding One half of a bronze mold for casting a socketed spear head dated to the period 1400-1000 BC. This article is about the manufacturing process; for other uses, see Casting (disambiguation). ...
A CNC Turning Center The abbreviation CNC stands for Computer Numerical Control, and refers specifically to the computer control of machine tools for the purpose of (repeatedly) manufacturing complex parts in metal as well as other materials, using a program written in a notation conforming to the EIA-274-D...
a Cutting Tool, in the context of Metalworking is any tool that is used to remove metal from the workpiece by means of shear deformation. ...
Drilling is the process of using a drill bit in a drill to produce holes. ...
A typical steel fabrication shop Fabrication is an industrial term generally applied to the building of metal machines and structures. ...
Metalworking finishing is the activity of making things out of metal in a skillful manner. ...
Rotating abrasive wheel on a bench grinder. ...
Jewellery (Jewelry in American spelling) comprises ornamental objects worn by persons, typically made with gemstones and precious metals. ...
Conventional metalworking lathe In woodturning, metalworking, metal spinning, and glassworking, a lathe is a machine tool which spins a block of material so that when abrasive, cutting, or deformation tools are applied to the block, it can be shaped to produce an object which has rotational symmetry about an axis...
A lathe is a common tool used in machining. ...
A machine tool is a powered mechanical device, typically used to fabricate metal components of machines by the selective removal of metal. ...
The examples and perspective in this article or section may not represent a worldwide view. ...
Turned chess pieces Metalworking is the craft and practice of working with metals to create parts or structures. ...
Metalworking hand tools are hand tools that are used in the metalworking field. ...
Metallurgy is a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. ...
Cutters for a milling machine. ...
It has been suggested that this article or section be merged with Smith (metalwork). ...
Power press with a fixed barrier guard A press, or a machine press is a tool used to work metal (typically steel) by changing its shape and internal structure. ...
A smith or metalsmith is a person involved in the shaping of metal objects. ...
This article needs to be wikified. ...
Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. ...
| The first rolling mills were single stand mills (one set of rolls) and each sheet was rolled one at a time. The sheets started as plates, usually 3/4 of an inch thick 12 inches long and 12inches to 80 inches wide. Workers used tongs to get the plate out of a furnace and it was passed back and forth. The rolls were adjusted after each pass untill the desired thickness (gage) was obtained. Workers on each side of the mill had to use tongs to guide the ever longer sheets which were red hot untill enough passes had taken place to get the correct gage. During this process, the sheets had to be reheated which ment the workers had to use there tongs to place the sheets in the furnace and get it out. The work was brutally hard, and expensive. Over the years many attempts were made to line up mills so that a plate could be passed through a series of mills (known as a continuous hot strip mill)and be the correct gage when it passed through the last mill (set of rolls). It was finally |