Cold Extrusion Process for Steel Cold extrusion of metals is one of the most important manufacturing processes of today and effectively involves forcing the material through a die at room temperature for creating a continuous product of consistent cross-section. Cold extrusion is so called since the billet / slug or preform enters the extrusion die …
Read MoreMetal Casting Processes Metal casting process is the simplest and most direct route to a near net shape product and frequently the least expensive process. This process in its fundamental form needs a mould cavity of the desired shape and liquid metal to pour into the mould cavity. Metal castings are being produced for thousands …
Read MoreFluid Flow, Flow Control and Modifying Devices in a Tundish For the transfer of liquid steel from a steel teeming ladle to the moulds of a continuous casting machine (CCM), an intermediate vessel, called a tundish, is used. The tundish is intended to deliver the liquid steel to the moulds evenly and at a designed …
Read MoreMetal Forming and Metal Working Processes Metal working consists of deformation processes in which a metal billet or blank is shaped by tools or dies. In metal working, an initially simple work-piece (e.g., a billet or a blanked sheet) is plastically deformed between tools (or dies) to get the desired final configuration. The design and …
Read MorePre-treatment of Hot Metal Since the 1980s, the quality of raw materials and fuels used in ironmaking and steelmaking has increasingly deteriorated around the world. This trend has led to a deteriorating quality of hot metal in terms of higher contents of impurities. Also, during this period, there has been growing demand for the production …
Read MoreOperations in Steel Teeming Ladle in Steel Melting Shop The treatment of steel in the ladle has started around 1940s when the first ladle-to-ladle and ladle-to-ingot mould vacuum degassing processes for hydrogen removal has appeared on the scene. In the late 1950s, more efficient vacuum degassing units such as the Dortmund Hoerder (DH) and Ruhrstahl-Heraeus …
Read MoreWelding Metallurgy Joining of two metal elements by means of welding consists in the formation of a weld between these two elements. The weld is composed of molten, mixed and, eventually, solidified metal of the edges of welded elements as well as of filler metal (consumable). In principle, melting of metal during welding as well …
Read MoreShearing of Sheet, Strip, and Plate Shearing is a method for cutting a metal piece into smaller pieces using a shear blade to force the metal past an opposite shear blade in a progression form. Shearing is widely used to divide large, flat metal such as sheet, strip, and plate. Shearing is a fast and …
Read MoreFlattening, Levelling, Slitting, and Shearing of Coiled Flat Steel Product Hot strip mill and cold rolling mill produce steel strips in varying widths and material thicknesses. These plates / sheets are typically coiled for efficient handling, transport, and further processing. Steel coils are processed in several ways namely (i) it can be ‘slit’ into a …
Read MoreDeep Drawing Process for Sheet Metal Deep drawing is a sheet forming process in which in its simplest form, a cylindrical shape or alike is produced from a thin disc of sheet metal by subjecting it to a compressive force (while it is held between a die and blank holder) through a circular punch which …
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