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Casting, hot/cold rolling, forming, forging, heat treatment, annealing

The use of molten material, usually metal, is used in casting procedures. After that, the molten material is poured into a mould chamber that acquires the shape of the finished part. The molten material then cools until it hardens into the required shape, with heat being absorbed mostly through the mould. Despite the fact that the above represents a relatively simple process, casting is inherently a complicated process due to the metallurgy of working with molten metal. Casting is used to create parts with intricate shapes that would be difficult or cost prohibitive to create using other methods, such as cutting solid material.

Rolling is a metal forming process that involves passing metal stock between one or more pairs of rolls to reduce thickness, uniform thickness, and/or impart a desired mechanical attribute. The concept is comparable to how dough is rolled out. The temperature of the metal rolled is used to classify rolling. The procedure is known as hot rolling when the temperature of the metal is higher than its recrystallization temperature. Cold rolling is when the metal is rolled at a temperature below its recrystallization temperature. Hot rolling processes more tonnage than any other manufacturing process, and cold rolling processes the largest tonnage of all cold working processes in terms of tonnage.

Forming, also known as Metal Forming, is a vast group of manufacturing processes that transform a raw material into a finished product. We apply stresses like tension, compression, shear, and others to distort the raw material in this process. Sheet metal fabrication, forging, rolling, extrusion, wire drawing, thread rolling, rotary swinging, and other shaping techniques are examples.

Forging is the process of heating metal to extremely high temperatures. This forging method can be used to give metal a certain shape. The compressive force is usually what makes it operate. The metal is first heated to a very high temperature. The metal is then placed in a die. After that, a compressive force is applied to the heated metal so that it can deform into the shape of the die with the help of the force applied by the hammer or other device to the metal. As a result, the metal deforms to acquire its shape.

Annealing is a heat treatment method that increases a material's ductility while lowering its hardness. The reduction of dislocations in the crystal structure of the annealed material causes this change in hardness and ductility. After a material has been hardened or cold worked, it is frequently annealed to prevent brittle failure or to make it more formable for subsequent operations.

Committee Members
Speaker at Materials Science and Engineering 2022 - Ephraim Suhir

Ephraim Suhir

Portland State University, United States
Speaker at Materials Science and Engineering 2022 - Hari Mohan Srivastava

Hari Mohan Srivastava

University of Victoria, Canada
Speaker at Materials Science and Engineering 2022 - Bala Vaidhyanathan

Bala Vaidhyanathan

Loughborough University, United Kingdom
Speaker at Materials Science and Engineering 2022 - Kamran Nikbin

Kamran Nikbin

Imperial College, United Kingdom

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