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The easiest way to start grouping substances is by comparing their physical properties. Let us study this with the help of the following activities. For performing Activities 3.1 to 3.6, collect the samples of following metals – iron, copper, aluminium, magnesium, sodium, lead, zinc and any other metal that is easily available. Activity 3.1.
3.1.1 Metals. The easiest way to start grouping substances is by comparing their physical properties. Let us study this with the help of the following activities. For Activities 3.1 to 3.6, collect the samples of following metals – iron, copper, aluminium, magnesium, sodium, lead, zinc and any other metal that is easily available. Activity 3.1.
Cold working: Generally done at room temperature or slightly above RT. Advantages compared to hot forming: (1) closer tolerances can be achieved; (2) good surface finish; (3) because of strain
Based on the nature of deformation force applied on the material, during forming, metal forming processes are also classified into several types as shown below: Forming is also classified as cold forming, hot forming or warm forming. Hot forming is the deformation carried out at temperatures above recrystallization temperatures.
1 sty 2013 · Cold drawing is widely used metal forming process with inherent advantages like closer dimensional tolerances, better surface finish and improved mechanical properties as compared to hot...
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Cold forming is a high speed forging process where coiled wire at room temperature is sheared to length and then moved through a succession of tool and die cavities.
