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Crankshaft Types, Functions and Working Principle :- A crankshaft refers to a rotating shaft which is used for converting the reciprocating motion of a piston into a rotational motion. These shafts are commonly used in the internal combustion engines to with an aim to perform such operations.
Crankshafts is found consisting a series of cranks along with the crankpins to which the connecting rods are attached. The crankshaft includes at least one shaft which rotates inside the engine block. It rotates with the help of the main bearing. The crankpins is rotated between the connecting rods with the help of the rod bearings.
Crankshafts are built using the metals like cast iron. The metal is taken in the molten form and is then poured in a mold during the process of casting whereas the modern crankshafts are made from the forged steel that is mostly used in some performance engines.
The process of making a crankshaft includes heating a block of steel until it gets red hot. Once it gets hot its shape is formed using an extreme high pressure. The heat-treatment is either alloyed steel or nitride steel materials which are used. The crankshafts are also surface-hardened.