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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
#constructional features and working of Multiplate Dry Clutch
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Draw the shear force and bending moment diagrams for overhanging beam subjected to pont load at its free end
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Find distance of which wagon will travel before coming rest: A train of wagons is first pulled on level track from A to B and then up a 5 percent upgrade as shown in the figur
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