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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.
Pulsed DC Welding Pulsed DC involves the repetitive variation in arc current from a background (low) value to a peak value. Adjustments of the pulse current time, background cu
Explain a cone clutch. How this clutch is designed. It is needed to design a rigid type of flange coupling to connect two shafts. The input shaft transmits 37.5 kW power at 180
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CLASSIFIC A TIO N: (1 ) In accordance to Cylinder Axis: Engine can be vertical or horizontal. (2 ) In accordance to action of steam: Can be single acting or doub
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procedure for measuring area of square by planimeter
Components &it function?
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