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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.
Determine the force to pull box along a level surface: A metal box having weight 10KN is pulled along a level surface at the uniform speed by applying horizontal force of 350
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Complete the following problem from the text by Megson. Note that since the answers are given, it is essential that you show and justify all work to receive full credit. Required
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