Shielding gases in the gas metal arc process are used primarily to protect the molten metal from oxidation and ____________________.
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Q21: Because of the constant-potential power supply, the
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Q23: The exact shielding gas _ required for
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Q25: What can be done to keep the
Q27: Explain how high gas flow rates can
Q28: Filler metals and fluxes usually have _
Q29: Short electrode stickout gives a _ weld
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Q31: The _ of a wire is measured
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