Autogenous welds work best on flare, outside corner, and lap joints because as the metal is melted, it can more easily flow together than it would on butt and tee joints.
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Q1: The lower the welding current, the wider
Q3: Turn off all power before attempting to
Q4: Severe GTA welding porosity is usually only
Q5: Welds with only slight oxide layers are
Q6: The faster that the torch is moved
Q7: The high thermal conductivity of _ rapidly
Q8: When tiny pockets of primarily _ gas
Q9: It is possible to determine the extent
Q10: It is desirable to take the time
Q11: The high surface tension of molten _
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