SMA 110 · Shielded Metal Arc Welding
Session 4 · Hour 1 · Voltage bows
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The current stays
Rated 300 A 40%. 200 A → 90% allowed. Rod minus. It digs.
Name the idle volt
0/6
Current stays. Voltage bows. Stick needs that.
Ten minutes. Rated duty times rated over actual, squared.
Rod minus. Heat in the plate. It digs.
DC leans. AC forgets. Move the ground. Walk back.
Arc off. Twenty to thirty volts. In a thirtieth of a second.
Ten to twenty centimeters. Half a meter a second.
CheckCompute duty at two hundred amps. Set DCEN. Prove idle volts drop. Set the hood at a hand. A constant-voltage source is a MIG lie in a stick booth.