14 Major Factors for Quality Welding 1. The proper amperageWhen correct, a sharp crackling sound can be heard.Too Low: HummingToo Loud: Popping
15 Major Factors for Quality Welding 2. the thickness of the base metal and the diameter of the electrode.3. Arc Lengthequal to the diameter of the bare end of the electrode.
16 Major Factors for Quality Welding 4 Electrode AngleHold the electrode at a 90 degree angle of the two plates being joined5 to 15 degrees in the direction of travel.
17 Major Factors for Quality Welding 5. Speed of TravelIt should produce a bead that is 1.5 to 2 times the diameter of the bare end of the electrode.
18 Welding Procedures Make sure safety is being followed Insert the electrode in the electrode holder and hold it about 1 inch above the metalTurn Welder on
19 Welding ProceduresLower the helmet, bring the electrode in contact with the work and withdraw it slightly.The metal and the electrode melt forming a metal pool called a crater
20 Welding Procedures 8. There are two methods used in starting the arc. striking like a match.tapping the electrode quickly on the surface to prevent it from sticking
21 Welding Procedures9. Raise the tip of the electrode to about 3 /16 inch above the base metal. This forms a long arc which is held for a three count in order to preheat the base metal.10. Lower the electrode to the correct arc length.
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