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OPERATION | ||
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Vertical-Up Welding
The problem, when welding
Long arc
Short arc
NOTE: Holder end of electrode is lower than arc.
1.Use 1/8” (3.2mm)
2.When welding, the electrode should be kept hori- zontal or pointing slightly upwards. (See drawing above).
3.The arc is struck and metal deposited at the bot- tom of the two pieces to be welded together.
4.Before too much molten metal is deposited, the arc is SLOWLY moved
5.The upward motion of the arc is caused by a very slight wrist motion. Most definitely, the arm must not move in and out, as this makes the entire process very complicated and difficult to learn.
6.If the upward motion of the arc is done correctly with a wrist motion, the arc will automatically become a long arc that deposits little or no metal. (See drawing above.)
7.During this entire process, the ONLY thing to watch is the molten metal. As soon as it has solid- ified, the arc is SLOWLY brought back, and anoth- er few drops of metal are deposited. DO NOT FOLLOW THE UP AND DOWN MOVEMENT OF THE ARC WITH YOUR EYES. KEEP THEM ON THE MOLTEN METAL.
8.When the arc is brought back to the now solidified puddle, IT MUST BE SHORT, otherwise no metal will be deposited, the puddle will melt again, and it will “drip”.
9.It is important to realize that the process consists of SLOW, DELIBERATE movements. There are no fast motions.
Vertical-Down Welding
1.Use 1/8” (3.2m) or 3/32” (2.5mm) AWS 6011.
2.On thin metal use
(14 ga. 75 A - 16 ga. 60 A.)
3.Hold the electrode in a
4.Hold a VERY SHORT arc, but do not let the elec- trode touch the metal.
5. An up and down whipping | Very | |
short | ||
motion will help prevent | ||
arc | ||
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6. Watch the molten metal carefully.
The important thing is to continue lowering the entire arm as the weld is made so the angle of the electrode does not change. Move the electrode fast enough so that the slag does not catch up with the arc.