Welcome to the X3M TIG channel.
Today I'm going to show you how to weld in 3F or vertical-up,
E 7018-1-H4, 3/32
First pass will be with 3/32 rod size,
Use a weaving technique in the first past. No whipping.
The first pass will tend to be a bit ropey.
I will use the" crescent " technique on the first pass for fillet weld type.
IMPORTANT SIDE NOTE: Never whip an E7018 – you will introduce hydrogen into the weld.
Fighting gravity is the main challenge in vertical-up welding—or any position that is 45 degrees or steeper.
The correct arc length varies with each electrode and application.
As a good starting point,
arc length should not exceed the diameter of the metal portion (core) of the electrode.
For example, a 1/8-inch 7018 electrode is held about 1/8 inch off the base material.
Excessively long arcs (too much voltage) produce spatter, low deposition rates, undercuts, and often leaves porosity.
Knock of slag and run wire wheel
Always get comfortable before starting your weld.
Experienced welders can free-hand this type of weld, but when available they will brace themselves.
Now I will use 1/8 rod, for the final pass or capping
110 - 125 amps
ZIG-ZAG technique
In short welds, or if you are preparing to run your 3F or 3G test, do a dry run.
For welding vertical up,
use a push or forehand technique and tilt the top of the electrode 15 to 35 degrees away from the direction of travel.
Each welder manipulates the electrode a little differently.
Develop your own style by observing others, practicing, and noting which techniques produce the best results.
When welding vertical up, if you focus on welding the sides of the joint,
the middle will take care of itself.
Move across the middle of the joint slowly enough so that the weld puddle can catch up,
and pause slightly at the sides to ensure a solid tie-in to the sidewall.
Hold the electrode slightly uphill, and keep a short arc to gain better penetration and fusion.
A good technique to practice while welding is "counting" while pausing on sides...
...1...
...2...
...1...
...2...
...1...
...2...
...1...
...2...
Make sure to pause long enough on the sides, to avoid undercutting.
To continue where you stop, whip the electrode upward while maintaining the arc.
And return the electrode and apply another level to the leading edge of the weld
This is one of the most challenging strokes for welders to master
Along with monitoring the puddle, you must also keep an eye on the bead size.
"You gotta burn to learn,"
"The more you burn, the more you learn,"
"And the more you learn, the more you'll earn!"
Use a buffing wheel or grinder to clean your weld
from any slag, arc marks, or spatters.
Well, I hope you enjoyed watching the video
or find some useful information or technique
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