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3-15. Welding Vertical Beads And Butt Joints
.
When welding vertically,
gravity may distort the mol-
ten metal.
.
This technique is not
suitable for all electrodes.
1
Electrode
2
Backing Strip
Weld vertically by carrying the
weld upward or starting at the top
and welding down. Welding up-
ward is easier and is shown in
these illustrations.
Bevel edges if warranted by ma-
terial thickness (see Section
3-11). Tack weld a backing strip
to the plates to make the first
weld pass (root pass) easier.
804 260
Single Pass Bead Weld
Single Pass Vertical Butt Joint Weld Or
First Pass Of Multi-Layer Deposit
Vertical Butt Joint Weld Subsequent Layers
1/2 in
(12 mm)
Whipping Up
Motion
Weave Bead
1/2 in (12 mm)
Wide
Direction Of
W
elding
Direction Of
W
elding
90
°
Direction Of
W
elding
90
°
90
°
Direction Of
W
elding
Arrows Show Lifting Up
Of Electrode And Return
To Crater.
OR
Direction Of
W
elding
4th Pass
1st Pass
2nd Pass
3rd Pass
Hesitate With
Slight Up And
Down Motion.
Shorten Arc At
Arrowheads
When At Center
Of Weld.
2
1
