Tweco 181i Thermal Arc Fabricator - Manual (Page 72)

Fabricator 181i
BASIC WELDING GUIDE 4-14 Manual 0-5191
Art # A-07699_AB
45° from
vertical
60° - 70° from line
of weld
Figure 4-23: Electrode Position for HV Fillet Weld
Art # A-07700_AB
1 2
3
4
5
6
Figure 4-24: Multi-runs in HV Fillet Weld
C. Vertical Welds
1. Vertical Up
Tack weld a three feet length of angle iron to your work bench in an upright position. Use a 1/8"(3.2mm)
E7014 Stick electrode and set the current at 100 amps. Make yourself comfortable on a seat in front of the
job and strike the arc in the corner of the fillet. The electrode needs to be about 10º from the horizontal to
enable a good bead to be deposited. Refer Figure 4-25. Use a short arc, and do not attempt to weave on
the first run. When the first run has been completed de-slag the weld deposit and begin the second run at
the bottom. This time a slight weaving motion is necessary to cover the first run and obtain good fusion
at the edges. At the completion of each side motion, pause for a moment to allow weld metal to build up
at the edges, otherwise undercut will form and too much metal will accumulate in the centre of the weld.
Figure 4-26 illustrates multi-run technique and Figure 4-27 shows the effects of pausing at the edge of
weave and of weaving too rapidly.
Art # A-07701
Figure 4-25: Single Run Vertical Fillet Weld
Art # A-07702
Figure 4-26: Multi Run Vertical Fillet Weld
Art # A-07703
Figure 4-27: Examples of Vertical Fillet Welds