Tweco Fabricator 141i Operating Manual - Manual (Page 77)

Fabricator 141i
Manual 0-5145 4-17 BASIC WELDING GUIDE
Art # A-07703
Figure 4-27: Examples of Vertical Fillet Welds
2. Vertical Down
The E7014 Stick electrode makes welding in this position particularly easy. Use a 1/8"(3.2mm) electrode
at 100 amps. The tip of the electrode is held in light contact with the work and the speed of downward
travel is regulated so that the tip of the electrode just keeps ahead of the slag. The electrode should point
upwards at an angle of about 45º.
3. Overhead Welds
Apart from the rather awkward position necessary, overhead welding is not much more difficult that
downhand welding. Set up a specimen for overhead welding by first tacking a length of angle iron at right
angles to another piece of angle iron or a length of waste pipe. Then tack this to the work bench or hold in
a vice so that the specimen is positioned in the overhead position as shown in the sketch. The electrode
is held at 45º to the horizontal and tilted 10º in the line of travel (Figure 4-28). The tip of the electrode may
be touched lightly on the metal, which helps to give a steady run. A weave technique is not advisable for
overhead fillet welds. Use a 1/8"(3.2mm) E6013 Stick electrode at 100 amps, and deposit the first run by
simply drawing the electrode along at a steady rate. You will notice that the weld deposit is rather convex,
due to the effect of gravity before the metal freezes.
Art # A-07704
Figure 4-28: Overhead Fillet Weld