Innershield Welding Guide (pdf) - Lincoln Electric

WELDING TECHNIQUES
Vertical Up Fillet and Lap Welds
1. Make larger welds with the following techniques:
a. On 1/4” (6mm) welds, a short side-to-side motion is
usually sufficient.
b. On larger welds, use a triangular weave (see number
1 in the sketch below) with a distinct hesitation at the
outer edges for the first pass.
c. Use a side-to-side weave (see number 2 in the sketch
below) similar to that used for butt welds on the
second and later passes. The first pass should have a
face width of 5/16” - 3/8” (8 - 10mm) before
starting this weave.
2
MAKING DOWNHILL AND VERTICAL DOWN WELDS
With NR-202, NR-203 (types), NR-207, NR-208-H,
NR-211-MP, NR-212
Make 1/4” (6mm) or smaller welds using vertical down techniques.
The excellent high speed welding characteristics are best utilized
for low cost single pass welds by positioning the work downhill or
vertical down. About a 60° downhill angle with 5/64” or 3/32” (2.0
or 2.4mm) electrode usually provides maximum speed.
Use stringer beads and currents in the middle to high portion of
the range. Tip the electrode up so that arc force helps hold the
molten metal in the joint. Move as fast as possible consistent with
desired bead shape.
10-15°
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1