5
The angle relative to the plate for
the fillet weld shown in Figure 7-5 is usually 45 deg. However, for a
beveled butt joint, this angle may only
be a few degrees from the vertical to allow for proper wetting of the
weld metal to the side wall.
The second general welding technique
that should be considered is that of arc travel direction when the
welding must be performed in the vertical
position. As Figure 7-6 illustrates,
there are two methods with which
this welding can be done – vertical up and vertical down.
Here the torch positioning is extremely
important and welding should be performed only as shown.
In either case,
the arc must be kept on the puddle’s leading edge so as to insure complete
weld penetration. This
completes a definition of the factors which make up the controllable welding parameters
and techniques.
We shall now turn our attention to the manner in which each of these affect certain
weld characteristics.
Figure 7-4 - Longitudinal Torch Positions
Figure 7-5 – Transverse Torch
Positions
