Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
ENG
Select the wire diameter, heat setting, and tune in the wire speed as if you
were welding the same thickness material with a continuous bead.
SPOT WELDING INSTRUCTIONS
1. Select the wire diameter and heat setting recommended above for the me-
thod of spot welding you intend to use.
2. Tune in the wire speed as if you were going to make a continuous weld.
3. Hold the nozzle piece completely perpendicular to and about 1/4 inch off
the work piece.
4. Pull the trigger on the torch and release it when it appears that the desired
penetration has been achieved.
5. Make practice spot welds on scrap metal, varying the length of time you
hold the trigger, until a desired spot weld is made.
6. Make spot welds on the actual work piece at desired locations.
Electrode
The welding electrode is a rod coated with a layer of flux. When welding,
electrical current flows between the electrode (rod) and the grounded metal
work piece. The intense heat of the arc between the rod and the grounded
metal melts the electrode and the flux. The most popular electrodes are:
-E6011 60,000 PSI tensile strength deep penetrating applications.
-E6013 60,000 PSI tensile strength used for poor fit up applications
-E7014 70,000 PSI tensile strength used for high deposition and fast travel
speeds with light penetration
-E7018 70,000 PSI tensile strength, Used for out of position and tacking.
Selecting the proper electrode
There is no golden rule that determine the exact rod or heat setting required
for every situation. The type and thickness of metal and the position of the
work piece determine the electrode type and the amount of heat needed in
the welding process. Heavier and thicker metals required more amperage. It
is best to practice your welds on scrap metal which matches the metal you
intend to work with to determine correct heat setting and electrode choi-
ce. See following some helpful trouble shooting tips to determine if you are
using a correct electrode.
60
Advertenties
Inhoudsopgave
