Migomag SIM 200 LCD
Model No ASIM200LCD
26
1. The BURN-THROUGH METHOD welds two overlapped pieces of metal together by
burning through the top piece and into the bottom piece. With the burn-through method,
larger wire diameters tend to work better than smaller diameters. Wire diameters that
tend to work best, with the burn-through method are 0.035 inch self-shielding flux-core
wire. Do not use .030 inch self-shielding flux core wires when using the burn-through
method unless the metal is VERY thin or excessive filler metal build-up and minimal
penetration is acceptable. Always select the HIGH heat setting with the burn-through
method and tune in the wire speed prior to making a spot weld.
2. The PUNCH AND FILL METHOD produces a weld with the most finished appearance
of the three spot weld methods. In this method, a hole is punched or drilled into the
top piece of metal and the arc is directed through the hole to penetrate into the bottom
piece. The puddle is allowed to fill up the hole leaving a spot weld that is smooth and
flush with the surface of the top piece. 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.
3. The LAP SPOT METHOD directs the welding arc to penetrate the bottom and top pieces,
at the same time, right along each side of the lap joint seam. 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.
7. 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:
• Kobe -6010
E6010 tensile strength deep penetrating applications.
• Kobe RB-26
E6013 tensile strength used for poor fit up applications
• Kobe LB-52U
E7016 tensile strength used for high deposition and fast travel speeds
with light penetration
• Kobe LB-52-18
E7018 70,000 PSI tensile strength, Used for out of position and tacking.
Used for out of position and tacking.
8. Selecting the Proper Electrode
There is no golden rule that determines 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 choice. See following some helpful trouble shooting tips to determine if you are
using a correct electrode.
