Migomag SIM 200 LCD - Page 31

Migomag SIM 200 LCD
Model No ASIM200LCD
28
2. Welding Techniques
The best way to teach yourself how to weld is with short periods of pracce at regular
intervals. All pracce welds should be done on scrap metal that can be discarded. Do not
aempt to make any repairs on valuable equipment unl you have sased yourself that
your pracce welds are of good appearance and free of slag or gas inclusions.
2.1 Holding the electrode
The best way to grip the electrode holder is the way that feels most comfortable to
you. To Posion the Electrode to the work piece when striking the inial arc it may be
necessary to hold the electrode perpendicular to the work piece. Once the arc is started
the angle of the electrode in relaon to the work piece should be between 10 and 30
degrees. This will allow for good penetraon, with minimal spaer.
2.2 Striking the arc
WARNING:
EXPOSURE TO A WELDING ARC IS EXTREMELY HARMFUL TO THE EYES AND SKIN.
• Never strike an arc or begin welding unl you have adequate protecon
• Wear ameproof welding gloves, heavy long-sleeved shirt, cuess trousers, high-
topped shoes and a welding helmet or shield
Scratch the work piece with the end of electrode to start arc and then raise it quickly
about 1/8 inch gap between the rod and the work piece. See following picture:
It is important that the gap be maintained during the welding process and it should be
neither too wide or too narrow. If too narrow, the rod will sck to the work piece. If too
wide, the arc will be exnguished. It needs much pracce to maintain the gap. Beginners
may get scking or arc exnguishing. When the rod scks to the work piece, gently rock it
back and forth to separate them. If not, the circuit is short connecon,
and it will overload the welder. A good arc is accompanied by a crisp, cracking sound. The
sound is similar to that made by eggs frying. To lay a weld bead, only 2 movements are
required; downward and in the direcon the weld is to be laid, as in following gure:
3.2mm