Welding Preparation; Welding Positions; Preparing The Joint - Forney 235 AC/DC ARC Manual De Instrucciones

Welding Preparation

Your work should be performed in a safe, comfortable and organized area. The work area should be
free of all flammables with both a fire extinguisher and bucket of sand available for emergencies. To
properly prepare for welding follow these simple instructions:
1. Prepare an organized well lighted work area.
2. Follow the instructions for personal protection for yourself as well as those around you.
3. Make sure you've studied all safety instructions found at the front of this manual.
4. Set up the workpiece and make the ground clamp connection.
5. Select the appropriate electrode.
6. Turn on the power switch of your welder.
ARC RAYS CAN INJURE EYES AND BURN SKIN! Prolonged exposure to arc rays can
cause blindness and burns. Never strike an arc or begin welding without adequate eye and skin
protection. Wear flameproof welding gloves, a heavy long-sleeved shirt, cuffless pants, high-
topped shoes and a welding helmet.

Welding Positions

Arc welding can be performed from any of four basic positions:
1. Flat - generally easier, faster, and allows for better penetration of the metal
2. Horizontal - generally easier, faster, and allows for better penetration of the metal
3. Vertical - usually used only when welding with DC welding capabilities
4. Overhead - considered the most difficult, usually used only when welding with DC welding
capabilities
For best results, position the workpiece so that the bead will run on a flat surface.

Preparing the Joint

For the most effective welding, surfaces to be joined must be free of dirt, rust, scale, oil or paint.
Welding on metals not properly cleaned will result in brittle or porous welds. If the base metal to be
joined is thick or heavy, it may be necessary to bevel the edges with a metal grinder directly at the point
of contact. The angle of the bevel should be approximately 60 degrees.
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