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Stick Welding
WARNING
ARC RAYS can burn.
• When using an open arc process, it is necessary to use correct eye, head and body protection.
The
Follow the settings listed in Table B.4 “Welding Applications/Electrode Selection Guide” found on the nameplate of the machine.
Learning To Stick Weld
The serviceability of a product or structure utilizing this type of information is and must be the sole responsi- bility of the builder/user. Many variables beyond the control of The Lincoln Electric Company affect the results obtained in applying this type of information. These variables include, but are not limited to, welding procedure, plate chemistry and temperature, weld- ment design, fabrication methods and service require- ments.
No one can learn to weld simply by reading about it. Skill comes only with practice. The following pages will help the inexperienced welder understand welding and develop his skill. For more detailed information, order a copy of the book “New Lessons in Arc Welding.” (See Book Division section at rear of manual).
The operator’s knowledge of arc welding must go beyond the arc itself. He must know how to control the arc, and this requires a knowledge of the welding cir- cuit and the equipment that provides the electric cur- rent used in the arc. Figure B.3 is a diagram of the welding circuit. The circuit begins where the electrode cable is attached to the welding machine and ends where the work cable cable is attached to the machine. Current flows through the electrode cable to the electrode holder, through the electrode holder to the electrode and across the arc. On the work side of the arc, the current flows through base metal to the work cable and back to the welding machine. The cir- cuit must be complete for the current to flow. To weld, the work clamp must be tightly connected to clean base metal. Remove paint, rust,etc. as necessary to get a good connection. Connect the work clamp as close as possible to the area you wish to weld. Avoid allowing the welding circuit to pass through hinges, bearings, electronic components or similar devices that can be damaged.
Arc Welding power
source and controls
Electrode Holder
Electrode
Work Clamp
Arc
Work Cable | Electrode Cable | Work | Work |
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Figure B.3 - The welding circuit for shielded metal arc welding.
POWER ARC 5000