How to Adjust My ARC Welder
ARC welders weld by transferring an arc from an electrode to a work piece. Depending on the type of ARC welder, either the electrode will be a consumable wire or flux covered electrode. All ARC welders use a combination of voltage and amperage. With metal inert gas (MIG) welders, you control the amperage by adjusting the speed of the wire electrode. Setting the voltage and amperage correctly ensures a structurally sound weld between multiple pieces of metal.
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Instructions
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Place a piece of scrap metal on a metal work table. Set a fire extinguisher next to the table. Clear combustible materials from the area around the work table.
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Connect the ground clamp from an ARC welder to the metal table. Turn on the welder. Set the voltage and amperage -- wire speed for a MIG welder -- to the settings specified on the welding guide chart affixed to the welding machine.
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Run a weld bead on the scrap metal.
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Examine the weld bead. Increase the amperage if the edges of the weld roll toward the scrap metal. Decrease the amperage if the weld bead cuts into the surface of the metal leaving a gouge. Increase the voltage if you have difficulty starting the arc from the welder or decrease the voltage if spatter ejects from the electrode while welding.
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Continue adjusting the voltage and amperage until both sides of the weld bead melt evenly into the surface of the scrap metal and the weld has a consistent shiny appearance with little or no spatter surrounding the welded area.
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Tips & Warnings
Allow the scrap metal to cool before handling.
Wear heavy leather welding gloves when using an ARC welder.
References
- Photo Credit Jupiterimages/Photos.com/Getty Images
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welding is so good work for every one....................
