1 Arc Welding Methodsand Processes Arc Welding Methodsand Processes Harry Sadler Manager Military and Shipbuilding Sales Harry Sadler Manager Military and Shipbuilding Sales What … Weld? What is a Fusion Weld?ç A metallurgical bond resulting from the localized coalescence of base metal. This generally requires the addition of energy and may or may not use a supplemental filler metal that intermixes with the base metal.ç A metallurgical bond resulting from the localized coalescence of base metal. This generally requires …

What is a Fusion Weld? ç A metallurgical bond resulting from the localized coalescence of base metal. This generally requires the addition of energy and may or may not use a supplemental filler metal that intermixes with the base metal. ç A metallurgical bond resulting from the localized coalescence of base metal. This generally requires the addition of energy and may or may not use a supplemental filler metal that intermixes with the base metal. Cross Section of a Groove Weld Cross Section of a Groove Weld What’s the source of energy? What’s the source of energy? ç In arc welding, it’s the heat generated by an electric arc. ç In arc welding, it’s the heat generated by an electric arc. Reactor Reactor Selects Output Selects Output Welding Current Welding Current Bridge Rectifier Bridge Rectifier Changes AC to DC Changes AC to DC Inductance Coil Inductance Coil Smoothes / Filters Smoothes / Filters DC Output DC Output Transformer Transformer Single Phase Input Single Phase Input High Volts High Volts High Amps High Amps Low Amps Low Amps Low Volts Low Volts Transformer Rectifier Transformer Rectifier AC -50/60 Hz AC -50/60 Hz High Voltage High Voltage Low Amperage Low Amperage DC -Rippled DC -Rippled High Voltage High Voltage Low Amperage Low Amperage DC -Smooth DC -Smooth High Voltage High Voltage Low Amperage Low Amperage AC -20,000 Hz AC -20,000 Hz High Voltage High Voltage Low Amperage Low Amperage AC -20,000 Hz AC -20,000 Hz Low Voltage Low Voltage High Amperage High Amperage DC -Rippled DC -Rippled Low Voltage Low Voltage High Amperage High Ampera….

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