How to Aero Weld Stainless Tanks
Whether you're connecting stainless tanks to aerospace machinery or repairing them, use welding techniques to complete the task. Shielded metal arc welding (SMAW), semiautomatic gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) are common welding techniques used for aerospace equipment. While all the techniques are used for aerospace equipment, GMAW is an effective method for thin and heavy stainless steel surfaces, such as stainless tanks. This method also does not create a mess, which makes cleanup faster. Does this Spark an idea?
Instructions
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Clean the surface of the stainless steel tanks with a stainless steel wire brush. Rub the brush over the surfaces and edges you will weld. Remove all burrs and oxides from the surfaces.
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Rub the dirt, debris and oil from the surfaces using a soft cloth and dish detergent. Let the surface dry for 30 minutes or until it is completely dry.
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Preheat the stainless tanks to a temperature of 70 degrees Fahrenheit if you live in a cold climate.
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Place the edges of the stainless tanks in work clamps to hold them in place during the welding. The edges of the stainless tanks should be touching.
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Turn the nozzle of the gas tank in a counterclockwise direction to open it and release the gas. Position the tip of the GMAW gun a quarter-inch from the welding surface.
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Weld the edges of the stainless tanks together in a straight line for thin-gauge stainless tanks. For heavier stainless tanks, move the tip of the nozzle in a zigzag pattern between the two edges.
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Move the welding gun at a steady and constant speed. The steadiness makes an even, uniform weld between the two edges.
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Place the tip of a chipping hammer over the welding slag and remove excess slag from the sides of the weld.
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Tips & Warnings
Wear protective goggles, gloves and clothing.
Breathe through a respirator and work in a well-ventilated area.
Use caution when handling a welding gun. The fumes are hazardous to your health. Contact a medical professional immediately if your skin makes contact with the welding gun or if you have problems breathing from faulty ventilation or respiratory equipment.
