Expanded Metal welding method
Expanded metal also named metal mesh, it is make by cutting slits in sheet metal and stretching the metal up to ten times its original size. Once expanded metal becomes flat, with equal diamond shaped openings.
First of all, you should prepare these tools: tables, fences, barriers, wastebaskets. Place the expanded metal on top of the metal that you are going to weld it to. Keep the welder at an angle to make the thicker metal continues to receive the direct flame. Finally, smooth the protruding edges.Since expanded metal is extremely thin, it needs to be welded to a thicker metal frame. Attach the expanded metal to the thicker metal. Catch the puddle with the tip of the welding rod and spread it evenly across the edge of the thicker expanded metal. Due to its thinness, working withexpanded metal will take some getting used to before you gain confidence in your project. Weld the entire perimeter of the expanded metal slowly, focusing the heat on the thicker part of the metal.
Tack the expanded metal to the thicker metal and a welding rod. Hold the welder in one hand and perform a series of small welds evenly around the perimeter of the wire mesh. Hold the welding rod in the hand that is not holding the welder, and allow molten metal to build up on the end of it. This melted metal, known as the puddle, will be used as filler metal. Weld just enough to pinch the two expanded metals together. The tacking will keep the expanded metal flat and will prevent warping.Putting too much heat on the thin metal mesh will burn it away, so use the welding rod to protect the thin metal from the direct flame.
Hebei Qianye Metal Products Co.,Ltd.
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