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First, welding began to replace riveting in ship-and plane-building (TIME. Dec. 15). Now cast steel is replacing forged steel, and in tanks it is replacing both riveted and welded armor plate.

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Welding is only one part of metalworking. You also can cut steel, using oxygen/acetylene equipment with a special head called a cutting torch. Cutting torches come as part of many consumer-grade gas ...

Mixed farmer Richard Archer has spent more than 35 years teaching the agricultural fraternity to weld, which makes him more than qualified to give advice on arc welding to help farmers polish up their ...