Oxygen/Acetylene Gas Welding
Torch welding is one of the oldest and most popular ways to join metal. When made by a skilled welder, a good gas weld is every bit as strong as anything made by a machine, and in most cases far more attractive, which is an important consideration when we're discussing motorcycles, with their many visible joints. The most common gas welding device is the Oxygen/acetylene torch. In this process oxygen and acetylene are stored separately in high pressure cylinders. Flexible hoses connect the tanks via pressure regulators to a torch equipped with adjustable flow control valves. The gas flows through and mixes in the torch, and is burned at the torch tip. The flame produced melts the base metal and the filler rod, which all combine to create the joint. Oxy-Acetylene torches are extremely versatile, they can be used to heat, cut, braze, solder and weld, and because of that they are found in every properly equipped repair shop in the world. Ironically because they are so common, and unfortunately so abused by guys that don't know how to properly use them, some armchair experts tend to look down on them, if they knew how to actually use them it'd be a different story.