Put on all safety equipment, including heat resistant gloves and a welding mask.
Turn on the acetylene fuel at the tank, and then turn on the torch. Ignite your torch as instructed by the manufacturer. This is typically done by using an igniter. Open the oxygen valves. You will see the flame become tighter and develop a small bright blue flame inside the larger flame.
Hold the torch so that the smaller flame heats the two pieces to be welded.
Watch for pools of metal on both sides. Pull the molten metal from each side toward the other using the flame.
Pull the melted metal down the weld line, waiting until the next area becomes molten before pulling these sides together. Continue until the entire weld is complete.