Oxyfuel gas welding (OFW) includes any welding process that uses combustion with oxygen as a heating medium

The process involves melting the base metal and generally a filler metal, using a flame produced at the tip of a welding torch.

The advantage of welding process is the control a welder can exercise over heat input and temperature, independent of the addition of filler metal. Weld bead size, shape, and weld puddle viscosity are also controlled in the welding process.

The fuel gases have one common property; they all require oxygen to support combustion. To suitable for welding operations and fuel gas when burned with oxygen, it contained the following:

- High  temperature flame
- High rate of flame propagation
- Adequate heat content
- Minimum chemical reaction of the flame with base and filler metals

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Tags: Oxyfuel gas welding