What type of torch is most commonly used for brazing?

The most commonly used torch for brazing is the propane or oxy-acetylene torch. This type of torch allows for precise control of heat, which is crucial when working with materials that require careful joining, such as metals. The oxy-acetylene torch is particularly favored for its ability to reach higher temperatures, which are often necessary for brazing various alloys.

The versatility of propane and oxy-acetylene torches makes them a staple in metalworking environments, as they can be adjusted to produce a focused flame suitable for heating specific areas without overheating surrounding materials. Additionally, these torches can accommodate a wide range of filler materials used in brazing, making them suitable for different metal combinations.

In contrast, other types of torches like electric arc and TIG welding torches are primarily used for welding tasks and may not provide the necessary heating characteristics or versatility for effective brazing. Induction heating torches, while effective in certain applications, are less commonly used for general brazing tasks, mainly due to their specific application in industrial settings rather than in common brazing practices.