Braze welding

From GAWDAwiki

Braze welding, sometimes referred to as bronze welding, is a form of welding in which a bronze or brass filler rod coated with flux is heated with an oxyacetylene torch in order to join two pieces of steel.

This method of welding is distinct from brazing in that capillary action is not a factor in braze welding. The processes are similar, however, in that the filler material is melted, while the base metals are not. This is because braze welding occurs at temperatures greater than the melting point of the filler material (which must be greater than 840°F or 450°C) but lower than those of the base metals.^[1]

Advantages to Braze Welding

1. Ability to join dissimilar metals with different melting points
2. Reduced risk of distortion and other defects caused by heat
3. Elimination of stored-up stresses common to fusion welding

Disadvantages to Braze Welding

1. Loss of strength under high temperatures
2. Unable to withstand high stresses^[2]

References

1. http://www.madabout-kitcars.com/kitcar/kb.php?aid=126
2. http://www.tpub.com/content/construction/14250/css/14250_126.htm