Preforms-An Economic way to Silverbrazing

Abstract

A preform is any shape of brazing alloy so fabricated that it can be easily and conveniently placed in the assembly prior to the brazing operation. Virtually all high production applications requiring a brazing or soldering alloy, whether it be silver, copper, brass, or lead can be designed, to take advantage of the economies of alloy preplacement. There are different types of preforms, each more adaptable for particular applications.