Abstract

Solders and brazing filler metals are special alloys used to join parts, whether of metallic, ceramic, or composite material, into an assembly through metallurgical bonding. Solders melt below 723 K; brazing filler metals, above. The essence of the joining processes in which these alloys are used is described. Special attention is paid to joint design, part preparation before processing, and the specifics of soldering and brazing processes. A complete classification of solders and brazing filler metals, mostly based on composition of alloys and their compatibility with various classes of steel and alloys, is given, as are general recommendations for potential applications of each group of brazing filler metals and solders. Health and safety factors associated with usage during manufacturing processes are discussed.