Brazing is bonding metal parts using a filler metal between two surfaces and adding heat. The heat is used to melt the filler while warming the two surfaces to be joined. During cooling, the filler joins the surfaces together. Strength of this joint depends on the filler alloy. Brazing is a very popular method of metal joining because it has many advantages. Various types of metal can be brazed with different fillers. The brazing temperature depends on the filler melting point and the metals being joined. Brazing is a simple operational process and it has many opportunities for repairing parts. Its only drawback is saving the original mechanical properties of joined steel parts, because of the heat involved in the process.  The hardness of the part can be decreased due to brazing.

  The objective of this experiment combines three operations together: brazing, quenching and tempering during the repair a worn surface. This technology includes machining of the worn surface, manufacturing the new thin surface for the part, brazing the new surface to the machined part, and quenching the new surface (hardening) and tempering. All these operations were accomplished at same brazing station. This technology saves heat and time because all operations were accomplished in the right time-temperature sequences.