Plymetal Brazing Preforms
Plymetal is a “sandwich” material with braze alloy bonded to both sides of a copper strip. Standard thicknesses are .010″, .015″ and .020″. There are many industrial applications that call for the brazing of carbide to a mating surface. Often time, a plymetal (3 layer) braze alloy is the best choice.
Plymetal brazing alloys serve two primary purposes:
- The internal layer of copper helps to absorb stress caused by the different thermal expansion properties of the metals being joined and;
- Since many applications involve abusive environments, the copper serves a bit like a shock absorber against impact strikes on the assembly.
Plymetal brazing alloys are used in a wide variety of applications including mining applications, single point cutting tools, burr heads and for wear resistance components.