Low-melting composite filler metals Available to Purchase

There has been an increased demand for lightweight composite materials in recent years. In particular, aluminium-matrix composites (AMC) have been applied in many different sectors such as the aerospace industry, automobile production, or power-electronics. Composite filler metals with low melting ranges and adjusted technologies have been especially developed for joining temperature-sensitive AMCs. These special composites produced by equal-channel angular pressing feature a very high strength due to a very fine-grained structure. As a result of the addition of ceramic reinforcement components, an improvement of mechanical properties of the fillers has been achieved. In the present investigations, the microstructure of the joints and the influence of thermal treatment during the joining process on the temperature-sensitive base material were demonstrated. Therefore, the Brinell hardness was measured. The results show a high joining strength due to the use of the composite fillers but also a deterioration in the properties of the base material.