Process for brazing aluminium alloys without filler metal

摘要

The invention relates to a method for brazing, without metal filler, two components, at least one of which is an Al alloy. …??The process consists in bringing, before the actual brazing cycle, at least one piece made of an Al alloy in question into a temperature range between the solvus temperature TV of the alloy and 2/5 of the melting temperature (solidus) TS of the alloy expressed in Kelvin, for a sufficient period of time. …??After this treatment, isothermal or not, the alloy is capable of being brazed in a temperature range between the melting point TE of the most meltable eutectic corresponding to the phase diagram of the constituents of the alloy and that of the solidus of the alloy. This process makes it possible, in particular, to produce perfectly homogeneous brazing for reputedly non-brazable alloys. …IMAGE…