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2. Assembly methods for metal parts
2.1 Brazing
Brazing is a joining process in which a molten filler metal or filler alloy is pressed between two parts to be joined, which remain in a solid state during the operation (for the sake of brevity, the term "filler metal" may also be used to refer to a filler alloy).
Penetration is only successful if the filler metal wets the parts to be brazed sufficiently, i.e. if the wetting angle between these elements is small; this implies that they partially combine to form a solid solution or intermetallic compound. A filler metal must therefore be carefully selected, from among the possible materials, according to its melting temperature and its ability to form alloys with the elements to be brazed, and this independently...
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