METHOD FOR CONNECTING TO EACH OTHER THE LINKS OF A METAL WRIST-WATCH BRACELET

摘要

Method for connecting to each other the links of a metal wrist-watch bracelet, according to which metal pins (1) forming the pivots are clamped with their ends in holes (2) in the links, which are either or not blind, characterized in that pins (1) are used made of a shape memory alloy with great hysteresis which is programmed such that, in a temperature range in which it has a martensitic structure, its thickness is smaller than the width of the hole (2), when it is heated up above said martensitic temperature range, it is transformed into an austenitic structure, a pin (1) is put in the hole (2) in the first-mentioned martensitic temperature range, the pin (1) is subsequently heated up above said martensitic temperature range, such that the width of the pin is increased until it touches the walls of the hole (2), and a clamping stress is then built up, and the pin (1) is finally cooled off until the service temperature of the pin (1) is reached.