公开(公告)号：US20180193921A1

公开(公告)日：2018-07-12

申请号：US15741329

申请日：2016-07-20

Applicant: The Swatch Group Research and Development Ltd

Inventor： Alban DUBACH ,  Yves WINKLER

IPC: B22F7/00 ,  B22D25/00

CPC classification number: B22F7/006 ,  B22D25/005 ,  B22F7/004 ,  B22F2998/10 ,  B23P11/025 ,  G04B13/02 ,  G04B19/12 ,  B22F9/04 ,  B22F3/15 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/20

Abstract: A process for assembling a device including first and second parts made of first and second materials, respectively, and a third part made of a third material that acts as an intermediate part enabling the assembling, the process including: providing a preform made from an at least partially amorphous metal material capable of increasing its volume under temperature and pressure conditions; placing the first and second parts with the preform between two cavity plates having, the negative shape of the device; heating the assembly to a temperature between the glass transition temperature and the crystallization temperature of the preform to enable, at latest during the heating, the preform to be in a form of a foam and enable expansion of the preform to fill the negative shape of the device and form the third part; cooling the assembly to solidify the preform and separate the device from the cavity plates.