Abstract: An injection device for the production of at least one molded part made of amorphous metallic alloy, including: (i) a mold having at least two injection chambers connected to at least one cavity; and (ii) at least one heating means capable of melting metallic elements; and a multi-piston system including: (1) at least two injection pistons whose respective main axes are each aligned with that of their corresponding injection chamber and (2) a support cooperating with each of the injection pistons; and such that the support and/or the mold are able to move along an axis parallel to the main axes of the injection pistons so as to allow the loading of the metallic elements and the injection of the molten metallic elements into the injection chambers. Also, an injection method for the production of at least one molded part made of amorphous metallic alloy.

Abstract: Device and method for injection moulding a metal alloy intended for manufacturing at least one part made of an amorphous metal alloy or metallic glass, wherein: an injection mould (2) delimits a cavity that has a receiving face (4) and a frontal moulding face (5) opposite the receiving face, at least one sacrificial shaping insert (7) is placed in said cavity and has a rear face (8), at least one contact zone of which is adjacent to at least one contact zone of said receiving face of the cavity and a front face (9) that is situated opposite said moulding face of the mould and provided with a recessed shape, and an injection piston (I I) is movable in a chamber (12) of the mould and communicates with the moulding impression.

Abstract: A method for machining a sample of amorphous metal alloy using a femtosecond laser, including at least one step of irradiating the sample with a laser beam along a reference trajectory to ablate material from the sample, so as to obtain a sample machined and maintained in the amorphous state, in which, the laser beam is pulsed, and the duration of each pulse is less than 1000 femtoseconds, preferably less than 600 femtoseconds, and in which the amorphous metal alloy has a critical diameter less than 5 millimeters, and/or a difference between the crystallization temperature and the glass transition temperature less than 60° C., and/or a quotient of the difference between the crystallization temperature and the glass transition temperature and of the difference between the liquidus temperature and the temperature glass transition is less than 0.12.

Abstract: Device and method for injection moulding a metal alloy intended for manufacturing at least one part made of an amorphous metal alloy or metallic glass, wherein: an injection mould (2) delimits a cavity that has a receiving face (4) and a frontal moulding face (5) opposite the receiving face, at least one sacrificial shaping insert (7) is placed in said cavity and has a rear face (8), at least one contact zone of which is adjacent to at least one contact zone of said receiving face of the cavity and a front face (9) that is situated opposite said moulding face of the mould and provided with a recessed shape, and an injection piston (I I) is movable in a chamber (12) of the mould and communicates with the moulding impression.