The invention belongs to the field of amorphous
alloy thermoplastic forming and discloses a plastic forming and
toughening method and a device based on
ultrasonic vibration. The method comprises the steps: (a) dividing a part with
toughness to be enhanced on an amorphous ally part to be formed to be used for generating a nanocrystalline
toughening phase; (b) designing a
toughening device for forming, wherein the toughening device comprises an insert block connected with an
ultrasonic vibration amplitude change pole and a heating rod, the insert block corresponds to the part with the toughnessto be enhanced and is used for exerting
ultrasonic vibration on the part with the
toughness to be enhanced, and the heating rod is used for heating
raw material blank to be processed to a forming temperature; (c) putting the
raw material blank in the device, heating by the heating rod, mould closing the device to form a required amorphous
alloy part, starting ultrasonic vibration in a mould closing process and stopping in mould opening. Meanwhile, the invention further discloses the utilized device. By means of the plastic forming and toughening method disclosed by the invention, toughening and plastic forming can be performed at the same time, so that forming and toughening integration is achieved, production work procedures are simplified,
processing time is shortened, and dimensional accuracy is improved.