公开(公告)号：US20190232430A1

公开(公告)日：2019-08-01

申请号：US15934405

申请日：2018-03-23

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Pan GONG ,  Fangwei LI ,  Xinyun WANG ,  Jianhua MO ,  Lei DENG ,  Junsong JIN

IPC: B23K26/342 ,  B23K35/02 ,  B23K26/142 ,  C22C45/00 ,  C22C45/02 ,  C22C45/10

CPC classification number: B23K26/342 ,  B23K26/142 ,  B23K35/0233 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C22C45/001 ,  C22C45/02 ,  C22C45/10

Abstract: The invention belongs to the field of additive manufacturing of amorphous alloy, and discloses a laser 3D printing forming system of amorphous alloy foil and a forming method thereof. The unnecessary material of the amorphous alloy foil is cut by a first laser and then the remaining portion is selectively scanned and heated by a second laser so that the amorphous alloy is heated to be in a superplastic state in the supercooled liquid region. Then, the amorphous alloy foil is rolled by a preheated roller in combination with the ultrasonic vibration to achieve interatomic bonding between layers of the amorphous alloy foil, and the amorphous alloy foil is then rapidly cooled, so that an amorphous alloy part with a large size, a complicated shape and a porous structure is formed. The invention has overcome the limitation of the size and shape of the amorphous alloy prepared by the traditional amorphous alloy preparation methods, and uses amorphous alloy foil as a raw material, which has lower cost than the traditional 3D printing amorphous powder. In addition, a roller is used to roll the ultra-thin amorphous alloy foil such that the prepared amorphous alloy part has a more compact internal structure.