3D printing method and device based on friction stir additive

• Main Authors: WU DUWEI, PAN MEISHI, LU SHAOZHOU, DONG CHUNTAO, SU RIXING, WU HAO, HE GUOPING, CHEN HAIYAN, LONG XIE, ZHANG MOUXIONG
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a 3D printing method and device based on friction stir additive, and the 3D printing method comprises the following steps: S1, filling a hollow interior of a hollow metal rod with a reinforcement material; s2, the hollow metal rod is preheated so that the hollow metal rod can be softened; and S3, the hollow metal rod is driven to move along the printing route according to the printing route, the hollow metal rod is driven to rotate relative to the axis of the hollow metal rod when the hollow metal rod moves along the printing route, and the hollow metal rod is pushed to be vertically pressed on the 3D printing face through ultrasonic pressure welding. Performing ultrasonic pressure welding on the hollow metal rod and the reinforcement material in the hollow metal rod to form a deposition layer; and S4, the step S3 is repeated according to the printing route so that the multiple deposition layers can be stacked. According to the invention, the problem of uniform mixing of the metal matr