Laser-assisting type ultrasonic additive manufacturing device for metallic foil tape and manufacturing method

Abstract

The invention discloses a laser-assisting type ultrasonic additive manufacturing device for a metallic foil tape and a manufacturing method. The device comprises a working platform, an ultrasonic roll welding pressing head which is positioned on the working platform, a first ultrasonic transducer and a second ultrasonic transducer, wherein the first ultrasonic transducer and the second ultrasonic transducer are correspondingly mounted at two ends of the ultrasonic roll welding pressing head; a scanning laser head and a protecting gas device, which have the same horizontal feeding speed as the first ultrasonic transducer and the second ultrasonic transducer, are arranged at the back of the ultrasonic roll welding pressing head; the metallic foil tape is positioned below the ultrasonic roll welding pressing head on the working platform; an infrared temperature measuring instrument which is in signal connection with the scanning laser head through a control system is arranged above the side surface of the metallic foil tape. According to the device, a welding part is subjected to twice consolidation through laser beams along the ultrasonic roll welding pressing head; the laser consolidation technology is adopted for assisting quick ultrasonic formation, thus the atoms, at the combination interface, of the metallic foil tape, are accelerated to disperse, and as a result, the efficient, high-quality, energy-saving and environmentally friendly ultrasonic additive manufacturing process is achieved.

Description

technical field [0001] The invention relates to the field of ultrasonic welding additive manufacturing, in particular to a laser-assisted ultrasonic additive manufacturing device and manufacturing method for metal foil strips. Background technique [0002] Additive Manufacturing (AM) technology, commonly known as 3D printing, Rapid Prototyping, or Solid Free-form Fabrication, is a science and technology that directly manufactures parts driven by the three-dimensional data of the parts based on the discrete-accumulation principle. system, known as a breakthrough in the field of manufacturing. Ultrasonic Additive Manufacturing (UAM) technology was transformed by the University of Michigan in 1999 and established a company. Additive manufacturing has achieved a wide range of applications. This technology achieves high-strength interatomic solid-phase bonding of materials through high-frequency vibration and friction between metal foils, and at the same time cooperates with pr...

AI Technical Summary

Problems solved by technology

[0003] In practical application, this technology has the following defects: First, the power of the ultrasonic generator and transducer is limited, the power of a single transducer is generally below 6KW and the price is expensive, and the thickness of the connectable foil is small, generally below 0.5mm and The width does not exceed 20mm

Secondly, under the limitation of the power of the existing equipment, some metal materials such as aluminum and copper have relatively high thermal conductivity, which is prone to insufficient energy and reduced connection strength during the ultrasonic welding process.

[0004] To sum up, the current ultrasonic additive manufacturing technology is mainly limited by the maximum power of the transducer, the thermodynamic properties of the material itself, the heat conduction mode of the material, and the difference in heat dissipation conditions. The combination quality and efficiency of ultrasonic additive manufacturing parts still restrict The development and application of the technology

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