Apparatus and method for impact welding of wire and foil under laser loading

Abstract

The invention provides a wire and foil shock welding device and method under the condition of laser loading. The wire and foil shock welding device under the condition of laser loading comprises a laser loading system, a workpiece system and a control system. The laser loading system comprises a double-right-angle type base frame, a focusing lens, a lens support, a lens height adjuster, a totally-reflective mirror, a totally-reflective mirror support and a pulse laser. The workpiece system comprises a restraining layer, an absorbing layer, a foil material, a metal wire and a workbench. The control system comprises a computer, a laser controller, a servo motor driver and an air pressure controller. The metal wire passes through an upper locating slot and a lower locating slot of the workbench to be located on the top of the workbench. The foil material coated with blank paint passes by the lower end of the workbench to be in contact with the metal wire, and a collision angle is formed between the foil material and the metal wire. Water is sprayed to the surface of the black paint located at the collision angle to be used as the restraining layer. Laser shock is controlled, high-temperature high-pressure plasma is induced out at the collision angle to form a strong shock wave, under the action of the shock wave, the material foil impacts the metal wire at a high speed, and then shock welding between the metal wire and the foil material is achieved.

Description

technical field [0001] The invention belongs to the technical field of laser processing in mechanical manufacturing, and in particular relates to an impact welding device and method for laser-loaded lower wire and foil. Background technique [0002] In recent years, with the rapid development of electronic products, biology, medical equipment, precision instruments, sensors and other industries, the miniaturization, precision and high performance of products have become one of the important trends in the development of the manufacturing industry, and related micro devices The research of welding technology becomes more and more important. Metal wires and foils are the main objects of micro-device welding, and the requirements for welding precision and process parameters are very high, so welding is very difficult. In addition, soldering quality not only directly affects the stability and reliability of micro-devices, but is also a key issue in the micro-fabrication process....

AI Technical Summary

Problems solved by technology

This invention is mostly used for welding between thicker plates, but it is not suitable for welding foils with a thickness below 100um, and it is not suitable for welding between metal wires and foils; and the energy required is large; and welding The collision angle cannot be guaranteed during the process, which will lead to insufficient welding strength; in addition, only one-piece welding can be realized, and the efficiency is low

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