Device and method for enhancing foil connection strength under laser loading

Abstract

The invention provides a device and method for strengthening foil connection strength under laser loading. The device comprises a laser loading system, a control system, a heating system, a welding system, a clamping system and a three-dimensional mobile platform system; the laser loading system comprises a focusing lens, a lens support, a lens height adjustor, a reflector and a pulse laser; the control system comprises a computer, a laser controller, an air pressure controller, a heating controller and a three-dimensional mobile platform controller; the temperature system comprises a heating plate; the three-dimensional mobile platform system comprises a three-dimensional mobile platform and a right-angle base; the welding system comprises a restraint layer, an absorbing layer and a workpiece; and the clamping system comprises a workpiece, an air cylinder, a die driving device and upper and lower dies. According to the device and method, under the heating condition, by loading lasers, two layers of foil can be subject to impact welding and clamping at the same time, and the connecting strength of the foil is strengthened; and the die driving device in the device can drive the movable upper die to move left and right, the self-locking effect can be achieved, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the field of laser shock welding in mechanical manufacturing and the technical field of deformation connection of metal foils, in particular to a device and method for enhancing the connection strength of foils under laser loading. Background technique [0002] In recent years, micro-devices have become more and more widely used in electronic products, biology, medical equipment, precision instruments and other industries. The miniaturization of products has become an important trend in the manufacturing industry, and the research on metal foil connection technology related to it is becoming more and more important. New lightweight metal foils are playing an increasingly important role in the development of human society due to their variety and performance diversity, wide applicability and huge application potential. However, the traditional metal foil joining technology has been unable to meet the development needs of new met...

AI Technical Summary

Problems solved by technology

This invention can weaken the back mark produced on the workpiece during the spot welding process, so that the appearance of the workpiece or the product formed by the workpiece is more beautiful, but this processing method needs to bend the workpiece in advance, so the efficiency is low; High laser energy is required and the duration is long, so it consumes energy; in addition, there is only one connection method of spot welding, which will lead to low connection strength

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