Car steel-aluminum splicing joint welding method and system

Abstract

The invention relates to a car steel-aluminum splicing joint welding method. The car steel-aluminum splicing joint welding method is characterized by comprising the following steps that a first workpiece and a second workpiece required to be subject to splicing welding are provided; secondly, the first workpiece and the second workpiece are vertically spliced and clamped; thirdly, a laser cuttingsystem is provided; fourthly, a laser molten brazing welding system is provided, and a laser welding head, a wire feeding head and a laser cutting head in the laser molten brazing welding system are arranged in series and column in the welding direction; fifthly, the laser cutting system is started, and high-energy laser beams formed through focusing of the laser cutting head irradiate the surfaceof the first workpiece vertically; sixthly, the laser molten brazing welding system is started, the laser welding head and the wire feeding head are subject to molten brazing welding along the trackof the laser cutting head, and welding process is finished. The invention further discloses a car steel-aluminum splicing joint welding system. Compared with the prior art, the method and system havethe beneficial effects of being good in welding effect and simple in process.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses two different types of materials: one works by melting them together while they are still molten or melted at room temperature; another material called iron (Fe), which acts like an electrode when it's heated). By exposure to both these materials under specific conditions, there will be strong bonds between each other without causing any cracks due to excessive thermal stress caused by rapid cooling after solidification from liquid state. These technical improvements improve the quality of joining layers made up of such materials.

Problems solved by technology

Technological Problem: The technical problem addressed in this patented text relates to improving the joining strength between different types of metals used in vehicle construction without causing damage caused by excessively high temperature differences when they fuse together under pressure. Existing techniques like riveting, solvent bonded weldings, and resistance spot welds require significant effort from manufacturors with limited resources.

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