Multi-stage pressure friction welding control and quality evaluation method based on flash vision

Abstract

The invention provides a multi-stage pressurized friction welding control and quality evaluation method based on flash vision, including workpiece installation and position adjustment, starting the friction welding process, welding flash detection, welding process control and post-weld quality evaluation; the method It adopts welding machine base platform (10), welding machine rotating end (20), welding machine moving end (30), oil pressure station (40), camera bracket (50), computer control system (60) and welding machine control system (70) multi-stage pressure friction welding device for welding. This method does not need to destroy the welded joints, and can evaluate and control the quality of the welded joints in the friction welding process in a timely, efficient and accurate manner, thereby reducing welding inspection time, improving welding efficiency, ensuring production pass rate and reducing production costs. .

Description

technical field [0001] The invention relates to the technical field of friction welding, in particular to a multi-stage pressurized friction welding control and quality evaluation method based on flash vision. Background technique [0002] Welding plays a vital role in the manufacturing process and is the key basic technology of my country's manufacturing industry. It is widely used in aerospace, automotive industry, powder metallurgy, biomedicine, microelectronics and other fields. Friction welding refers to that under the action of pressure, and under the action of constant or increasing pressure and torque, the relative motion between the welding contact end surfaces is used to generate friction heat and plastic deformation heat on the friction surface and its surrounding areas, so that it The temperature of the surrounding area rises to a temperature range close to (but generally lower than) the melting point, the deformation resistance of the material decreases, the pla...

AI Technical Summary

Problems solved by technology

[0003] In the welding process, due to the many parameters involved in the friction welding process, the coupling between various factors can easily lead to the impact on the quality of the friction welding joint.

At present, when judging the quality of friction welding, it is usually necessary to combine non-destructive testing and destructive testing. The testing cycle is long and the testing cost is high. At the same time, there are delays or time interruptions in the testing, which is not conducive to timely traceability and cannot correspond to the friction welding process. permanent modification, reduce welding efficiency and increase production cost

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