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

Abstract

The invention provides a multi-stage pressurizing friction welding control and quality evaluation method based on flash vision. The multi-stage pressurizing friction welding control and quality evaluation method comprises the steps of workpiece installation and position adjustment, friction welding process starting, welding flash detection, welding process control and post-welding quality evaluation. According to the method, a multi-stage pressurizing friction welding device comprising a welding machine base platform (10), a welding machine rotating end (20), a welding machine moving end (30), an oil pressure station (40), a camera support (50), a computer control system (60) and a welding machine control system (70) is adopted for welding. According to the method, a welding joint does not need to be damaged, the quality of the welding joint in the friction welding process can be evaluated timely, efficiently and accurately, and process control can be carried out, so that the welding detection time is shortened, the welding efficiency is improved, the production qualification rate is guaranteed, and the production cost is reduced.

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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