Friction stir device with adjustable filling pressure and welding method

Abstract

The invention discloses a friction stirring device with adjustable filling pressure and a welding method. The device includes a frame, and two linear motors are installed on the frame. Each linear motor is connected with a slider, and a pair of first A bearing, a push rod is clamped between the first bearings, a support plate is fixedly connected to the lower end of the push rod, and the support plate is fixedly connected to the material guide rod; the lower part of the frame is fixedly connected to the support frame, and the support frame is sleeved with a second bearing , the second bearing sleeve is on the rotating device, and the rotating device is fixedly connected with the mixing head body. There is a material guide hole in the mixing head body, and a filling metal rod and a material guide rod are arranged in turn in the material guide hole. There are springs and pressure sensors. The invention solves the problem of welding defects caused by lack of metal in the friction stirring head in the past, controls the thrust of the linear motor, makes the filling pressure of the filling metal rod controllable according to actual needs, and selects the propulsion more scientifically to ensure that the filling metal is moderate and appropriate.

Description

technical field [0001] The invention relates to a friction stirring device and a welding method with adjustable filling pressure, belonging to the field of welding. Background technique [0002] Friction Stir Welding (FSW) is a solid-phase joining technology. Compared with the traditional welding process, FSW welding process has no smoke and spatter, no electromagnetic radiation, safety and environmental protection; the energy consumption during welding is low, and the workpiece before welding No beveling is required, no need to add welding wire and shielding gas during the welding process, energy saving and high efficiency; there will be no defects such as pores and cracks, and the overall performance of the joint is good; the structure of the welding equipment is simple, and it is easy to realize automatic welding and robot welding; at the same time, as long as the design is suitable FSW can realize welding of different positions, different sizes and different interfaces, ...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a friction stir device and welding method with adjustable filling pressure, which solves the problem of welding defects caused by lack of metal in the friction stir head in the past, and makes the weld more compact

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