Thermo-vibration combined progressive forming device and forming process of magnesium alloy thin-walled parts

Abstract

The invention relates to a thermal vibrating integrated incremental forming device for a magnesium alloy thin-wall part and a forming technology thereof. The device comprises an industrial manipulator, a heating box, a cooling box, a vibration generator, an amplitude-change pole, a tool head and a blank pressing block, wherein the blank pressing block for pressing the magnesium alloy thin-wall part is screwed to the side edge of a heating port in the upper end of the heating box; the cooling box is mounted at the lower end of the heating box; the vibration generator is mounted at the tail endof the industrial manipulator; the upper end of the amplitude-change pole is fixedly connected to the output end of the vibration generator, and the lower end of the amplitude-change pole is connectedto the tool head which acts on the magnesium alloy thin-wall part. The device is simple and reasonable in structure; the thermal assisted and vibrating assisted plastic processing modes are combined;the low-amplitude vibrating point pressing formation of the magnesium alloy thin-wall part can be realized through a frequency-adjustable and amplitude-adjustable vibration generator. Therefore, theformation limit and the formation quality of a magnesium alloy material can be improved; and moreover, the formation technology chain of the magnesium alloy thin-wall part is shortened, and as a result, the short plastic processing process is achieved.

Description

Technical field: [0001] The invention relates to a thermal-vibration combined progressive forming device and a forming process for magnesium alloy thin-walled parts. Background technique: [0002] Magnesium alloy, as one of the lightest metal structural materials currently used (only 2 / 3 of aluminum and 1 / 4 of steel), has high specific strength / specific stiffness, radiation protection, excellent vibration and damping performance, and is easy to recycle. Series of advantages, and known as "21st century green engineering materials". With the increasing requirements of light weight, energy consumption reduction and pollution reduction, magnesium alloys are widely used in defense equipment, aerospace, automobile, biomedical and other industries. However, due to the close-packed hexagonal crystal structure of magnesium alloy, there are few slip systems at room temperature, resulting in low plastic deformation performance, which seriously restricts the application of magnesium al...

AI Technical Summary

Problems solved by technology

[0007] The present invention makes improvements to the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the present invention is to provide a thermal-vibration combined progressive forming device and its forming process for magnesium alloy thin-walled parts. The design is reasonable and solves the problems of the prior art The surface quality of medium-magnesium alloy incremental forming process parts is difficult to control, defects are easy to form, and processing tools are severely worn and other problems and defects

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