Synergistic self-resistance electric heating type plate auto-increment spinning forming device and method

Abstract

The invention provides a synergistic self-resistance electric heating type plate auto-increment spinning forming device and method. The synergistic self-resistance electric heating type plate auto-increment spinning forming device comprises a spinning wheel, a high-frequency low-voltage power source, a high-temperature insulated spacer, a cable, a resistor rod, an infrared thermometer, a plate, acarbon brush and a fixing frame of the carbon brush. The spinning wheel and the resistor rod are located on the same arc surface of the plate and are symmetrically distributed (the spinning wheel andthe resistor rod are separated by 180 degrees), the spinning wheel and the resistor rod synergistically act to complete the heating and forming process. The synergistic self-resistance electric heating type plate auto-increment spinning forming device is compact in structure, the synergistic self-resistance electric heating type plate auto-increment spinning forming method is simple, the heating and formation problems of the material which is high in strength at normal temperature, large in forming force and difficult to deform are solved, and the synergistic self-resistance electric heating type plate auto-increment spinning forming method is suitable for auto-increment spinning formation of pure titanium plate materials, titanium alloy plate materials, magnesium alloy plate materials andthe like.

Description

technical field [0001] The invention relates to the field of sheet metal spinning, in particular to a self-incrementing sheet spinning device and method in conjunction with self-resistance electric heating. Background technique [0002] Titanium and titanium alloys have good mechanical properties, good corrosion resistance, high specific strength, and low density. They occupy an important position in the industrial field, especially in aerospace and military fields. Titanium and its alloys have good plasticity , but difficult to deform at room temperature. [0003] The traditional flame jet heating spinning has the disadvantages of wasting energy, complex equipment, high price, and difficult heat insulation treatment from the machine itself, which limits its development. [0004] The overall self-resistance heating progressive forming method has the advantages of low equipment cost and uniform temperature distribution, but the heating time is long, the forming accuracy is n...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: the forming mechanism is complex, and the selection of process parameters depends on a huge experimental database and operating experience

[0007] The laser heating method has a fast heating speed, but the heating point changes continuously with the change of the spinning position, and there is a problem that the control is difficult, and the cost of the laser equipment is higher

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