Magnetic impulse warm-hot dynamic drive forming device and forming method for titanium alloy plate

Abstract

The invention discloses a magnetic impulse warm-hot dynamic drive forming device and a forming method for a titanium alloy plate. On the basis of a warm-hot electromagnetic forming method of the prior art, the problems of wrinkling and resilience in a forming process of a titanium alloy material are effectively solved for a purpose of carrying out plastic processing on a titanium alloy by means of simple technical means, such as additionally arranging aluminum driving pieces, respectively forming a plurality of ventilation holes in the front wall surface, the back wall surface, the left wall surface and the right wall surface of a concave die respectively and arranging a cooling water channel, which is communicated with the interior of the concave die, in the top of the concave die. The method for forming the aluminum alloy plate by adopting the magnetic impulse warm-hot dynamic drive forming device for the aluminum alloy plate is good in forming quality of parts, high in precision level, high in forming speed and short in workpiece forming period. The forming device and the forming method disclosed by the invention can be used for finishing forming of the titanium alloy plate through simple technical transformation on the basis of the prior art, the input-output benefit is very remarkable, and thus the forming device and the forming method have favorable market promotion application prospect.

Description

technical field [0001] The invention relates to a forming device and a forming method of a titanium alloy plate, in particular to a magnetic pulse thermodynamically driven forming device and a forming method of a titanium alloy plate. Background technique [0002] Titanium alloys are widely used in various fields because of their high strength, good corrosion resistance, and high heat resistance. [0003] However, due to its poor formability (at room temperature, the elongation rate is about 10%-20%), the amount of plastic deformation of titanium alloy materials is small, especially at low temperatures, the area of ​​plastic deformation is small, and it is easy to deform at the grain boundary. Stress concentration occurs, and once a large amount of deformation occurs, local transgranular fracture will occur. This makes the plastic forming of titanium alloy sheets prone to springback and cracking of parts, which directly affects the quality of formed parts. [0004] For the...

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Problems solved by technology

[0008] 1. The metal sheet is prone to cracking during the forming process, and the equivalent stress and strain are low, so high processing accuracy cannot be obtained

[0009] 2. The penetration of the magnetic field is transparent, and at 1 / 2 of the coil, the peak value of the magnetic pressure is low, and the efficiency of the magnetic field is low.

[0011] 4. During the plastic processing, the resistance generated by the air in the die is not good for forming, and the processing accuracy is reduced; and after the processing is completed, the formed workpiece can only be cooled by air, and the structure of the formed workpiece is not very fine, and the strength and wear resistance decreased sex

[0012] Up to now, for how to effectively solve the springback problem in the forming process of titanium alloy materials for plastic processing of titanium alloys, there has been no effective or relatively ideal solution in the prior art

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