Multi-column regulation type pressing die and method for forming titanium alloy double-curvature plate by using same

Abstract

The invention discloses a multi-column regulation type pressing die and a method for forming a titanium alloy double-curvature plate by using the same. The multi-column regulation type pressing die comprises an upper die base plate, an upper molding surface, a lower die base plate and a lower molding surface, wherein a plurality of length adjustable upper die columns are fixed on the upper die base plate and extend vertically downwards from the upper die base plate; the upper molding surface consists of lower end faces of the plurality of upper die columns together; a plurality of length adjustable lower die columns are fixed on the lower die base plate and extend vertically from the lower die base plate upwards; the lower molding surface consists of upper end faces of the plurality of lower die columns together; and the upper die columns correspond to the lower die columns in a one-to-one mode. The multi-column regulation type pressing die can flexibly adjust the shapes of the molding surfaces by changing the lengths of the upper die columns and the lower die columns, has the advantages of multifunction and low manufacturing cost, and is suitable for pressing various plate materials singly or on a small scale.

Description

technical field [0001] The present invention relates to a mold and a forming method thereof, more specifically, to a mold and a method for pressing and forming a plate. Background technique [0002] Titanium alloys have the advantages of low density, high strength, high toughness, and good sound permeability. In the field of aerospace, titanium alloys are widely used, mainly by casting to make parts with complex structures. With the development of the shipbuilding industry, the application of special marine materials has been further expanded. Some low-alloy steels, high-strength alloy steels, stainless steels, and low-carbon steels can no longer meet the requirements of some special marine structures. In addition to the above advantages, titanium alloys are more resistant to seawater corrosion and have become ideal materials for special marine structures. . [0003] my country has carried out the design and test of titanium alloy and titanium-steel composite materials use...

AI Technical Summary

Problems solved by technology

[0004] At present, the complex structures of some ships use FRP as the hull material, mainly because of its high corrosion resistance and sound permeability. It has been well dealt with and solved, resulting in leakage problems at the joints, prompting the development of complex structures of titanium alloys for actual ship applications without delay

[0005] A part of a ship with a complex structure is usually composed of more than two hundred titanium alloy plates with different hyperbolic curvatures. Titanium alloy materials have high toughness and high rebound rate after processing. A flat titanium alloy plate should be processed by ordinary cold and hot processing. The forming method is processed into a double-curvature board whose deviation of the double curvature is not more than 2mm, and the edge of the board is not curved or wavy. The maximum curvature in one direction is 62mm, and the ordinary processing method is more difficult.

In addition, the complex structure of a ship is generally used for specific parts, with a large number and different curvatures, so it is impossible to design and manufacture a dedicated die for each board

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