Forming mold and method for aluminum alloy profile

Abstract

The invention provides a forming mold for an aluminum alloy profile. The forming mold comprises an upper mold body (1) and a lower mold body (3). The upper mold body (1) is provided with a convex part (11), and the two sides of the convex part (11) are two upper mold body shoulders (12). The lower mold body (3) is provided with a concave part (31) corresponding to the convex part (11), and the two sides of the concave part (31) are two lower mold body shoulders (32); and a heating unit (6) is arranged on the lower portion of the surface of each lower mold body shoulder (32), and the heating units (6) are subjected to temperature control through a temperature control system (4). According to the forming mold for the aluminum alloy profile, the forming temperature and the forming time can be precisely controlled. Meanwhile, the invention provides a corresponding forming method; and the forming method has the characteristics of being easy to operate, high in forming precision and capable of avoiding limitation to the thickness and strength of the profile.

Description

technical field [0001] The invention relates to a forming die for aluminum alloy profiles and a forming method thereof, in particular to a forming die for aluminum-lithium alloy profiles and a forming method thereof. Background technique [0002] Reducing structural weight and improving service performance is one of the goals of aircraft structural design, and the third-generation aluminum-lithium alloy and its manufacturing technology are effective ways and technical guarantees to achieve this goal. The overall performance of the third-generation aluminum-lithium alloy is better than that of the 2000-series aluminum alloy, which overcomes the shortcomings of the second-generation aluminum-lithium alloy, such as anisotropy and poor toughness, and greatly improves the ability to resist crack growth; at the same time, the aluminum-lithium alloy has low density, High elastic modulus, high specific strength and high specific stiffness, good corrosion resistance, weldability and ...

AI Technical Summary

Problems solved by technology

Some of the aluminum-lithium alloy materials involved are still newly developed materials in foreign countries, and the relevant technical data such as material properties, processing technology standards, and structural inspection standards are not yet systematically grasped.

At the same time, due to the high sensitivity of aluminum-lithium alloy to temperature, the forming temperature and heating time have a great influence on the performance of the final part, so how to choose a reasonable time and temperature has become a difficulty in this process

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