Forming method for foam aluminum part with complex curved face

Abstract

The invention discloses a forming method for a foam aluminum part with a complex curved face. The forming method includes that steps that S1, a stamping die is provided, and the stamping die includesa convex die, a concave die, and a heating assembly; S2, two stacked metal plates are provided, a foaming agent and a stabilizer are evenly distributed between the two metal plates, and stirring friction welding is adopted to conduct multi-pass welding treatment on the two stacked metal plates to obtain a foam aluminum prefabricated body; S3, a heating mechanism or the heating assembly using the stamping die is provided to heat and insulate the foam aluminum prefabricated body in the S2; and S4, the heated foam aluminum prefabricated body is transferred to the stamping die, die closing is carried out, the foam aluminum prefabricated body is subjected to stamping and forming, die opening is carried out, the convex die is moved to be at a distance from the concave die, and the heating assembly is started to heat the foam aluminum prefabricated body, so that the foam aluminum prefabricated body completes remaining foaming action to obtain the foam aluminum part with the complex curved face. According to the forming method for the foam aluminum part with the complex curved face, not only can any desired curved face forming parts be formed, but also the whole process has short durationand low cost.

Description

technical field [0001] The invention specifically relates to a forming method of a foamed aluminum part with a complex curved surface, which uses friction stir welding as a solid phase connection to prepare a foamed aluminum part with a complex curved surface. Background technique [0002] As the lightweight development of automobiles is becoming more and more widespread, aluminum foam has gradually become one of the various lightweight materials with unique advantages. Aluminum foam has a unique pore structure that other lightweight materials do not have, and has many advantages such as low relative density, high specific strength, excellent mechanical response and good energy recovery ability, so it can be used in various parts of the vehicle that are vulnerable to impact. parts. [0003] Simple aluminum foam sandwich panels cannot meet the requirements of daily automobile use, and various complex curved panels that meet the requirements must be obtained through forming t...

AI Technical Summary

Problems solved by technology

[0003] Simple aluminum foam sandwich panels cannot meet the requirements of daily automobile use, and various complex curved panels that meet the requirements must be obtained through forming technology

At present, there are not many methods for preparing complex curved panels. Basically, traditional stamping and forming production lines are used to obtain ideal products. However, different panels obtained through traditional stamping have differences in internal cells and mechanical parameters, resulting in uncontrollable Various mechanical defects

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