A method for controlling temperature uniformity during superplastic forming of aluminum alloy parts

Abstract

The invention relates to a temperature uniformity control method during aluminum alloy part superplastic forming. The method includes the following steps that firstly, superplastic forming molds are manufactured; secondly, a superplastic forming upper platform and a superplastic forming lower platform are manufactured, and heating area of the equal number are divided; thirdly, temperature monitoring areas of the same number are divided for the superplastic forming upper mold and the superplastic forming lower mold; fourthly, according to the heating areas of the superplastic forming upper platform and the superplastic forming lower platform and the temperature monitoring areas of the superplastic forming upper mold and the superplastic forming lower mold, installing and clamping are performed; fifthly, the heating areas of the superplastic forming upper platform and the superplastic forming lower platform are powered on to rise temperature for heating; sixthly, the temperature of the temperature monitoring areas of the superplastic forming upper mold and the superplastic forming lower mold is monitored in real time through a temperature monitoring device, and the temperature risingspeed of the heating areas of the superplastic forming upper platform and the superplastic forming lower platform is controlled so that it can be achieved that the temperature of the temperature monitoring areas of the superplastic forming molds can be uniform; and seventhly, aluminum alloy part superplastic forming is performed.

Description

technical field [0001] The invention belongs to the field of precision sheet metal processing, and relates to a temperature uniformity control method during superplastic forming of aluminum alloy parts, which is suitable for superplasticizing large-sized aluminum alloy parts with high requirements for dimensional accuracy, surface accuracy and surface quality. take shape. Background technique [0002] Due to the advantages of integrity and light weight, aluminum alloy superplastic forming parts are widely used in aerospace, rail transit, weaponry and other fields. At present, in the aluminum alloy superplastic forming process, due to the complex shape of the parts, the superplastic forming mold is large in size and irregular in shape, so the temperature of each part of the mold is not uniform during the superplastic forming heating process. This will not only affect the service life of the mold, but also cause the temperature of each part of the aluminum alloy blank to be u...

AI Technical Summary

Problems solved by technology

At present, in the superplastic forming process of aluminum alloy, due to the complex shape of the parts, the superplastic forming mold is large in size and irregular in shape, so the temperature of each part of the mold is not uniform during the superplastic forming heating process.

This will not only affect the service life of the mold, but also cause the temperature of each part of the aluminum alloy blank to be uneven, resulting in uneven deformation of the aluminum alloy parts during the superplastic forming process, which greatly affects the overall quality of the superplastic formed parts

Images