Method for improving performance of superplastic formed component material

A technology of superplastic forming and material properties, applied in the field of superplastic forming, can solve the problems of weak second phase, high difficulty and high cost, and achieve the effect of reducing size and area, improving component performance and low cost

Active Publication Date: 2019-01-15
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for improved materials used during manufacturing processes such as plasma etchings or laser cutting. By applying pulsed electric currents before heat treatment at temperatures near 100 degrees Celsius (C), tiny holes called microstructures may appear inside these components without affecting their function properly. These techniques help improve mechanical strength by reducing weight while maintaining good electrical conduction paths through them.

Problems solved by technology

This patents discuss various technical techniques for improving the properties of metal parts called superplasty or shaping them into specific shapes without causing defects like cracks due to excessive residual stresses caused by conventional processes involving heat treatment. These challengings limit their practicality in industries where they may require durable products containing these types of metallics.

Method used

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  • Method for improving performance of superplastic formed component material
  • Method for improving performance of superplastic formed component material
  • Method for improving performance of superplastic formed component material

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Embodiment Construction

[0029] The invention provides a method for improving the material properties of superplastic forming components. By applying a short-time pulse current to superplastic forming components such as aluminum alloy, aluminum-lithium alloy, and magnesium alloy, internal voids are reduced and component performance is improved. The present invention will be further described in detail through the accompanying drawings and specific embodiments below.

[0030] As shown in the figure, this embodiment takes high-temperature superplastic inflation forming of a 7B04 aluminum alloy cylindrical part as an example by applying a pulse current, and the specific implementation steps are as follows:

[0031] 1. Current loop design.

[0032] According to the characteristics of the cylindrical part, the current circuit design is carried out, and the follow-up electrodes 4 and 5 attached to the cylindrical part are installed in the lower mold 2 of the forming mold. In this embodiment, the follow-up elec

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Abstract

The invention discloses a method for improving the performance of a superplastic formed component material. The method comprises the following steps of 1, installing two random electrodes in a formingmold, connecting the two random electrodes to a pulsed power supply to form a conductive path in the area, between the two random electrodes, of a superplastic formed component; 2, putting a plate blank of the superplastic formed component into the forming mold, and starting heating; conducting heat preservation for 10-30 min when the temperature reaches the superplastic forming temperature of the material; turning on an air inlet valve, and introducing argon at the pressure speed of 0.03-0.05 MPa/min; conducting pressure maintaining for 10-30 min to complete superplastic forming when the airpressure reaches the forming pressure intensity; and 3, turning on the pulsed power supply at the voltage of 0-150 V, the frequency of 100-800 Hz and the duration time of 20-60 s. By means of the technical scheme, the hollowing-out size and area can be effectively reduced, and the performance of the component is improved.

Description

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Claims

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Application Information

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Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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