Aluminum alloy sheet testing system and method

Abstract

The invention discloses an aluminum alloy sheet testing system. The aluminum alloy sheet testing system comprises a heating module, a cooling module and a stretching device, wherein a clamping part inthe stretching device clamps an aluminum alloy sheet to be tested, the aluminum alloy sheet is firstly moved to the heating module to be heated, then the aluminum alloy sheet is moved to the coolingmodule to be cooled, and the aluminum alloy sheet is stretched and loaded by the stretching device. The aluminum alloy sheet testing system has the main beneficial effects that the structure is simpleand compact, the temperature control module is integrated on a common tensile testing machine, aluminum alloy high-temperature deformation behavior testing under a complex process path is achieved, sample clamping is convenient, temperature data and strain data are reliable, and the testing efficiency is improved. According to the method, the temperature uniformity in the scale distance section of the sample is improved in a contact heating mode, the heating efficiency of the sample is improved, and the purpose of testing deformation and fracture behaviors related to the temperature and the strain rate under the aluminum alloy hot stamping condition is achieved.

Description

Technical field: [0001] The invention relates to the technical field of testing machines and precision instruments, in particular to a fixture for testing the behavior of aluminum alloy contact heating solution-quenching-tensile deformation. Background technique: [0002] At present, high-strength aluminum alloys are more and more widely used in aerospace and automotive lightweighting, but aluminum alloys have poor plasticity at room temperature, and the subsequent heat treatment process efficiency of stamping parts is low. Traditional methods cannot meet the process requirements. Alloy hot stamping, high-efficiency hot forming of aluminum alloy and other technologies: use high temperature to improve material plasticity, use cold die quenching to increase material supersaturation, and realize part shape and performance control at the same time. [0003] In order to accurately describe the forming process of parts under high temperature conditions, it is necessary to accurate...

AI Technical Summary

Problems solved by technology

However, the temperature distribution in the gauge length section of the sample is often not uniform enough, and it is difficult to ensure that the deformed position is uniformly deformed at the set temperature. At the same time, the cost of the Gleeble test platform is relatively expensive and the experimental process is complicated.

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