A tensile testing method for ultra-thin metal foil

Through the system's sample preparation, clamping, processing, detection and tensile testing methods, the inefficiency problem of ultra-thin metal foil sample processing and testing in the existing technology is solved, the test success rate and detection accuracy are improved, and the testing needs of materials of different thicknesses are met.

CN119757038APending Publication Date: 2025-04-04SHANGHAI STAL PRECISION STAINLESS STEEL
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Patent Information

Application Number
CN202411982062.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

It is difficult to mass-produce ultra-thin metal foil tensile samples that meet the requirements with high standards and high standards, resulting in low test success rate, lack of effective test judgment standards, and lead to invalid stretching.

Method used

A systematic method including sample preparation, clamping, processing, detection and tensile testing is used. Specific steps include: preparing and clamping the sample, clamping the sample through the clamping assembly and performing side processing; detecting the roughness and notch of the edge of the sample; using a non-contact extensometer for tensile testing, and observing the stress and strain curve and fracture shape to determine the credibility of the test results.

Benefits of technology

It improves the success rate of sample processing, provides scientific and quantitative methods and standards for judging tensile samples, reduces testing disputes, improves the adhesion of upstream and downstream enterprises, and meets the testing needs of metal foils of different thicknesses, and enhances the global competitiveness of enterprises.

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Abstract

The present invention relates to a tensile test method for ultra-thin metal foil, comprising the following steps: sample preparation; sample clamping, clamping the sample by a clamping assembly; sample processing, performing side processing on the stacked sample and the clamping assembly matched therewith at the same time; tensile sample detection before testing; tensile sample detection; tensile result determination after testing, observing that the stress-strain curve obtained by a non-contact extensometer of the sample has no necking phenomenon, or observing that the fracture of the sample after being pulled apart shows shearing signs, judging that the tensile sample detection is credible and issuing a test report; when the tensile sample detection is judged to be unreliable, retaking the processed sample and repeating the detection. The present invention improves the sample processing method, batch processes high-standard samples, and improves the success rate of sample processing; provides a scientific and quantitative method and standard for judging tensile samples, which can reduce test disputes and improve the adhesion of upstream and downstream companies.
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