Test device for mechanical properties of metal material micro tensile sample

Abstract

The invention discloses a test device for mechanical properties of a metal material micro tensile sample. The test device comprises a first carbon steel clamp outer module, a second carbon steel clampouter module, a first hard alloy clamp inner module, a second hard alloy clamp inner module and a clamping device, wherein the first carbon steel clamp outer module is square and provided with a first notch; the first hard alloy clamp inner module is arranged in the first notch, movably connected with the first carbon steel clamp outer module and provided with a first tensile sample notch; the second hard alloy clamp inner module is arranged in a second notch, movably connected with the second carbon steel clamp outer module and provided with a second tensile sample notch, and a tensile sample cavity for placing the tensile sample is formed between the first tensile sample notch and the second tensile sample notch; the clamping device is arranged on the first hard alloy clamp inner moduleand the second hard alloy clamp inner module and is used for fixing the tensile sample. The device has good clamping effect and test stability.

Description

technical field [0001] The invention relates to a mechanical testing device, in particular to a mechanical property testing device for a metal material miniature tensile sample. Background technique [0002] Metals and their alloys have excellent processing properties and mechanical properties, and have been used as high-quality structural materials. However, traditional metal materials can no longer meet the needs of the rapid development of modern society, so people are keen to design and develop higher-strength metal structural materials in recent years. In the past 30 years, there have been remarkable developments in nano-metallic bulk materials and bulk metallic glass materials, both of which have remarkably high strength and high hardness. However, due to the preparation technology, these two types of materials are difficult to be mass-produced, and their size is also greatly limited. Therefore, the testing of mechanical properties of materials is also subject to gre...

AI Technical Summary

Problems solved by technology

[0005] The present invention designs and develops a mechanical property testing device for micro tensile specimens of metal materials. The purpose is to solve the problem of difficult clamping and difficult testing of the mechanical properties of micro tensile specimens of metal materials without clamping tight or slipping. The sample is automatically centered and has a good clamping effect

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