Clamper of cold upsetting tester used for titanium alloy wire materials

Abstract

The invention relates to a clamp for a cold upsetting tester of titanium alloy wires, which comprises an upper clamp, a lower clamp and a material mechanical property tester connected with the upper clamp and the lower clamp through large-bore screw threads. The clamp is characterized in that the center positions of the support faces of the upper clamp and the lower clamp are provided with grooves with depths of 5mm, the grooves are used for placing and positioning support boards and preventing the support boards from protruding accidentally; upper support boards and lower support boards which are cylinders with the thicknesses of 10 mm are arranged in the grooves, and the diameters of the supports boards are smaller than those of the grooves. The invention has the advantages that the tester is simple and practical and convenient for assembly and disassembly and has efficient and safe testing process, is easy to accurately realize the cold upsetting test of titanium alloy wires with set speed and requirements of forging reduction ratio on a common material tester, is favorable for the test analysis, has very good cold upsetting effect of the sample, low test cost and changeable support boards, thereby belonging to the very efficient and practical cold upsetting tester of the titanium alloy wires.

Description

technical field [0001] The invention relates to a jig used for a cold upsetting test device of titanium alloy wire, which belongs to the technical field of product structure. Background technique [0002] The upsetting performance at room temperature is the most important mechanical property of fastener wire and the basic index for evaluating its metallurgical quality. Titanium alloy wire has many advantages such as high specific strength and corrosion resistance, and has become an ideal material for fastener structures in aviation, aerospace and other departments. At present, the demand for its development and engineering application is becoming increasingly prominent and urgent. Compared with the conventional upsetting test method (GB / T233—2000) for metal materials, titanium alloy wire puts forward higher requirements for the cold upsetting test method during the development process: [0003] (1) It is required to carry out the upsetting test at a constant speed within th...

AI Technical Summary

Problems solved by technology

[0007] Obviously, the commonly used impact upsetting methods and test devices are far from meeting the above requirements.

Not only the upsetting speed is much higher than the given speed range, but also the upsetting speed is uncontrollable; after the forging ratio increases, the phenomenon of twisting and forging skew and forging height does not meet the requirements often occurs, and this method also cannot obtain upsetting The performance change curve of the wire material during the process

At present, the test equipment used in high-temperature upsetting of titanium alloys cannot meet the needs of large-tonnage and large-scale testing of room-temperature upsetting, and the testing cost is high.

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