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Turning machining technology for TiNi shape memory alloy

A memory alloy and processing technology, applied in the field of shape memory alloys, can solve the problems of low efficiency, high cost, and low pass rate of turning processing, and achieve the effects of improving heat dissipation conditions, good bending strength and improving processing quality.

Inactive Publication Date: 2019-01-08
安徽新芜精密装备制造产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the technical problems existing in the background technology, the present invention proposes a turning process of TiNi shape memory alloy to improve the defects of low pass rate, high cost and low efficiency of the turning process of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A turning process of a TiNi shape memory alloy, the process comprising the following steps: turning the annealed TiNi shape memory alloy; during the turning process, the cutting temperature is 660°C.

Embodiment 2

[0025] A turning process of a TiNi shape memory alloy, the process comprising the following steps: turning the annealed TiNi shape memory alloy; in the turning process, the cutting temperature is 680°C;

[0026] Wherein, in the turning process, the cutting speed is 30m / min.

Embodiment 3

[0028] A turning process of a TiNi shape memory alloy, the process comprising the following steps: turning the annealed TiNi shape memory alloy; in the turning process, the cutting temperature is 670°C;

[0029] Wherein, in the turning process, the cutting speed is 40m / min;

[0030] In the turning process, the cutting depth is 2 mm;

[0031] In the turning process, the feed rate is 0.1mm / r;

[0032] In the turning process, the turning tool material is YG hard alloy;

[0033] In the turning process, the parameters of the turning tool are as follows: the rake angle is 3°; the back angle is 22°; the main declination angle is 35°; the secondary declination angle is 12°; the blade inclination angle is -5°. The roughness of each knife surface of the turning tool during sharpening is less than 0.4 μm;

[0034] The specific operation of the annealing treatment is: heating the TiNi shape memory alloy to 210°C in a vacuum furnace, keeping it warm for 60 minutes, and cooling to room t...

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Abstract

The invention relates to the technical field of shape memory alloys, in particular to a turning machining technology for a TiNi shape memory alloy. The machining technology comprises the following steps that turning treatment is conducted on the TiNi shape memory alloy obtained after annealing treatment, and in the turning treatment process, the cutting temperature is 650-700 DEG C. The turning machining technology for the TiNi shape memory alloy has the high machining quality, efficiency and qualification rate and the low machining cost.

Description

technical field [0001] The invention relates to the technical field of shape memory alloys, in particular to a turning process of TiNi shape memory alloys. Background technique [0002] Shape memory alloys (shape memory alloys, SMA) are materials composed of two or more metal elements that have a shape memory effect (shape memory effect, SME) through thermoelasticity and martensitic transformation and their inversion. Shape memory alloy is currently the material with the best shape memory performance among shape memory materials. So far, more than 50 kinds of alloys with shape memory effect have been found. [0003] In electric vacuum devices such as traveling wave tubes, klystrons and other products, the size parameters of the electron gun are very precise, and the assembly accuracy between the cathode, anode and grid is required to reach ±0.01mm, and such devices have so far been Manual assembly is adopted, and the degree of automation is extremely low. It often needs to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B1/00
CPCB23B1/00
Inventor 江祝苗
Owner 安徽新芜精密装备制造产业技术研究院有限公司
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