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High-strength titanium alloy pipe surface hardening method

A technology for titanium alloys and pipes, applied in the field of material processing, can solve the problems of no processing technology and no titanium alloys.

Inactive Publication Date: 2019-05-14
青岛四通八达商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patents CN101503755, CN101502881, etc. only provide ultrasonic metal surface processing devices, and do not give specific processing techniques
[0013] Up to now, there is no relevant processing technology report on the use of ultrasonic impact processing to improve the surface hardness of titanium alloys

Method used

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Embodiment Construction

[0029] The invention provides a method for surface hardening of high-strength titanium alloy pipes. Specifically, a lathe, an ultrasonic generator with a frequency of 30KHz, an ultrasonic surface processing device and a special tool for ultrasonic processing are used to harden the surface of high-strength titanium alloy pipes by ultrasonic impact processing. Taking TC10 titanium alloy pipe as an example, the surface ultrasonic impact processing technology is as follows:

[0030] (1) The equipment used in the ultrasonic impact processing technology includes a lathe, an ultrasonic generator with an output frequency of 30KHz, an ultrasonic surface processing device and a special tool for ultrasonic processing;

[0031] (2) Install the special tool for ultrasonic processing on the tool holder of the lathe;

[0032] (3) Connect the cables connecting the ultrasonic generator, the ultrasonic surface processing device and the special tool for ultrasonic processing;

[0033] (4) Clamp...

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Abstract

The invention discloses a high-strength titanium alloy pipe outer surface hardening method and belongs to the technical field of material processing. Particularly, an ultrasonic machining special cutting tool is mounted on a tool rest of a lathe; an ultrasonic generator at the frequency of 30 KHz is used for conducting ultrasonic impact hardening machining on the outer surface of a titanium alloypipe; the rotating speed of the lathe is regulated to control the rotating linear speed of the outer surface of the titanium alloy pipe within 10-20 m / min and control the longitudinal feeding speed ofthe ultrasonic machining special cutting tool within 0.15-0.3 mm; after completion of machining, the current value of ultrasonic equipment is regulated to 0.5 A or below, and the ultrasonic equipmentis shut down. According to the high-strength titanium alloy pipe outer surface hardening method, the high-strength titanium alloy pipe is subjected to surface hardening on the lathe through ultrasonic machining, and the outer surface of the high-strength titanium alloy pipe can achieve the optimal ultrasonic hardening effect through technological operation. Through the method, the hardness and wear resistance of the outer surface of the titanium alloy pipe can be effectively improved, and the surface roughness of the titanium alloy pipe can be reduced.

Description

technical field [0001] The invention belongs to the technical field of material processing, in particular to a method for hardening the outer surface of a high-strength titanium alloy pipe. In particular, it relates to an ultrasonic impact hardening process for the outer surface of a titanium alloy pipe, which can effectively improve the hardness and wear resistance of the outer surface of the titanium alloy pipe and reduce surface roughness. Background technique [0002] High-strength titanium alloy pipes have the characteristics of high strength, low density, good corrosion resistance and heat resistance, and are ideal materials for key parts in the fields of aviation, aerospace, petroleum, chemical industry, and ships. However, due to the low hardness, high friction coefficient and poor wear resistance of titanium alloy, its service life and application range are affected to a certain extent. Using appropriate surface hardening technology to improve the surface hardness ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18
Inventor 吕淑敏
Owner 青岛四通八达商贸有限公司
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