Method for bionic coupling of strengthened and toughened mechanical parts

Abstract

The invention belongs to the technical field of the design, manufacturing and processing of strengthened and toughened mechanical parts, relates to a method for controllably improving the strength and toughness of parts and specifically relates to a method for the bionic coupling of strengthened and toughened mechanical parts. The method is characterized in that bionic coupling unit bodies formed by coupling bionic morphology coupling elements with strengthened structure coupling elements are distributed on the surfaces of the parts; and due to the regular distribution of the bionic coupling unit bodies and the strengthened structure superior to the raw material, the strength and toughness of the parts can be greatly and controllably adjusted after the parts are treated by using the method, thereby effectively improving the properties of the material, and greatly prolonging the service life of the parts. Meanwhile, the invention breaks through the traditional idea of modifying the whole material or whole surface, and utilizes laser, electric pulses and other high-energy beams as processing means to carry out local treatment on parts based on bionic principles, thereby having the great advantages of low preparation cost, high cost performance, no pollution, environmental protection and the like.

Description

technical field [0001] The invention belongs to the technical field of design, manufacture and processing of toughened mechanical parts, relates to a method for controllably improving the strength and toughness of parts, and in particular relates to a method for bionic coupling to strengthen and toughen mechanical parts. Background technique [0002] On the one hand, modern industry is developing in the direction of high speed, high temperature and high pressure, which puts forward higher requirements on the strength and toughness of metal mechanical parts. According to statistics, about 80% of the failures and scraps of various parts are caused by the strength or toughness of metal materials not adapting to the current high-demand service environment, which has caused major economic losses and unpredictable hazards. . On the other hand, it is hoped to reduce material consumption when manufacturing metal mechanical parts, improve mechanical efficiency, and reduce energy con...

AI Technical Summary

Problems solved by technology

For example, it has high strength and high toughness at the same time, but the strength and plasticity of the same material are a pair of contradictions. It is difficult to balance the material with high strength and good plasticity, which restricts this kind of material. It is often difficult to significantly improve the service life of components with improved performance

[0005] Second, the cost of improving components is high

Although some methods and technologies are favored by some researchers and users, such as: developing high-strength new materials, improving heat treatment processes, etc., it is necessary to improve the overall parts in industrial production to improve strength, plasticity, and prolong service life. It is often limited by the relatively expensive price; at the same time, a large part of the failure and scrapping of various parts is caused by the failure of the material surface, so the ideal technical solution is to modify the surface of the parts to maintain the heart The parts remain unchanged, but the current modification of the overall parts often results in a certain degree of waste of resources

[0006] Third, the process of improving materials is often complicated and difficult to control, which not only reduces the manufacturability and increases the production cost, but also makes the improvement effect only have a certain degree of optimization, and the controllability of the degree of optimization and the direction of optimization cannot be realized.

[0007] Therefore, the current improvement process often has a certain degree of limitation in production and application, and it cannot be widely and quickly applied to various parts.

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