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Texture design method for improving surface anti-attrition performance

A design method and surface texture technology, applied in design optimization/simulation, computer-aided design, calculation, etc., can solve problems such as no specific design standards, reduce surface friction coefficient, ensure stability and service life, The effect of reducing wear

Pending Publication Date: 2022-06-28
ZHEJIANG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if one wants to further improve the anti-friction performance of the surface, the design of the size, arrangement density and arrangement method of the V-shaped texture has great objectivity. The existing V-shaped surface texture technology does not give a specific design standards

Method used

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  • Texture design method for improving surface anti-attrition performance
  • Texture design method for improving surface anti-attrition performance
  • Texture design method for improving surface anti-attrition performance

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Embodiment

[0043]A texture design method for improving the surface wear reduction performance. First, the basic shape and size range of the microtexture are determined. Modeling of individual microtextures and numerical simulations to optimize the basic shape and size of microtextures. Further determine the micro-texture spacing size according to the density of the designed variable density arrangement, establish a multi-column texture arrangement model with different micro-texture depths, and further optimize the micro-texture depth parameters through numerical simulation to complete the surface wear reduction of the aluminum alloy. Functional microtexture design.

[0044] The specific process is as follows:

[0045] 1. The basic shape and size range of the designed microtexture

[0046] like figure 1 As shown, the basic shape of the designed microtexture is a V shape, which is composed of two equilateral triangles. The design shape parameters include the outer side length O, inner s...

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Abstract

The invention discloses a texture design method for improving surface anti-attrition performance, and belongs to the technical field of aluminum alloy surface treatment and surface texture design. The method comprises the following steps: S1, selecting textures processed on the surface of the aluminum alloy, and determining the basic shape of a single micro-texture and the size range of the basic shape in the selected surface textures; s2, modeling is conducted on a single microstructure, and the basic shape and size of the microstructure are optimized through numerical simulation; and S3, according to the structure subjected to numerical simulation in the step S2, obtaining the optimal shape and size of the single micro-texture. Through the variable-density texture arrangement mode, remarkable pressure difference and flow velocity difference can be generated at the bottom of the micro-texture and the surface of the aluminum alloy, negative pressure is generated at the bottom of the texture along with the backflow phenomenon to form the gas-liquid coexisting cavitation phenomenon, and asymmetric positive pressure is formed on the surface of the aluminum alloy so that a friction pair can be separated from the surface; the surface friction coefficient is reduced; and the abrasion is reduced.

Description

technical field [0001] The invention belongs to the field of aluminum alloy surface treatment and the technical field of surface texture design, and particularly relates to a texture design method for improving surface wear-reducing performance. Background technique [0002] In recent years, the research on the anti-wear mechanism of aluminum alloy surface has attracted extensive attention of researchers. In the aerospace field, aluminum alloy is the main raw material for manufacturing aerospace equipment. During the service process, after the transmission system of aerospace equipment is damaged due to the wear and tear of the aluminum alloy surface of its components, the transmission system often enters a lean operation state due to insufficient oil supply and failure to form oil lubrication, which affects the stability of the equipment. The surface texture can maintain the normal operation of the transmission system for a certain period of time because it can store lubri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/28G06F30/17G06F111/10G06F113/08G06F119/14
CPCG06F30/23G06F30/17G06F30/28G06F2111/10G06F2113/08G06F2119/14
Inventor 朴钟宇刘静彭光健丁丛候文涛叶森斌周振宇
Owner ZHEJIANG UNIV OF TECH