Application of Surface Microtexture Technology

Abstract

Background: Surface condition of mechanical parts has a significant impact on the machine performance. The use of surface microtexture technology based on bionics is an effective method to improve the comprehensive performance of the surface of machine parts. Surfaces with microscopic pits, convex-hulls, microgrooves, and scale textures can reduce wear, improve friction, enhance lubrication, decrease drag, and minimize noise. Surface microtexture technology has been widely used in many types of machinery, embodying various properties in working conditions. Objective: The purpose of this study is to provide an overview of recent patents and related research on surface microtexture technology, and to serve as a guide for future applications. Methods: The paper describes the development of surface microtexture technology, reviews the representative patents on surface microtextures and their applications in industrial field, including cutting tools, bearings, gears, blades, etc. The advantages and disadvantages of various surface microtextures are discussed. Results: In this study, the influence of surface microtexture on friction, wear, lubrication, sealing, noise reduction, and hydrophobicity is examined through the analyses of various microtexture produts. The main problems in future development of surface microtexture technology are summarized. Conclusion: Machine elements with different types of microtexture perform different functions. The geometrical parameters of the microtexture contribute greatly to the surface properties of the machine elements. Therefore, the surface performance of machine elements can be improved by designing and optimizing the geometric parameters of the microtexture. In the future, more patents focused on surface microtexture will be reported.