About this Research Topic
As one of the key technologies for the development of emerging industries, micro nano manufacturing technology has extremely important applications in communication electronics, aerospace and other industries. The functional microstructure of material surface provides a new idea for reducing energy consumption, optimizing machining defects and improving service performance. However, these parts have been used in extreme working environments such as high temperature, high pressure and high speed for a long time, and their microstructure degrades and eventually fails because of the environment. Therefore, it is very important to study the serviceability of materials under complexed operating environment.
The research on high-performance surface integrity machining and its serviceability under complexed operating environment is proposed to weaken the effect of machining defects (such as scratches) on material environmental degradation. The research of bionic microstructure functional surface is integrated into the optimization of machining defects. At the same time, the bionic microstructure corresponding to the working environment is designed to optimize the defects into functional surface texture, to strengthen the resistance of materials due to environmental degradation. The laser processing technology is integrated into the traditional turning, milling, planning, grinding and other processing technologies to form a laser assisted processing or a laser collaborative processing system. It makes up for the difficulties of microstructure shape control in traditional processing technology, the low efficiency of ultrashort pulse laser processing and the difficulty of ensuring surface properties, which makes it possible to ensure the accuracy of functional microstructure and strengthen surface properties. The service performance of functional surface in complex working environment and its relationship with parameters such as residual stress, roughness and microhardness were studied.
This topic covers, but are not limited to, the following themes:
• New methods of multi energy field assisted machining such as laser, ultrasonic and electrochemistry.
• Characterization test and prediction of surface integrity parameters of special functional materials.
• Study on surface environmental degradation mechanism and simulation model of special functional materials.
• Study on anti-environmental degradation scheme of surface of special functional materials.
The research on high-performance surface integrity machining and its serviceability under complexed operating environment is proposed to weaken the effect of machining defects (such as scratches) on material environmental degradation. The research of bionic microstructure functional surface is integrated into the optimization of machining defects. At the same time, the bionic microstructure corresponding to the working environment is designed to optimize the defects into functional surface texture, to strengthen the resistance of materials due to environmental degradation. The laser processing technology is integrated into the traditional turning, milling, planning, grinding and other processing technologies to form a laser assisted processing or a laser collaborative processing system. It makes up for the difficulties of microstructure shape control in traditional processing technology, the low efficiency of ultrashort pulse laser processing and the difficulty of ensuring surface properties, which makes it possible to ensure the accuracy of functional microstructure and strengthen surface properties. The service performance of functional surface in complex working environment and its relationship with parameters such as residual stress, roughness and microhardness were studied.
This topic covers, but are not limited to, the following themes:
• New methods of multi energy field assisted machining such as laser, ultrasonic and electrochemistry.
• Characterization test and prediction of surface integrity parameters of special functional materials.
• Study on surface environmental degradation mechanism and simulation model of special functional materials.
• Study on anti-environmental degradation scheme of surface of special functional materials.
Keywords: Material surface, Processing technology, Integrity, Serviceability, Operating environment
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