Description: The achievement of high-efficiency and precise grinding of difficult-to-cut metals--like titanium alloys--is essential in the aerospace industry. However, the process often results in thermal damage to the workpiece surface, posing a significant technical challenge. While minimum quantity lubrication (MQL) has been used to aid titanium alloy grinding, its effectiveness is limited by insufficient heat dissipation and lubrication. As an alternative to normal temperature air for carrying micro-lubricants, Cryogenic air has shown promise in improving oil film heat transfer and lubrication performance in the grinding zone, thus reducing workpiece surface thermal damage. The experimental state of the technology demands more comprehensive studies on its effectiveness and on the underlying mechanisms. Thermodynamic Mechanism of Cryogenic Air Minimum Quantity Lubrication Grinding addresses these challenges by providing a theoretical framework for understanding and optimizing cryogenic air minimum quantity lubrication in grinding processes, particularly for titanium alloys. It explores the physical characteristics of lubricants under cryogenic conditions, the influence of low temperatures on atomization effects, droplet formation dynamics, and heat transfer mechanisms within the grinding zone. By establishing quantitative relationships between cryogenic air parameters and lubricant properties, the book lays a foundation for enhancing the cooling lubrication mechanism of cryogenic air MQL in grinding processes. Researchers, scholars, and graduate students in universities and research institutes focusing on machining will find this book invaluable, as it goes beyond the theoretical insights into practical solutions to enhance grinding efficiency and reduce thermal damage.
Brief description: Liu Mingzheng, doctor of engineering, graduated from Qingdao University of Technology, associate professor, engaged in the research of sustainable intelligent and clean precision manufacturing. He has undertook 6 research projects, including youth fund of National Natural Science Foundation and Youth Fund of Shandong Province Natural Science Foundation. He has published 24 high-impact academic papers, including 15 papers in SCI-JCR (1-2), 4 ESI hot papers and 7 highly cited papers. He has been granted 30 invention patents. Among them, there are 12 Chinese invention patents and 18 international invention patents from the United States, Australia and the United Kingdom. 4 patents have been licensed for industrialization. He has presided over and participated in the development of 9 corporate standards. He has won 9 science and technology awards, including the second prize of Science and Technology Progress of Shandong Province, first prize of Qingdao Science and Technology Progress Award, China Patent Excellence Award. He has applied for the young experts of Shandong Taishan Scholars for the first time, passed the letter evaluation and conference evaluation, and entered the comprehensive investigation stage. He is a key member of the team that created the journal of Intelligent and Sustainable Manufacturing.