About this Research Topic

Background

The demand for 4K and 8K resolution imaging devices enriching our lives is increasing these days. In the smartphone market, more and more small and highly accurate aspherical lenses will be required in the future. In the field of automobiles, functional optical devices like communication lighting applications are currently attracting attention. In order to provide these cutting-edge optical devices, conventional machining with conventional machine tools is not applicable to the manufacturing process because sharper diamond tools and higher positioning accuracy are essential. Therefore, it is necessary to develop Ultra-Precision Machining Technologies and Measurement Technologies that enable the production of high-quality mold and die or large-aperture lenses with complex shapes.

Ultra-Precision Machining is the frontier of research in Production Engineering and needs to be further developed from both the academic and industrial viewpoints. Modeling based on process analysis in Ultra-Precision Machining, especially for high-quality optical parts, has not been sufficiently performed and systematized. Measurement Technologies also play an essential role in the development of Ultra-Precision Machining such as tool tip shape measurement and contact detection of tool and material. As well as these, Measurement Technologies for machined materials with measurement of high aspect ratio structure are needed to address.

This Research Topic contributes to the understanding of the interaction between tool and material, to the development of models in Ultra-Precision Machining of advanced materials, and to the creation of advanced machining technologies to provide higher quality parts.

This Research Topic covers the following areas of research:

• Ultra-Precision Machining (UPM) process of hard-and-brittle materials and advanced materials
• Advanced cutting/grinding tool technology for UPM
• Unconventional machining processes for UPM
• Vibration-assisted UPM including fast tool servo
• Precision machine technologies and precision machine elements
• Process monitoring and process control for UPM, Digital Twin for UPM, IoT based technology for UPM
• Tool path generation
• Contact/non-contact measurement technology
• On-machine/in-situ/in-process measurement
• Error assessment and compensation
• Surface integrity and related technologies

We are interested in contributions that cover academic research and industrial technology.

Keywords: Ultra-Precision Cutting, Ultra-Precision Grinding, Vibration-Assisted Machining, Optical Measurement Technology, Contact Measurement Technology, Hard-and-Brittle Materials, Non-Metal Materials, Surface Integrity, Cutting Tool Technology, Grinding Tool Technology

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