What is it about?
Lightweight materials like Carbon Fiber Reinforced Polymers (CFRPs) and Ti-6Al-4V alloys are critical in reducing fuel consumption and emissions in the aeronautic industry. This study reveals that using lubricated LCO2 can significantly enhance the machining quality of CFRP and titanium components. These results offer a more environmentally friendly alternative to traditional metalworking fluids (MWFs), preventing moisture-related degradation in composites while maintaining clean work areas.
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Why is it important?
The findings from this study are important for advancing environmentally friendly machining processes in the aeronautical industry. By showing that lubricated LCO2 combined with MoS2 can significantly improve surface quality in both CFRP and titanium drilling, this research presents a viable alternative to conventional metalworking fluids (MWFs), which pose environmental and health risks. Additionally, reducing the use of MWFs cuts waste management costs and lowers the environmental impact of manufacturing, aligning with sustainability goals. These advancements offer both economic and ecological benefits for aerospace production.
Perspectives
I believe that cooling and lubrication using liquid carbon dioxide (LCO2) offer significant potential to enhance cutting performance in applications where conventional emulsion-based coolants are unsuitable. This approach promotes cleaner and more sustainable manufacturing processes.
Iñigo Rodriguez
Mondragon Unibertsitatea
Read the Original
This page is a summary of: Improving surface integrity when drilling CFRPs and Ti-6Al-4V using sustainable lubricated liquid carbon dioxide, Chinese Journal of Aeronautics, July 2023, Tsinghua University Press,
DOI: 10.1016/j.cja.2022.09.004.
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