Sustainable and efficient cooling in titanium milling for dental applications: A study on supercritical CO2 + MQL with focus on tool wear and surface topography

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-03-24 DOI:10.1016/j.wear.2025.206051

Armin Siahsarani , Amir Alinaghizadeh , Bahman Azarhoushang , Masuod Bayat , Robert Bösinger

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引用次数: 0

Abstract

Titanium alloys, commonly used in dental implants due to their biocompatibility and mechanical properties, pose significant machining challenges. Their low thermal conductivity leads to elevated cutting temperatures, accelerated tool wear, and compromised surface integrity. This study investigates the application of supercritical carbon dioxide (scCO₂) combined with minimum quantity lubrication (MQL) as an advanced cooling and lubrication strategy for milling titanium dental implant bridges, comparing its performance with conventional emulsion-based flood cooling. Milling experiments on dental geometries under varying cutting parameters evaluated tool wear, surface integrity, and material removal rates. The results reveal that the scCO₂ + MQL approach significantly reduces tool wear, improves surface quality, and enhances material removal rates compared to emulsion cooling. Specifically, tool flank wear decreased by over 190 %, while material removal rates increased by approximately 68 % during extended milling operations. These findings underscore the potential of scCO₂ + MQL to improve precision, efficiency, and sustainability in the manufacturing of dental implants.

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.