Tribology in Cryogenic Machining

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (15 February 2026) | Viewed by 1261

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, Federal University of São Carlos, Rod. Washington Luis Km 235, São Carlos 13565-905, SP, Brazil
Interests: machining processes; cutting tools; tribology; surface integrity; tool wear
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Guest Editor
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Interests: cutting; grinding; hybrid-energy machining; surface integrity
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Special Issue Information

Dear Colleagues,

Various technologies have been developed to improve the performance of machining processes sustainably. These technologies aim to avoid the use of traditional metalworking coolants as oil-based fluids can cause health and environmental damage. Within this context, cryogenic cutting has emerged as a cleaner and more environmentally friendly solution. However, its effect on tool wear, machined surface integrity, and environmental impact has not yet been thoroughly investigated. Moreover, production costs, consumption rate, and difficulties associated with its application are commonly neglected.

This Special Issue therefore intends to share the latest advances in applying cryogenic coolants in metal cutting operations, considering their drawbacks and benefits. Focusing on tribological aspects, it covers tool wear and surface integrity analysis and the machinability of different materials. Both theoretical and experimental investigations are highly welcome.

Prof. Dr. Carlos Ventura
Prof. Dr. Wengfeng Ding
Guest Editors

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Keywords

  • machining
  • cryogenic cooling
  • tool wear
  • surface integrity
  • cutting force
  • temperature
  • sustainability
  • tribology

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Published Papers (1 paper)

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Research

15 pages, 10135 KB  
Article
Cooling and Lubrication Performance Analysis in Ultrasonic Vibration-Assisted Grinding by Heat Pipe Grinding Wheel
by Shuai Wang, Yongchen Xie, Bo Pan, Ning Qian, Sławomir Pietrowicz, Wenfeng Ding and Yucan Fu
Lubricants 2026, 14(1), 30; https://doi.org/10.3390/lubricants14010030 - 9 Jan 2026
Viewed by 791
Abstract
Due to low thermal conductivity and high specific strength, nickel-based superalloys are prone to service performance degradation caused by thermal damage during traditional high-efficiency grinding processes. Although the heat pipe grinding wheel with minimum quantity lubrication (HPGW-MQL) technology can reduce the probability of [...] Read more.
Due to low thermal conductivity and high specific strength, nickel-based superalloys are prone to service performance degradation caused by thermal damage during traditional high-efficiency grinding processes. Although the heat pipe grinding wheel with minimum quantity lubrication (HPGW-MQL) technology can reduce the probability of thermal damage to a certain extent, further breakthroughs are still needed. Therefore, this study proposes a new integrated process of ultrasonic vibration-assisted grinding by heat pipe grinding wheel with minimum quantity lubrication (UVAG-HPGW-MQL), aiming to balance the requirements of green grinding and the optimization of grinding performance for nickel-based superalloys. However, the mechanism of action of ultrasonic vibration on the cooling and lubrication performance of the proposed process remains unclear. Given that, comparative experiments between UVAG-HPGW-MQL and HPGW-MQL were conducted, focusing on exploring the influence of ultrasonic vibration on their cooling and lubrication performance. The experimental results, obtained when the grinding speed, workpiece feed rate, and grinding depth were set at 15–35 m/s, 40–120 mm/min, and 0.05–0.25 mm, respectively, indicate that, compared with HPGW-MQL, ultrasonic vibration causes periodic “contact-separation” between grains and workpiece. This dynamic process shortens the contact length between grains and workpiece, leading to maximum reductions of 43.85%, 22.15%, 34.16%, and 30.77% in grinding force, grinding force ratio, grinding temperature, and specific grinding energy, respectively. On the other hand, the ultrasonic cavitation effect causes atomization of the lubricating oil film adsorbed on the workpiece surface, leading to a decrease in lubrication performance and resulting in a maximum increase of 27.27% in the friction coefficient. This study provides new theoretical support and technical approaches for the green grinding of nickel-based superalloys. Full article
(This article belongs to the Special Issue Tribology in Cryogenic Machining)
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