Abstract
This paper establishes the vibrating-mesh ultrasonic mist-generation of highly viscous biodegradable oils as a novel implementation for MQL (minimum quantity lubrication) applications. Initial studies on ultrasonic MQL have already been carried out, but the usage of highly viscous biodegradable oils in a non-diluted setup has never been explored. This research studied the atomization rate and mist droplet size distribution, influenced by oil viscosity, and actuator-related properties, such as mesh pore size and driving voltage. Through the FLDC (fibre liquid delivery column) method, using a 113 kHz vibrating mesh piezo actuator, solution feasibility was shown for three currently in-industry-used highly viscous MQL oils, including a maximum liquid viscosity of 37 cSt, higher than the previous record of 28 cSt for ultrasonic atomization. An atomization rate of 13.4 ml/h and mean droplet diameter of 27.5 µm were followingly achieved for this new maximum viscosity. The demonstrated setups and their novel atomization performance data were gathered in the form of a design guide, aiding in the future development of ultrasonically atomized viscous oils for MQL applications.
| Original language | English |
|---|---|
| Pages (from-to) | 5503-5516 |
| Number of pages | 14 |
| Journal | Journal of Mechanical Science and Technology |
| Volume | 35 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2021 |
Keywords
- Biodegradable oils
- Minimum quantity lubrication
- Piezoelectric actuation
- Ultrasonic atomization
- Vibrating mesh atomization
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