Готові списки джерел за темами / Metal working fluid

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Автор: Grafiati
Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Metal working fluid"

1

Hamed, Ezzat, Nagy Saker, Shawky ElShazly, Tarek Fahmy, and Yasser Aboulazm. "Synthesis of antibacterial additive for metal working fluids application." MATEC Web of Conferences 162 (2018): 05011. http://dx.doi.org/10.1051/matecconf/201816205011.

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Metalworking fluids, the class of lubricants most susceptible to microbial attack, metalworking fluid must also be safe for human use and exposure, The failure of the fluid to perform any of its functions has the potential to result in operational problems, process shutdowns, decreased tool life, and product-quality issues, all of which will result in increased costs. Perhaps one of the most common and controllable complications is microbial degradation specially standing from the fact that metalworking fluids contain the nutrients that can permit unchecked microbial growth. In this work we prepared Antimicrobial metal working fluid additive which fulfills the criteria of successful local production in Egypt, as the commercial availability of starting components, effectiveness of the prepared additive, easiness of addition and homogenization with other MWF additives, good environmental profile and biodegradability. The effectiveness of the prepared additive was evaluated by standard method ASTM E645-97 test. It was revealed that; the formic acid which condensate with the polyethylene glycol 400 and ethylene glycol had excellent antibacterial action, it could also greatly reduce growth of bacteria.
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2

Denkena, Berend, Alexander Krödel, and Lars Ellersiek. "Influence of metal working fluid on chip formation and mechanical loads in orthogonal cutting." International Journal of Advanced Manufacturing Technology 118, no. 9-10 (October 8, 2021): 3005–13. http://dx.doi.org/10.1007/s00170-021-08164-2.

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AbstractMetal working fluids are used in machining processes of many hard-to-cut materials to increase tool life and productivity. Thereby, the metal working fluids act on the thermal and on the mechanical loads of the tool. The changing mechanical loads can mostly be attributed to the changing friction between rake face and chip and changes in the chip formation, e.g., the contact length between rake face and chip. However, analyzing those effects is challenging, since a detailed look at the chip formation process is prevented by the metal working fluid. In this paper, a novel planing test rig is presented, which enables high-speed recordings of the machining process and process force measurements while using metal working fluids. Experiments reveal that process forces are reduced with increasing pressure of the metal working fluid. However, the average friction coefficient only changes slightly, which indicates that the reduced process forces are mainly the result of reduced contact lengths between rake face and chip.
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3

Glasse, Benjamin, Alexander Zerwas, Roberto Guardani, and Udo Fritsching. "Refractive indices of metal working fluid emulsion components." Measurement Science and Technology 25, no. 3 (February 5, 2014): 035205. http://dx.doi.org/10.1088/0957-0233/25/3/035205.

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4

Koller, Michael F., Claudia Pletscher, Stefan M. Scholz, and Philippe Schneuwly. "Metal working fluid exposure and diseases in Switzerland." International Journal of Occupational and Environmental Health 22, no. 3 (July 2, 2016): 193–200. http://dx.doi.org/10.1080/10773525.2016.1200210.

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5

Kurdve, Martin, and Lorenzo Daghini. "Sustainable metal working fluid systems: best and common practices for metal working fluid maintenance and system design in Swedish industry." International Journal of Sustainable Manufacturing 2, no. 4 (2012): 276. http://dx.doi.org/10.1504/ijsm.2012.048582.

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6

Dahlman-Höglund, Anna, Åsa Lindgren, and Inger Mattsby-Baltzer. "Endotoxin in Size-Separated Metal Working Fluid Aerosol Particles." Annals of Occupational Hygiene 60, no. 7 (June 6, 2016): 836–44. http://dx.doi.org/10.1093/annhyg/mew036.

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7

Kuscheva, M. E., D. N. Klauch, and O. A. Kobelev. "Principles of selection of cutting technological mediums for metal cutting." Izvestiya MGTU MAMI 8, no. 1-2 (March 10, 2014): 73–76. http://dx.doi.org/10.17816/2074-0530-67737.

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The article considers the principles of selection of cutting technological mediums for metal cutting. Rational use of effective cutting fluid is an important factor in improving of productivity and quality of metal working. Effect of cutting fluid depends on the rational choice of the specific conditions of the cutting, the predominant type of tool wear and tool and base material. In PJSC RPA “CNIITMASH” a complex of works on testing of a wide range of cutting fluids was carried out and recommendations for their use were developed
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Kampfer, P., B. Huber, N. Lodders, I. Warfolomeow, H. J. Busse, and H. C. Scholz. "Pseudochrobactrum lubricantis sp. nov., isolated from a metal-working fluid." INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 59, no. 10 (July 21, 2009): 2464–67. http://dx.doi.org/10.1099/ijs.0.008540-0.

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9

LOCKEY, J. "148 Metal working fluid associated hypersensitivity pneumonitis: A case series." Journal of Allergy and Clinical Immunology 105, no. 1 (January 2000): S49. http://dx.doi.org/10.1016/s0091-6749(00)90579-7.

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van der Gast, Christopher J., Andrew S. Whiteley, Andrew K. Lilley, Christopher J. Knowles, and Ian P. Thompson. "Bacterial community structure and function in a metal-working fluid." Environmental Microbiology 5, no. 6 (June 2003): 453–61. http://dx.doi.org/10.1046/j.1462-2920.2003.00428.x.

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Дисертації з теми "Metal working fluid"

1

Palkar, Ashish Yudhishthir Harris Daniel K. "An experimental investigation of liquid metal MHPs." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2007%20Fall%20Theses/Palkar_Ashish_26.pdf.

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2

Medaska, Michael Kenneth. "The measurement of temperatures and forces in a turning operation with cutting fluid." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15983.

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Glasse, Benjamin [Verfasser]. "Monitoring of Metal Working Fluid Emulsion Quality by in-process Light Spectroscopy / Benjamin Glasse." Berlin : epubli GmbH, 2015. http://d-nb.info/1074331206/34.

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Livelli, Mark Andrew. "Providing flow parameters for approximate die design models and the improvement and verification of those models using CFD analysis /." Online version of thesis, 2010. http://hdl.handle.net/1850/12222.

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Chen, Zhong. "Cutting fluid aerosol generation and dissipation in machining process : analysis for environmental consciousness." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17929.

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Gast, Christopher van der. "Microbial dynamics of metal-working fluids." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365323.

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Prince, Edmund Lee. "Fungal biodeterioration of synthetic metal working fluids." Thesis, University of Central Lancashire, 1988. http://clok.uclan.ac.uk/20019/.

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A survey was undertaken to determine the relative incidence of fungal biodeteriogens in contaminated in—service samples of synthetic and oil emulsion metal working fluids, and a list of isolates is submitted. A technique for assessing the concentration of surface—active components of both synthetic and oil emulsion metal working fluids is described. Results obtained using this technique provided evidence of surfactant depletion in oil emulsion fluids as a result of growth of a mixed fungal inoculum, but this effect was not recorded when these isolates were grown in synthetic fluids. Synthetic metal working fluds of known composition were formulated and the ability of selected fungal isolates to utilise both these fluids and the individual components thereof as sole sources of carbon and nitrogen was assessed. The metal working fluid components triethanolamine and diethanolamine borate were found to be readily available nutrient sources for growth of the isolates, the extent of growth being limited by the availability of carbon rather than nitrogen. Varying the initial pH of the medium was found to have no significant effect upon the extent of growth recorded at initial pH values of 7.0, 8.0 and 9.0. The use of respirometric techniques provided evidence to suggest that some of the enzymes involved in the fungal degradation of synthetic metal working fluid components might be inducible. The effect of fungal growth upon the composition of the complete synthetic metal working fluids was determined using the techniques of nuclear magnetic resonance spectroscopy and gas—liquid chromatography linked mass spectrometry. Results obtained using these techniques also provided evidence of the depletion of the triethanolamine and diethanolamine borate components of the complete fluids as a result of fungal growth.
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Burton, Clare. "Respiratory disease in workers exposed to metal working fluids." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8269/.

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The largest UK outbreak of respiratory disease in metalworking fluid (MWF) exposed workers (Powertrain) led to a heightened awareness of the health hazards associated with MWF. A literature review identified 29 outbreaks of ill health associated with MWF exposure with a peak incidence between 1996 and 2000. Microbial contamination was suspected but no unifying causative agent could be found. Six different case definitions for extrinsic allergic alveolitis (EAA) were indentified, only one of which was validated. The process of developing an evidence based case definition for MWF-EAA required the identification of a group of patients with unequivocal MWF associated EAA. The Powertrain database (created at the time of the outbreak and subsequent follow up appointments) was utilised and an Expert Panel of five occupational lung disease consultants concluded that there was sufficient clinical evidence to diagnose 14 workers as definite cases of EAA. By calculating the positive predictive value of the data points relevant to a diagnosis of EAA combined with knowledge and experience of previous EAA diagnostic criteria, it was possible to develop a new evidence-based EAA diagnostic score (the MWF EAA Score). The MWF EAA Score was applied to the Powertrain data demonstrating agreement with the Expert Panel opinion in over 80% of the cases with a greater number of workers correctly classified than with other published diagnostic criteria1. The score was also applied to previously published case series of workers diagnosed with MWF EAA, in order to externally validate the new EAA rating system. The MWF EAA Score appeared to perform well and there was sufficient data provided in almost half of these published cases indicating that the MWF EAA Score would have shown agreement. This scoring system is a simple and reproducible tool and provides an evidence-based case definition suitable for use in future UK outbreaks.
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GRESSEL, MICHAEL GERARD. "COMPARISON OF MIST GENERATION OF FLOOD AND MIST APPLICATION OF METAL WORKING FLUIDS DURING METAL CUTTING." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990120958.

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Buers, Katy Louise Mary. "A treatment process for the degradation of metal-working fluids using mixed microbial cultures." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242930.

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Книги з теми "Metal working fluid"

1

Engineers, Society of Manufacturing, ed. Cutting fluids & lubricants: Cutting fluids, lubricants, cutting fluid systems, metalforming compounds, treatment, and application equipment. Dearborn, Mich: Society of Manufacturing Engineers, Publications Development Department, 1985.

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2

1948-, Byers Jerry P., ed. Metalworking fluids. New York: M. Dekker, 1994.

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3

Britain), Institute of Petroleum (Great. Code of practice for metalworking fluids. Chichester: Published on behalf of the Institute of Petroleum, London, by J. Wiley, 1989.

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4

Metalworking Fluids Clinic (1991 Dearborn, Mich.). Metalworking Fluids Clinic: March 12-14, 1991, Dearborn, Michigan. Dearborn, Mich. (1 SME Dr., Dearborn 48121): Society of Manufacturing Engineers, 1991.

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5

1948-, Byers Jerry P., ed. Metalworking fluids. 2nd ed. Boca Raton: Taylor & Francis, 2006.

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6

Whittaker, Steve. Metalworking fluids: A fact sheet for workers. Olympia, Wash. (P.O. Box 44330, Olympia 98504-4330): Safety and Health Assessment and Research for Prevention, Washington State Dept. of Labor & Industries, 1997.

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7

A, Merrigan Michael, Sena J. Tom, Langley Research Center, and United States. National Aeronautics and Space Administration., eds. Start up of a Nb-1%Zr potassium heat pipe from the frozen state. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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A, Merrigan Michael, Sena J. Tom, Langley Research Center, and United States. National Aeronautics and Space Administration., eds. Start up of a Nb-1%Zr potassium heat pipe from the frozen state. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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9

A, Merrigan Michael, Sena J. Tom, Langley Research Center, and United States. National Aeronautics and Space Administration., eds. Start up of a Nb-1%Zr potassium heat pipe from the frozen state. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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10

A, Merrigan Michael, Sena J. Tom, and Langley Research Center, eds. Start up of a Nb-1%Zr potassium heat pipe from the frozen state. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1998.

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Частини книг з теми "Metal working fluid"

1

Breuer, D. "Metal-working fluid aerosols and vapours." In Analyses of Hazardous Substances in Air, 115–25. Weinheim, FRG: Wiley-VCH Verlag GmbH, 2003. http://dx.doi.org/10.1002/3527600191.ch10.

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2

Prince, E. L., and L. H. G. Morton. "Biofilm Development and Emulsifier Levels in Metal Working Fluid Systems." In Biodeterioration 7, 26–30. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1363-9_3.

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3

Theaker, D., and I. Thompson. "The Industrial Consequences of Microbial Deterioration of Metal-Working Fluid." In Handbook of Hydrocarbon and Lipid Microbiology, 2641–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-77587-4_196.

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4

Zmich, Robert, and Carsten Heinzel. "3D-Printed MWF Nozzles for Improved Energy Efficiency and Performance During Grinding." In Lecture Notes in Mechanical Engineering, 3–11. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-28839-5_1.

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AbstractParticularly during grinding of metal workpieces, a high energy consumption is required during the main process times, so that the resulting energy costs represent a significant amount of the total operating costs of the machine tool. In this context, the supply of metal working fluids (MWF) during the grinding process is often associated with a high energy consumption, but the MWF supply strategy (MWF flow rate, MWF nozzle, control and dimensioning of the MWF supply pumps) can significantly influence the energy efficiency of such processes. In the scope of this work, additive manufacturing was used to produce fluid supply nozzles adapted to the respective grinding process. In this work, it was shown that by using a flow-optimized nozzle the required power of the MWF supply pump can be significantly reduced, allowing to make the grinding process more efficient in terms of the energy required.
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5

Thompson, I. P., and C. J. van der Gast. "Pathogens in Metal Working Fluids." In Handbook of Hydrocarbon and Lipid Microbiology, 3305–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-77587-4_251.

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6

Nune, Madan Mohan Reddy, and Phaneendra Kiran Chaganti. "Investigating the Effect of Metal Working Fluid in Orthogonal Cutting of AISI 420 Stainless Steel Using 3-Dimensional Finite Element Model." In Lecture Notes in Mechanical Engineering, 593–602. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9931-3_57.

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Thompson, I. P., and C. J. van der Gast. "The Microbiology of Metal Working Fluids." In Handbook of Hydrocarbon and Lipid Microbiology, 2369–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-77587-4_173.

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Škulavik, T., and K. Gerulová. "Isolated RS485 communication interface for the metal working fluids monitoring system." In Advances in Materials Science, Energy Technology and Environmental Engineering, 41–46. P.O. Box 11320, 2301 EH Leiden, The Netherlands, e-mail: Pub.NL@taylorandfrancis.com , www.crcpress.com – www.taylorandfrancis.com: CRC Press/Balkema, 2016. http://dx.doi.org/10.1201/9781315227047-9.

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Ladam, Yves, Monica Børgund, and Erling Naess. "Influence of Heat Source Cooling Limitation on ORC System Layout and Working Fluid Selection: The Case OG Aluminium Industry." In Light Metals 2014, 723–27. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118888438.ch121.

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Ladam, Yves, Monica Børgund, and Erling Næss. "Influence of Heat Source Cooling Limitation on ORC System Layout and Working Fluid Selection: the Case Og Aluminium Industry." In Light Metals 2014, 723–27. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48144-9_121.

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Тези доповідей конференцій з теми "Metal working fluid"

1

Heitbrink, W., G. Dye, and A. Spencer. "425. An Evaluation of Metal Working Fluid Mist Generation at a Machining Center." In AIHce 1996 - Health Care Industries Papers. AIHA, 1999. http://dx.doi.org/10.3320/1.2765108.

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2

Lynch, C., and K. Bartlett. "27. Metal Working Fluid Assessment at the Coast Mountain Bus Company Fleet Overhaul Center." In AIHce 2005. AIHA, 2005. http://dx.doi.org/10.3320/1.2758743.

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3

Bartlett, K., J. Phipps, K. Kulhankova, and P. Thorne. "6. Evaluation of Five Extraction Protocols for Determination of Endotoxin in Metal Working Fluid Aerosol." In AIHce 2001. AIHA, 2001. http://dx.doi.org/10.3320/1.2765980.

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4

WOJCIK, CRAIG, and LARRY CLARK. "Design, analysis, and testing of refractory metal heat pipes using lithium as the working fluid." In 26th Thermophysics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1400.

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Joksch, Stefan, and Rene´ Schwerin. "Safe and Economically Efficient Use of Metal Working Fluids in Mechanical Processing of Magnesium Alloys." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44286.

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Magnesium, a light-weight metal, has been used as a construction material since the early days of the 20th century. Excellent availability and low specific weight are the main benefits for applications in the aerospace and automotive fields. Because of a vast increase of Magnesium machining applications in the mobile equipment manufacturing industry over the last 10 years, there is an increasing demand for specially adapted cutting fluid systems for the machining of Magnesium parts. This paper will provide an overview on the latest research activities in Germany to develop new cutting fluid systems for a safe and economically efficient use of metal working fluids in mechanical processing of Magnesium alloys. Laboratory results and field applications with new innovative water-miscible cutting fluids are demonstrating that it is possible to control the huge problems of the past, such as hydrogen formation, emulsion split and corrosion. Based on experiences in the biggest european magnesium Machining project, the “Al/Mg Hybrid Crank Case” (Fig. 1), problems and solutions specific for large scale machining of Magnesium alloys with water-mixed cutting fluids are shown.
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6

Sammak, Majed, Marcus Thern, and Magnus Genrup. "Influence of Working Fluid on Gas Turbine Cooling Modeling." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95457.

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Cooling is essential in all modern high-temperature gas turbines. Turbine cooling is mainly a function of gas entry temperature, which plays the key role in overall gas turbine performance. High turbine entry temperatures can be achieved through appropriate selection of blade cooling method and blade material. The semi-closed oxy-fuel combustion combined cycle (SCOC-CC) operates at the same high entry gas temperature, hence blade cooling is necessary. The aim of this paper was to calculate the required turbine cooling in oxy-fuel gas turbines and compare it to the required turbine cooling in conventional gas turbines. The approach of the paper was to evaluate the thermodynamic and aerodynamic factors affecting turbine cooling with using the m*-model. The results presented in the paper concerned a single turbine stage at a reference diameter. The study showed greater cooling effectiveness in conventional gas turbines, but a greater total cooled area in oxy-fuel gas turbines. Consequently, the calculated total required cooling mass flow was close in the both single stage turbines. The cooling requirement and cooled area for a conventional and oxy-fuel twin-shaft gas turbine was also examined. The gas turbine was designed with five turbine stages. The analysis involved various turbine power and combustion outlet temperatures (COT). The results showed that the total required cooling mass flow was proportional to turbine power because of increasing gas turbine inlet mass flow. The required cooling mass flow was proportional to COT as the blade metal temperature is maintained at acceptable limit. The analysis revealed that required cooling for oxy-fuel gas turbines was higher than for conventional gas turbines at a specific power or specific COT. This is due to the greater cooled area in oxy-fuel gas turbines. The cooling effectiveness of conventional gas turbines was greater, which indicated higher required cooling. However, the difference in cooling effectiveness between conventional and oxy-fuel gas turbines was less in rear stages. The cooling mass flow as percentage of gas turbine inlet mass was slightly higher in conventional gas turbines than in oxy-fuel gas turbines. The required cooling per square meter of cooled area was used as a parameter to compare the required cooling for oxy-fuel and conventional gas turbines. The study showed that the required cooling per cooled area was close in both studied turbines.
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Çakaloglu Ilgaz, Aslihan, Vicky Moore, Wendy Robertson, Alastair Robertson, and Sherwood Burge. "The utility of airfed RPE in the management of workers with metal-working fluid occupational asthma." In ERS International Congress 2016 abstracts. European Respiratory Society, 2016. http://dx.doi.org/10.1183/13993003.congress-2016.pa1164.

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Roussel, Sandrine, Bénédicte Rognon, Coralie Barrera, Gabriel Reboux, Karine Salamin, Frédéric Grenouilllet, Isabelle Thaon, et al. "Use Of Recombinant Antigens From Mycobacterium Immunogenum For Serodiagnosis Of Metal Working Fluid-associated Hypersensitivity Pneumonitis." In American Thoracic Society 2010 International Conference, May 14-19, 2010 • New Orleans. American Thoracic Society, 2010. http://dx.doi.org/10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a4654.

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Reilly, Sean W., and Ivan Catton. "Utilization of Advanced Working Fluids in Heat Pipes." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44360.

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Анотація:
A novel fluid for use as a working fluid in a heat pipe has been tested at UCLA. The fluid was discovered originally in use with a device consisting of a metal tube charged with the patented inorganic aqueous solution (IAS) which is evaporated when the tube is evacuated before use. According to the patent, this evaporation leaves a thin film which allows the tube to carry high heat flux loads with low temperature drop across the tube in a solid state mode. However, various experiments with these tubes have produced inconsistent results and there is some question as to whether the fluid is completely evaporated. The research on which this work is based, is focused on testing whether the charging fluid will operate as the working fluid in a heat pipe, in order to determine the nature of the IAS fluid. We charged a heat pipe apparatus with a biporous wick in order to investigate if the fluid plays a role in heat transfer. We have extensive data for this experiment using water as the working fluid which will use to compare the two sets of results. Testing has shown positive results in the reduction of the superheat required to drive heat fluxes through a wick compared to water. Some experiments have shown that the operating (temperature) range of the IAS is much larger than a standard heat pipe. It is theorized that the increase in performance of the IAS is due to an increased heat of vaporization. If this fluid is proven to be effective, it would lead to more effective and tunable heat transfer devices.
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10

Ernst, Meike H., and Monika Ivantysynova. "Micro Surface Shaping for the High-Pressure Operation of Piston Machines With Water as a Working Fluid." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9534.

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Анотація:
Oil is the main working fluid used in the hydraulics industry today — but water is nonflammable, environmentally friendly and cheap: it is the better choice of working fluid for hydraulic systems. However, there is one caveat. Water’s extremely low viscosity undermines its ability to carry load. In forest machinery, construction machinery, and aircraft systems, today’s hydraulic circuits have high operating pressures, with typical values between 300 and 420 bar. These high pressures create the need for high load-carrying abilities in the fluid films of the tribological interfaces of pumps and motors. The most challenging of these interfaces is the piston-cylinder interface of swashplate type piston machines, because the fluid must balance the entire piston side load created in this design. The low viscosity of the water turns preventing metal-to-metal contact into quite a challenge. Fortunately, an understanding of how pressure builds and shifts about in these piston-cylinder lubrication interfaces, coupled with some clever micro surface shaping, can allow engineers to drastically increase the load-carrying ability of water. As part of this research, numerous different micro surface shaping design ideas have been simulated using a highly advanced non-isothermal multi-physics model developed at the Maha Fluid Power Research Center. The model calculates leakage, power losses, film thickness and pressure buildup in the piston-cylinder interface over the course of one shaft revolution. The results allow for the comparison of different surface shapes, such as axial sine waves along the piston, or a barrel-shaped piston profile. This paper elucidates the effect of those surface profiles on pressure buildup, leakage, and torque loss in the piston-cylinder interface of an axial piston pump running at high pressure with water as the lubricant.
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