Relevant bibliographies by topics / Cooling and Lubrication

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
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  6. Reports

Academic literature on the topic 'Cooling and Lubrication'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Cooling and Lubrication"

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Jia, Fuchun, Yulong Lei, Yao Fu, Binyu Wang, and Jianlong Hu. "Demand Analysis of Lubricating Oil in Spur Gear Pairs." Applied Sciences 10, no. 16 (2020): 5417. http://dx.doi.org/10.3390/app10165417.

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Theoretical calculation and numerical simulation are used to investigate the lubricating oil demand of spur gears. In accordance with the function of lubricating oil during the meshing process, oil demand is regarded as the superposition of oil for lubrication and cooling. Oil for lubrication is calculated in accordance with meshing and elastohydrodynamic lubrication (EHL) theories. Oil for cooling is obtained from friction heat. The influence of different meshing positions on lubricating oil demand is analysed, and the effects of modulus, tooth number, transmission ratio, input speed and input torque on lubricating oil demand is investigated using a control variate method. Simulation results indicated that oil for lubrication and oil for cooling have two maxima each during a meshing circle. The influences of different gear parameters and working conditions on lubricating oil demand are compared. The results showed that the oil volume for lubrication increases and oil volume for cooling decreases as the modulus, tooth number and transmission ratio of the gear increase, the oil volume for lubrication and oil volume for cooling increases as the input speed and input torque increase.
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Kong, Fan Xia, and De Yuan Zhang. "Cutting Temperature in Internal Minimum Quantity Lubrication Drilling of Superalloys." Advanced Materials Research 225-226 (April 2011): 203–6. http://dx.doi.org/10.4028/www.scientific.net/amr.225-226.203.

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Super alloys is the ideal material for high temperature components although it has a great difficulty to cut, especially drilling. Minimum Quantity Lubrication (MQL) has a good advantage of green, lubricating and cooling effect. Comparison experiments of MQL cooling drilling and pouring cooling drilling were done with coolant holes in drill. The results show that: the maximum measure temperature is less than 100°C and the amount of wear is very small. Internal Minimum Quantity Lubrication drilling is an effective process to solve problems of high temperature and wear fast for super alloys drilling.
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Duc, Tran Minh, Tran The Long, and Dang Van Thanh. "Evaluation of minimum quantity lubrication and minimum quantity cooling lubrication performance in hard drilling of Hardox 500 steel using Al2O3 nanofluid." Advances in Mechanical Engineering 12, no. 2 (2020): 168781401988840. http://dx.doi.org/10.1177/1687814019888404.

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The work in this study presents an experimental evaluation on minimum quantity cooling lubrication based on the Ranque–Hilsch vortex tube and minimum quantity lubrication performance in hard drilling of Hardox 500 steel (49–50 HRC) using coated carbide drills. Al2O3 nanoparticles are suspended in the based fluids including water-based emulsion and rice bran oil to enhance the cooling and lubricating effects. The response variables, consisting of drilling thrust force, surface roughness, surface profile and microstructure, and tool wear, are studied, and the analysis of variance is used for evaluating the input machining parameters under minimum quantity lubrication and minimum quantity cooling lubrication conditions. The results of this article indicate that minimum quantity cooling lubrication using Al2O3 nanofluid provides the better machining performance and gives out better surface quality and lower thrust force compared to minimum quantity lubrication with/without nanofluid and minimum quantity cooling lubrication with pure fluid. Also, based on the optimization results, the validation experiments are conducted to study more on drilling thrust force, chip morphology, and tool wear.
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Sun, Pei Ming, Xie Ben Wei, and Shu Qin Chen. "The Research of Lubricating and Colling System of the Low-Speed and Heavy-Load Sliding Bearing." Advanced Materials Research 744 (August 2013): 95–99. http://dx.doi.org/10.4028/www.scientific.net/amr.744.95.

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This paper analyzes the influence of lubricating oil film of the low-speed and heavy-load sliding bearing on a variety of factors. It introduces the operation of Bearing for lubricating oil film in monitoring method, common fault causes and treatment measures. Finally, the bearing cooling system structure is discussed, providing reference for practical engineering application. There are many reasons to cause the failure of the bearing lubrication such as bearing assembly defects, the error of size and cooling system problems. By detecting and contrast parameters, this study analyze the determine data and correct the fault. Through the use of reasonable structure of the oil tank and cooling water channel, we can improve the lubrication performance, and extend the bearing life. This paper analyzes the factors restricting the low speed and high load sliding bearing lubricant film, and solves the actual bearing lubrication problem.
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Hawryluk, Marek, and Jacek Ziemba. "Lubrication in hot die forging processes." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 233, no. 5 (2018): 663–75. http://dx.doi.org/10.1177/1350650118784728.

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This article presents selected aspects of lubricant application, as well as lubrication methods and devices in the context of forging tool durability and accessories used in die forging processes at elevated temperatures. The properties and applications of the currently used lubricating and cooling agents in selected industrial forging processes were analyzed. The authors’ original studies on the influence of lubricant application, dose size, time and feed direction as well as other factors affecting tribological conditions are also presented. A review of lubricating and cooling systems and devices is provided, as well as a lubricating device built on the basis of the authors’ knowledge and experience is presented. The developed system, implemented into an industrial process, makes it possible to select and maintain its optimal tribological conditions through the control of the size and frequency of the administered lubricant dose. It may be an alternative to the manual lubricant application method, where human error is a factor, or to fully automated, but expensive, lubrication systems.
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Allu, Venkat Pradeep, D. Linga Raju, and S. Ramakrishna. "Performance analysis of cryogenically treated plus tempered carbide inserts in turning of Inconel 718 using cryogenic minimum quantity lubrication cooling technique." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 233, no. 12 (2019): 1810–19. http://dx.doi.org/10.1177/1350650119845744.

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The present study deals with performance investigation of cryogenically treated plus tempered carbide inserts during machining of Inconel 718. A novel cooling approach of combined minimum quantity lubrication with cryogenic coolant, cryogenic minimum quantity lubrication is examined to improve the machinability of Inconel 718 and compared with dry, wet, minimum quantity lubrication, and cryogenic cooling conditions. Tool wear, cutting forces, and chip morphology were analyzed to evaluate the effect of cooling under different conditions. The results revealed that minimum quantity lubrication and cryogenic conditions exhibited superior performance than wet and dry conditions. However, severe tool fracture and cutting forces were observed in cryogenic machining which is an outcome of hardened surface of nickel alloy due to cryogenic fluid. Cryogenic minimum quantity lubrication was understood to be the best machining condition generating least cutting force and tool wear. Furthermore, examining chip morphology under scanning electron microscopy revealed that cryogenic minimum quantity lubrication performed stable machining.
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Wang, Jin Li, Lin Cai, and Hong Tao Zheng. "Experiment Study of Oil-Air Lubrication on Cooling of Turning Tools." Advanced Materials Research 189-193 (February 2011): 3187–90. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.3187.

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When lubricants are used according to special requirements, it is possible to achieve considerable cost savings. Compared to conventional coolant cooling technology used in metal cutting, oil-air lubrication increases cooling performance, avoids environmental pollution, reduces running and maintenance costs. The cutting temperature contrast experimental research was based on close to practice 45# steel in dry cutting, wet cutting and oil-air lubrication conditions. The research work concentrated on the superiority of oil-air lubrication cooling and the influence of cutting amount on temperature. The experimental results show that oil-air lubrication is more effective in reducing the cutting temperature than wet cutting or dry cutting, this paper details the cutting temperature curves at several different tests provides a basis for industrial production, improves the level of machining process and the significance was being reported.
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Bao, Heyun, Xiaonan Hou, Xin Tang, and Fengxia Lu. "Analysis of temperature field and convection heat transfer of oil-air two-phase flow for ball bearing with under-race lubrication." Industrial Lubrication and Tribology 73, no. 5 (2021): 817–21. http://dx.doi.org/10.1108/ilt-03-2021-0067.

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Purpose Under-race lubrication can increase the amount of lubricating oil entering a bearing and greatly improve lubrication and cooling effects. The oil-air two-phase flow and heat transfer characteristics inside a ball bearing with under-race lubrication play a key role in lubrication and cooling performance. The purpose of this paper is to study these two characteristics, and then provide guidance for lubrication and heat dissipation of bearing with under-race lubrication. Design/methodology/approach In this paper, a simplified three-dimension heat transfer model of ball bearing with under-race lubrication is established; the coupled level set volume of fluid method is used to track the oil-air two-phase flow, and the Palmgren method is used to calculate the heat generation. The influence of rotation speed and inlet velocity on oil volume fraction, temperature and convection heat transfer is investigated. A temperature test for under-race lubrication is carried out. Findings Because of the centrifugal force, lubricating oil is located more on the outer ring raceway. As the rotation speed decreases and the inlet velocity increases, the oil volume fraction increases and the temperature decreases. Furthermore, the area with high oil volume fraction has a large convection heat transfer coefficient and low temperature. The error between the simulation temperature and the test temperature is within 10%. Originality/value The research on the temperature field and convection heat transfer characteristics of under-race lubrication ball bearings at different rotation speeds and inlet velocities is rarely involved.
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Sun, Hao, and Yi Hua Feng. "The Research of Minimum Quantity Lubrication Mechanism in Grinding with Mechanical Mechanics." Applied Mechanics and Materials 252 (December 2012): 129–33. http://dx.doi.org/10.4028/www.scientific.net/amm.252.129.

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Effective cooling and lubricating is got by use a small amount of cutting fluid in MQL grinding. Compare grinding performance under various cooling lubrication, reasonable grinding temperature, lower grinding force, improved surface quality and extended wheel life is got in MQL grinding. The grinding performance of MQL grinding is also influenced by many factors, such as the nozzle shape, position, distance, and MQL flow rate.
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Zhang, Feng, Gong Bo Han, and Su Xia Duan. "Paper Machine Bearing’s Temperature and Air-Velocity Optimization under Air-Oil Lubrication." Advanced Materials Research 550-553 (July 2012): 3054–58. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.3054.

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The purpose of this resarch was investigated the air-oil temperature field distribution under air-oil lubrication and oil lublubrication, meanwhile also study the air-oil lubrication effect under different air velocity inlet the bearing cavities of the high-speed paper machine dryer section. Base on the CFD theory, the temperature field of CARB bearing outer ring and the velocity field of the bearing cavities were simulated by the FLUENT software.Result show that air-oil lubricatin can reach the same cooling effect is contras with oil lubrication in the same heat production by roller; the best air-velocity value of air-oil lubrication system is obtain for the change of temperature and pressure in bearing cavities. It is confirm that the air-oil lubrication is viable in the high-speed paper machine dryer section.
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Dissertations / Theses on the topic "Cooling and Lubrication"

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Gibbs, M. G. "Lubrication and cooling in creep feed grinding." Thesis, University of Bristol, 1988. http://hdl.handle.net/1983/11ced9d9-3a4b-4ccd-8b57-3ea3d092d81d.

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Pervaiz, Salman. "Investigation Cooling and Lubrication Strategies for Sustainable Machining of Titanium Alloys." Licentiate thesis, KTH, Maskin- och processteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170769.

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The manufacturing sector is one of the most rapidly growing sectors in the industrialized world today. Manufacturing industry is concerned with being more competitive and profitable. Profit margins are directly related to the productivity of the company, and productivity improvements can be achieved by making manufacturing processes more efficient and sustainable. Knowledge of cutting conditions and their impact on machined surface and tool life enable productivity improvement.  These days the main emphasis is not only to increase productivity, but also to make processes cleaner and more environmental friendly.  This research aims to study machinability of difficult to cut, titanium alloys, in close reference to the application of different cooling/ lubrication strategies and their environmental impact. Total energy consumed (kWh) and carbon dioxide (CO2) emissions produced in machining are common environmental indicators. In this research project environmental implications of the cutting process were calculated in terms of carbon dioxide (CO2) emissions and energy consumption analysis. The experimental work consisted of controlled machining tests with cutting force, surface roughness, power, and flank wear measurements under dry, mist, combination of vegetable oil mist and cooled air (MQL+CA) and flood cutting environments. The current study provides better understanding of the cutting performance of TiAlN coated and uncoated carbide tools. The study also investigated tool failure modes, tool wear mechanisms, surface roughness and energy consumption to improve machinability of Titanium alloys.  The study revealed the promising behaviour of minimum quantity lubrication (MQL) under specific ranges of cutting speed for both coated and uncoated tools.  Variation in the cutting force showed close link with built up edge (BUE) formation. MQL based systems have huge potential to improve machinability of Titanium alloys and should be investigated further.<br><p>QC 20140407</p>
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Iskandar, Youssef. "Optimization of minimum quantity cooling / lubrication machining of composites through flow visualization." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119384.

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Modern machining involves more dependence on green manufacturing techniques. Minimum Quantity Cooling Lubrication (MQCL) of machining processes has replaced conventional flood cooling in many applications, involving various materials and cutting conditions. The use of this technique results in considerable reductions in the quantity of lubricant used, reducing manufacturing costs as well as the impact of the process on the environment. With the objective of achieving a fuller understanding of this technology, an interest has been taken in the properties of the aerosol, and their impact on machining performance. This study presents an attempt to understand these properties through the use of experimental and numerical flow visualization techniques, followed by machining experiments. The Particle Image Velocimetry study revealed how the MQCL nozzle geometry and the injection parameters (air and lubricant flow rates) which control the Sauter Mean Diameter (SMD) of the resulting droplets, affect the flow, and that droplets with smaller SMD are more capable of following the air flow. Computational Fluid Dynamics simulations showed that a single-phase (air only) simulation is sufficient in describing the flow, when comparing the simulation and experimental (real flow) PIV results. They also revealed that the potential thermal benefits of the air flow can be achieved if the nozzle orientation vis-à-vis a model tool is exploited. Comparisons of MQCL with conventional flood cooling and dry machining modes in milling of Carbon-Fibre Reinforced Plastics (CFRP) revealed that the benefit of MQCL (namely lower tool wear and higher geometric accuracy of the machined part), can be achieved if the atomization parameters are set for appropriate lubrication and SMD size.<br>L'usinage moderne implique plus de dépendance des techniques de manufacture verte. La micro-lubrification (Minimum Quantity Cooling Lubrication) des processus d'usinage a remplacé l'arrosage conventionnel dans le cas de plusieurs applications, impliquant des matériaux et des conditions d'usinage variés. L'usage de cette méthode mène à des réductions considérables de la quantité de lubrifiant utilisé, réduisant ainsi les coûts de fabrication ainsi que l'impact du processus sur l'environnement. Un intérêt a été porté aux propriétés de l'aérosol, et leurs effets sur la qualité de l'usinage, ayant pour objectif une meilleure compréhension de cette technologie. Cette étude est une tentative de mieux comprendre ces propriétés à travers l'usage des techniques de visualisation de débit expérimentaux et numériques, suivis par des essais d'usinage. L'étude Particle Image Velocimetry (PIV) a démontré comment la géométrie de la buse el les paramètres d'injection (débits d'air et de lubrifiant) qui contrôlent la taille du diamètre moyen de Sauter (SMD) des gouttelettes résultantes, affectent le débit, mais aussi que les bulles ayants les tailles SMD les plus petites sont les plus efficace lorsqu'il s'agit de suivre le débit de l'air. Des essais numériques (Computational Fluid Dynamics) ont démontré que des simulations monophasiques (air seulement) sont suffisantes pour bien décrire le débit, en comparant avec les résultats du PIV (débit réel). Ils ont aussi démontré que les avantages thermiques de l'air peuvent être obtenus si la position de la buse vis à vis de l'outil est exploitée. Des comparaisons entre l'MQCL et de arrosage conventionnel et usinage à sec lors d'essais de fraisage de plastique à renfort fibre de carbone (PRFC) ont montré que les avantages de l'MQCL, notamment un usage réduit et une plus grande efficacité géométrique de la pièce usinée, peuvent être obtenus si les paramètres d'atomisation sont choisis pour une lubrification suffisante et taille SMD appropriée.
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Pervaiz, Salman. "Numerical and Experimental Investigations of the Machinability of Ti6AI4V : Energy Efficiency and Sustainable Cooling/ Lubrication Strategies." Doctoral thesis, KTH, Industriell produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173594.

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Titanium alloys are widely utilized in the aerospace, biomedical,marine, petro-chemical and other demanding industries due to theirdurability, high fatigue resistance and ability to sustain elevateoperating temperature. As titanium alloys are difficult to machine, dueto which machining of these alloys ends up with higher environmentalburden. The industry is now embracing the sustainable philosophy inorder to reduce their carbon footprint. This means that the bestsustainable practices have to be used in machining of titanium alloys aswell as in an effort to reduce the carbon footprint and greenhouse gas(GHG) emissions.In this thesis, a better understanding towards the feasibility of shiftingfrom conventional (dry and flood) cooling techniques to the vegetableoil based minimum quantity cooling lubrication (MQCL) wasestablished. Machining performance of MQCL cooling strategies wasencouraging as in most cases the tool life was found close to floodstrategy or sometimes even better. The study revealed that theinfluence of the MQCL (Internal) application method on overallmachining performance was more evident at higher cutting speeds. Inaddition to the experimental machinability investigations, FiniteElement Modeling (FEM) and Computational Fluid Dynamic (CFD)Modeling was also employed to prediction of energy consumed inmachining and cutting temperature distribution on the cutting tool. Allnumerical results were found in close agreement to the experimentaldata. The contribution of the thesis should be of interest to those whowork in the areas of sustainable machining.<br><p>QC 20150915</p>
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Wolf, Jason. "INVESTIGATION OF CHIP-FORM AND TOOL-WEAR IN TURNING OF HARDENED AF9628 ALLOY UNDER VARIOUS COOLING AND LUBRICATION CONDITIONS." UKnowledge, 2019. https://uknowledge.uky.edu/ms_etds/10.

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Next generation defense and commercial applications for structural steels require new alloys that eliminate or reduce critical elements from their composition to lower cost and improve manufacturability, while maintaining or exceeding high strength and toughness requirements. A new alloy, denoted as AF9628, has recently been developed for this purpose and its manufacturing characteristics and the material response in component manufacturing must be fully understood. In the present study, hardened AF9628 alloy was turned with a coated carbide cutting tool under fixed cutting speed, feed rate, and depth of cut parameters. This work focuses on chip-form and tool-wear analysis to understand, for the first time with AF9628, these fundamental aspects of the turning process and their relationship to productivity and part quality. Current industry standard practice of flood-cooled machining for AF9628 was used during machining experiments. Dry, minimum quantity lubrication (MQL), and cryogenic machining were investigated as alternative cooling and lubrication conditions. High-speed imaging during AF9628 turning experiments provides a new insight into the chip formation process, while the use of optical microscopy and scanning white light interferometry allowed for further characterization of chip-form and tool-wear. Chip-form is favorable as short, arc-shaped chips with new tools under all of the tested cooling and lubrication conditions. As a result of rapid wear at the end of the tool-life in all of the experimental conditions, chip-form evolves to unfavorably long, snarled ribbon-like chips and the resultant cutting force increased by as much as 64% under flood-cooled conditions. Tool-wear types that were observed during experiments include a combination of nose wear, built-up edge, plastic deformation, and groove wear on the rake face. Due to the fixed cutting parameters and cutting tool selected for this study, which were designed for flood-cooled machining in a prior study, undesirable failure of the cutting tools under dry, MQL, and cryogenic machining occurred. Future work requires experimentation across a wider processing space, and with different cutting tools, to thoroughly evaluate alternative cooling and lubrication techniques for machining AF9628.
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Kardekar, Abhijit Dilip. "MODELING AND OPTIMIZATION OF MACHINING PERFORMANCE MEASURES IN FACE MILLING OF AUTOMOTIVE ALUMINUM ALLOY A380 UNDER DIFFERENT LUBRICATION/COOLING CONDITIONS FOR SUSTAINABLE MANUFACTURING." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_theses/373.

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The use of cutting fluids in machining process is very essential for achieving desired machining performance. Due to the strict environmental protection laws now in effect, there is a wide-scale evaluation of the use of cutting fluids in machining. Consequently, minimal quantity lubrication (MQL), which uses very small quantity of cutting fluids and still offers the same functionality as flood cooling, can be considered as an alternative solution. This thesis presents an experimental study of face milling of automotive aluminum alloy A380 under four different lubrication/cooling conditions: dry cutting, flood cooling, MQL (Oil), and MQL (Water). Experiments were design using Taguchi method for design of experiments. Empirical models for predicting surface roughness and cutting forces were developed for these four conditions in terms of cutting speed, feed and depth of cut. Optimization technique using Genetic Algorithms (GA) was used to optimize performance measures under different lubrication/cooling conditions, based on a comprehensive optimization criterion integrating the effects of all major machining performance measures. Case studies are also presented for two pass face milling operation comparing flood cooling condition with MQL. The comparison of the results predicted by the models developed in this work shows that the cutting force for MQL (Oil) is either lower or equal to flood cooling. The surface roughness for MQL (Oil) is comparable to flood cooling for higher range of feed and depth of cut. A comparison of the optimized results from the case studies, based on value of utility function, shows that the optimum point for two pass face milling operation having MQL (Oil) as finish pass has highest utility function value.
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Alves, Manoel Cleber de Sampaio [UNESP]. "Influência dos métodos de lubri-refrigeração na retificação do aço ABNT 4340 usando rebolo de CBN." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/100911.

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Made available in DSpace on 2014-06-11T19:31:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-19Bitstream added on 2014-06-13T18:41:35Z : No. of bitstreams: 1 alves_mcs_dr_bauru.pdf: 4541684 bytes, checksum: 03e1d27ea6b721a409bebc9862b0e67f (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>É analisada a influência das técnicas de mínima quantidade de lubrificante (MQL), refrigeração otimizada e refrigeração convencional, com diferentes vazões e velocidade de aplicação do fluido de corte, na qualidade das peças produzidas (acabamento, erros de forma, trincas, queima, perda da dureza) com aços endurecidos, no processo de retificação cilíndrica externa de mergulho com a utilização de rebolos superabrasivos com baixa concentração de CBN. Utilizou-se fluidos de corte de origem vegetal, que representam menos riscos à saúde e ao meio. A análise da qualidade das peças foi realizada através da avaliação das variáveis de saída do processo como o comportamento da força tangencial de corte, energia específica de retificação, rugosidade, desvio de circularidade, emissão acústica, tensão residual, análise de microscopias eletrônicas de varredura e microdureza. Com a análise das formas de aplicação e das várias vazões e velocidades do fluido de corte utilizadas encontraram-se condições de lubri-refrigeração que propiciam a diminuição do volume de fluido de corte, diminuição do tempo de usinagem sem prejudicar os parâmetros geométicos, dimensionais, o acabamento superficial e a integridade superficial dos componentes. Em relação as diferentes formas de aplicação do fluido de corte notou-se o melhor desempenho da aplicação otimizada para maiores velocidades mostrando a eficiência de um novo conceito de bocal utilizado. O processo otimizado e o processo MQL foram capazes de manter a dureza superficial e a integridade superficial das peças produzidas. Exceção somente para a condição MQL com vazão de fluido de corte de 40ml/h que produziu trincas e retêmpera superficial. O desvio de circularidade e a rugosidade proporcionada pelos métodos estão dentro de valores recomendados para a retificação sendo que a técnica otimizada...<br>The influences on surface integrity of the parts (finishing, geometrical errors, cracks, burn, microhardness) and grinding wheel (wear) have been analyzed in this research by employing the minimum quantity of lubrication (MQL), optimized and conventional cooling for hardened parts of steel and superabrasives grinding wheel in the cylindrical plunge grinding process. This study was carried out through the assessment of the process output variables such as the behavior of the tangential cutting force, specific energy, surface roughness, circularity errors, acoustic emission, residual stress, scanning electronic microscopy (SEM) and microhardness. The cutting fluid derived from vegetal oil has been utilized in order to comply with the environmental requirements and thus offering less risk to the health. It could be observed from the analysis on different ways of cutting fluid applications that there are cooling conditions which facilitate the decrease in cutting fluid volume, decrease in grinding time without impairing the geometrical and dimensional parameters, the surface finish and surface integrity of the parts. It could be noted the optimized application for higher velocities has presented the best performance regarding the different applications of cutting fluids. The optimized and MQL processes were able to maintain the hardness and surface integrity of the ground parts. Exception occurend only for MQL condition with flow rate of 40ml/h, which led to cracks and quench on the workpiece surface. Roundness errors and surface roughness are within recommended valus for grinding with the best results obtained for the optimized method (2'mü' for roundness error and 0.5'mü'm for surface roughness) compared with the MQL technique (6.8'mü'm for roundness error and 1.2'mü'm for surface roughness). The process of minimum quantity of lubrication, however, has showed possible... (Complete abstract click electronic access below)
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Simões, Rafael Plana [UNESP]. "Utilização de diferentes métodos de lubri-refrigeração na retificação cilíndrica externa de mergulho de cerâmica avançada com rebolo diamantado." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/99711.

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Made available in DSpace on 2014-06-11T19:30:19Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-03Bitstream added on 2014-06-13T19:39:45Z : No. of bitstreams: 1 simoes_rp_dr_bauru.pdf: 3105631 bytes, checksum: 49bc95b3c3c78388d520425875d9eabb (MD5)<br>Atualmente há por parte das empresas uma constante preocupação com a atualidade de seus sistemas produtivos, buscando a melhoria da eficiência dos processos respeitando as leis de preservação ambiental. Dentro desse contexto e considerando que o segmento das cerâmicas corresponde a aproximadamente 1% do PIB brasileiro, com perspectiva de crescimento, inúmeros estudos têm sido feitos nesse campo de pesquisa. Contudo, ainda se tem um alto custo agregado ao acabamento da peça, o qual é feito, na maioria dos casos, pelo processo de retificação. Além do alto custo do processamento, o uso de fluidos de corte tem se tornado um problema para a indústria devido à dificuldade de descarte imposta pela rígida Legislação Ambiental. Face ao exposto, o presente trabalho propõe o estudo de métodos alternativos de lubri-refrigeração para o processo de retificação externa de mergulho de cerâmica avançado com rebolo diamantado. Tais métodos visam diminuir os gastos com fluido de corte, sendo eles: a técnica de lubri-refrigeração otimizada e a de mínima quantidade de lubrificação (MQL). A avaliação das técnicas foi feita através do monitoramento do processo e da quantidade final da peça retificada. Mais especificamente, foram analisados: força tangencial de corte, rugosidade, relação G, desvio de circularidade, microestrutura e tensão residual por difração de raios X. Os resultados obtidos mostram que as duas técnicas propostas podem substituir o método convencional de lubri-refrigeração, destacando-se que a técnica otimizada reduziu o desgaste do rebolo e produziu pelas com melhor acabamento geométrico e dimensional, enquanto a técnica de MQL reduziu significativamente a quantidade de fluido utilizado no processo<br>During the last years there has been a constant concern by the companies about the modernization of their manufacturing methods, seeking to improve the process efficiency and environmental preservation. In this context, and considering the ceramic segment corresponds to approximatelly 1% of Brazilian GDP, with growing perspective, many studies have been done in this area. Nevertheless, the work piece finishing is still expensive, mainly because it has been usually made by the grinding process. Besides of the high cost of the process, the use of cutting fluids has become a problem for the industry because of the discard dificulty imposed by the rigorous environmental laws. In this way, the present work proposes alternative methods for the lubrification and cooling in the external cylindrical plunge grinding of advanced ceramic with diamond wheels, which aims to reduce the costs with cutting fluid. These methods are: the optimized cooling and the Minimal Quantity Lubrication (MQL) techniques. The evaluation of these techniques has been made by the process monitoring and the work piece final quality. In the present work the following analysis techniques were used: tangential cut force, roughness, G relation, circularity deviation, microstructure and residual stress by X ray diffraction measurements. The results show both proposed techniques can replace the conventional cooling method. The main result is that the optimized technique reduced the cutting tool consuming and produced work pieces with better dimensional finishing, while the MQL techniques significantly reduced the volume of cutting fluid in the process
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Simões, Rafael Plana. "Utilização de diferentes métodos de lubri-refrigeração na retificação cilíndrica externa de mergulho de cerâmica avançada com rebolo diamantado /." Bauru : [s.n.], 2012. http://hdl.handle.net/11449/99711.

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Orientador: Eduardo Carlos Bianchi<br>Coorientador: Paulo Roberto de Aguiar<br>Banca: Dayse Iara dos Santos<br>Banca: Roosevelt Droppa Junior<br>Banca: Leonardo Roberto da Silva<br>Banca: Jaime Gilberto Duduch<br>Resumo: Atualmente há por parte das empresas uma constante preocupação com a atualidade de seus sistemas produtivos, buscando a melhoria da eficiência dos processos respeitando as leis de preservação ambiental. Dentro desse contexto e considerando que o segmento das cerâmicas corresponde a aproximadamente 1% do PIB brasileiro, com perspectiva de crescimento, inúmeros estudos têm sido feitos nesse campo de pesquisa. Contudo, ainda se tem um alto custo agregado ao acabamento da peça, o qual é feito, na maioria dos casos, pelo processo de retificação. Além do alto custo do processamento, o uso de fluidos de corte tem se tornado um problema para a indústria devido à dificuldade de descarte imposta pela rígida Legislação Ambiental. Face ao exposto, o presente trabalho propõe o estudo de métodos alternativos de lubri-refrigeração para o processo de retificação externa de mergulho de cerâmica avançado com rebolo diamantado. Tais métodos visam diminuir os gastos com fluido de corte, sendo eles: a técnica de lubri-refrigeração otimizada e a de mínima quantidade de lubrificação (MQL). A avaliação das técnicas foi feita através do monitoramento do processo e da quantidade final da peça retificada. Mais especificamente, foram analisados: força tangencial de corte, rugosidade, relação G, desvio de circularidade, microestrutura e tensão residual por difração de raios X. Os resultados obtidos mostram que as duas técnicas propostas podem substituir o método convencional de lubri-refrigeração, destacando-se que a técnica otimizada reduziu o desgaste do rebolo e produziu pelas com melhor acabamento geométrico e dimensional, enquanto a técnica de MQL reduziu significativamente a quantidade de fluido utilizado no processo<br>Abstract: During the last years there has been a constant concern by the companies about the modernization of their manufacturing methods, seeking to improve the process efficiency and environmental preservation. In this context, and considering the ceramic segment corresponds to approximatelly 1% of Brazilian GDP, with growing perspective, many studies have been done in this area. Nevertheless, the work piece finishing is still expensive, mainly because it has been usually made by the grinding process. Besides of the high cost of the process, the use of cutting fluids has become a problem for the industry because of the discard dificulty imposed by the rigorous environmental laws. In this way, the present work proposes alternative methods for the lubrification and cooling in the external cylindrical plunge grinding of advanced ceramic with diamond wheels, which aims to reduce the costs with cutting fluid. These methods are: the optimized cooling and the Minimal Quantity Lubrication (MQL) techniques. The evaluation of these techniques has been made by the process monitoring and the work piece final quality. In the present work the following analysis techniques were used: tangential cut force, roughness, G relation, circularity deviation, microstructure and residual stress by X ray diffraction measurements. The results show both proposed techniques can replace the conventional cooling method. The main result is that the optimized technique reduced the cutting tool consuming and produced work pieces with better dimensional finishing, while the MQL techniques significantly reduced the volume of cutting fluid in the process<br>Doutor
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Cococcetta, Nicholas Michael. "Investigating Surface Finish, Burr Formation and Tool Wear During Sustainable Machining of 3D Printed Carbon Fiber Reinforced Polymer (CFRP) Composites." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1586533608277002.

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Books on the topic "Cooling and Lubrication"

1

Knowles, Don. Automotive fuel, lubrication, and cooling systems. Reston Pub. Co., 1985.

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Automotive cooling, exhaust, fuel, and lubricating systems. Reston Pub. Co., 1985.

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Company, Deere &. Fuels, lubricants, coolants, and filters: A training guide to the "hows" and "whys" of modern fuels, lubricants, coolants, and filters. Deere & Co., 2008.

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Rockstroh, William A. Fuels, lubricants, coolants and filters. 8th ed. John Deere, 2000.

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United States. National Aeronautics and Space Administration, ed. Lubrication and cooling for high speed gears. National Aeronautics and Space Administration, 1985.

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Parker, Philip M. The 2007-2012 World Outlook for Locomotive Fuel-Lubricating and Cooling-Medium Pumps. ICON Group International, Inc., 2006.

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The 2006-2011 World Outlook for Locomotive Fuel-Lubricating and Cooling-Medium Pumps. Icon Group International, Inc., 2005.

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The 2006-2011 World Outlook for Parts for Locomotives Excluding Fuel-Lubricating and Cooling-Medium Pumps. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007-2012 World Outlook for Parts for Locomotives Excluding Fuel-Lubricating and Cooling-Medium Pumps. ICON Group International, Inc., 2006.

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Parker, Philip M. The World Market for Fuel, Lubricating, or Cooling Medium Pumps for Internal Combustion Piston Engines: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Book chapters on the topic "Cooling and Lubrication"

1

Tönshoff, Hans Kurt, and Berend Denkena. "Cooling Lubrication." In Lecture Notes in Production Engineering. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33257-9_17.

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Livesey, Andrew. "Lubrication and cooling." In Practical Motorsport Engineering. Routledge, 2018. http://dx.doi.org/10.1201/9781351239189-3.

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Livesey, Andrew. "Lubrication and cooling." In Motorcycle Engineering. Routledge, 2021. http://dx.doi.org/10.1201/9780367816858-3.

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Rotella, Giovanna, and Luigino Filice. "Surface Modifications Induced by Roller Burnishing of Ti6Al4V Under Different Cooling/Lubrication Conditions." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-57729-2_10.

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Boo, Myung Hwan, and Chi Yong Park. "Root Cause Analysis of Tube Weld Failure of the Lubrication Oil Cooling Tube in Thrust Bearing of Pump." In Experimental Mechanics in Nano and Biotechnology. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-415-4.1247.

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Sharmin, Israt, Mahjabin Moon, and Faysal Hasan Asik. "Comparative Analysis on the Effect of Minimum Quantity Lubrication and Chilled Air Cooling During Turning Hardened Stainless Steel." In Intelligent Manufacturing and Energy Sustainability. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4443-3_21.

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Naskar, Anirban, Amit Choudhary, Biddu Bhushan Singh, and S. Paul. "Effect of Air Delivery Pressure and Flow Rate on Surface Integrity in Minimum Quantity Cooling Lubrication Grinding of Inconel 718." In Advances in Forming, Machining and Automation. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9417-2_23.

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Nathan, D., D. Elilraja, T. Prabhuram, and S. Prathap Singh. "Experimental Investigation of Surface Roughness in End Milling of AA6061 Alloy with Flooded Cooling and Minimum Quantity Lubrication (MQL) Technique." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4745-4_58.

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Singh, Ramesh, and Vivek Bajpai. "Coolant and Lubrication in Machining." In Handbook of Manufacturing Engineering and Technology. Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-4976-7_7-1.

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Singh, Ramesh, and Vivek Bajpai. "Coolant and Lubrication in Machining." In Handbook of Manufacturing Engineering and Technology. Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-4670-4_7.

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Conference papers on the topic "Cooling and Lubrication"

1

Leach, Ben, and Richard Pearson. "Engine Lubrication and Cooling During Hybrid Vehicle Operation." In SAE 2014 International Powertrain, Fuels & Lubricants Meeting. SAE International, 2014. http://dx.doi.org/10.4271/2014-01-2784.

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Nevala, Shawn E., Van T. Wifvat, Samuel A. Johnson, and John E. Wentz. "Relative Effects of Cooling and Lubrication in Micro-Milling of Aluminum and the Design of Atomization Cooling and Lubrication Systems." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87825.

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Accelerated tool wear and tool breakage are significant problems in micro-machining processes such as micro-milling. Traditional flood cooling processes are unsuitable for micro-milling due to the excessive collision force between the fluid stream and the tool being large enough to affect the accuracy of the cutting process. In this research an atomization-based cooling and lubrication system is presented that delivers atomized cutting fluids to a micro-milling tool through the use of an original nozzle design based on two orthogonally-directed streams. The system and nozzle is used to investigate the relative importance of cooling and lubrication on micro-milling of 6061 T6 cold-rolled aluminum with a 0.508 mm diameter two-fluted end mill. Six cutting conditions are experimentally evaluated based on cutting forces and tool life. Lubrication is investigated through two concentrations (10% and 25%) of a semi-synthetic cutting fluid. Cooling is investigated through the use of atomized deionized water as well as dry cutting with cooling provided by a Ranque-Hilsch vortex tube. Dry cutting was used as a control. Statistical testing revealed the importance of lubrication relative to cooling when machining on the micro-scale as deionized water performed the worst of all tests conducted. Based on the experimental results, recommendations are made for the design of future micro-machining cooling and lubrication systems.
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Leppert, Tadeusz. "The Effects of Cooling and Lubrication on Tool Wear in Turning 316L Steel." In 2011 International Conference on Management and Service Science (MASS 2011). IEEE, 2011. http://dx.doi.org/10.1109/icmss.2011.5999343.

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Wang, Yueyong, Yimin Zhang, Zunling Du, and Shijie Wang. "Design of Lubrication and Cooling Flushing Mechanism for Hand-held Pneumatic Rock Drill." In 5th International Conference on Vehicle, Mechanical and Electrical Engineering. SCITEPRESS - Science and Technology Publications, 2019. http://dx.doi.org/10.5220/0008849001720174.

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Lee, Pil-Ho, Dae Hoon Kim, and Sang Won Lee. "Experimental Study on Micro-Scale Milling Process Using Electro-Hydro-Dynamic (EHD) Spray Lubrication With Chilly Air." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1157.

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This paper investigates the characteristics of a micro-scale end-milling process using the electro-hydro-dynamic (EHD) spray lubrication with chilly air. A new hybrid cooling and lubrication system was developed by integrating EHD spray and chilly air supply modules. In the experiments, the milling forces and burr formation are observed according to varying cooling and lubrication conditions. It is demonstrated that the developed new hybrid cooling and lubrication system can reduce milling forces and burrs significantly.
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Hong, Shane Y. "Investigation of Liquid Nitrogen Lubrication Effect in Cryogenic Machining." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63089.

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In cryogenic machining, liquid nitrogen (LN2) is well recognized as an effective coolant due to its low temperature, however, its lubrication effect remains unknown. Our previous studies of the change in cutting forces, tool wear, chip microstructure, and friction coefficient indicate a possible lubrication effect by LN2. To verify proposed LN2 mechanisms and distinguish them, idealized disk-flat contact tests were performed. From the test results, the LN2 lubrication effect by altering material properties at low temperature was dependent on the material pairs. An uncoated carbide insert with a low carbon steel or titanium alloy disk test showed reduction of friction under LN2 cooling, but a coated insert increased the friction force. LN2 injection to form a physical barrier or hydrodynamic effect between two bodies is always effective to reduce friction force.
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Lunardelli, Andressa, and John E. Wentz. "Computational Fluid Dynamic Analysis of Atomization Spray Cooling Nozzle Designs for Micromachining." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63982.

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A recent development of cooling and lubrication technology for micromachining processes is the use of spray cooling. Atomization spray cooling systems have been shown to be more effective than traditional methods of cooling and lubrication for micromachining. Typical nozzle systems for atomization spray cooling incorporate the mixing of high speed air and atomized fluid. In a two-phase atomization spray cooling system, the atomized fluid can easily access the tool-workpiece interface, removing heat by water evaporation and lubricating the region by oil droplet spreading. The success of the system is determined in a large part by the nozzle design, which determines the droplet behavior at the cutting zone. In this study, computational fluid dynamics are used to investigate nozzle design and droplet delivery to the tool. An eccentric-angle nozzle design is evaluated through droplet flow modeling. This study focuses on the design parameters of initial droplet velocity, high speed air velocity, and the angle change between the two inlets. The system is modeled as a steady-state multiphase system without phase change. Droplet interaction with the continuous phase is dictated in the model by drag forces and fluid surface tension. The Lagragian method with a one-way coupling approach is used to analyze droplet delivery at the cutting zone. Following a factorial experimental design, deionized water droplets and a semi-synthetic cutting fluid are evaluated through model simulations. Statistical analysis of responses (droplet velocity at tool, tool positioning, and droplet density at tool) show that droplet velocity is crucial for the nozzle design and that modifying the parameters does not change droplet density in the cutting zone. Based on results, suggestions for future nozzle design are presented.
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"Experimental investigation of cooling and lubrication effects in plane grinding of AISI 304 steel." In Engineering Mechanics 2018. Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018. http://dx.doi.org/10.21495/91-8-493.

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Shao, Yamin, and Steven Y. Liang. "Predictive Force Modeling in MQL (Minimum Quantity Lubrication) Grinding." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-3971.

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Using grinding fluid is the most common strategy to generate cooling and lubrication during the grinding process. However, economic and environmental drawbacks have been noticed for conventional flood cooling. MQL, which is to apply minimum amount of lubricant directly into the contact zone, is an alternative to deal with those concerns. In order to advance the MQL technique into practical manufacturing situations, understanding of the process and evaluation of the performance is necessary. This paper presents the predictive modeling of MQL grinding force through considerations of boundary lubrication condition, single grit interaction, wheel topography, material properties, and dynamic effects. The friction coefficient was first calculated based on boundary lubrication theory. Subsequently, the single grit interaction is studied considering both chip formation and ploughing mechanisms. Then the undeformed chip thickness distribution and dynamic grit density has been calculated for extrapolating the single grit interaction to the whole wheel. Finally, the predicted tangential and normal forces were presented and compared to surface grinding experiment data.
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Grzegorz, Rotta, and Wasilczuk Michal. "CFD Analysis of the Lubricant Flow in the Supply Groove of a Hydrodynamic Thrust Bearing Pad." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44304.

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Inlet temperature is one of the main inputs in all models for analysis of fluid film bearings performance. On the other hand inlet temperature distribution and also oil speed distribution at the inlet is the result of flow phenomena in the gap between bearing pads. These phenomena are complex and in many cases additionally affected by a special bearing design incorporating various arrangements of forced oil supply to the gap between pads. The reason for such arrangements is more efficient introducing of the lubricant cooled in an external cooling system to the oil film. Not much is known about flow phenomena in the gap between the pads and even less if the bearing is fitted with any kind of directed lubrication system. One of those special bearing arrangement is a leading edge groove (LEG) design described by Mikula [1] Experimental results showed that LEG lubricating system in comparison to flooded lubrication caused about 10–20°C drop in maximum temperature in high-speed bearings. But not much is known of potential benefits of using this lubrication method in large low-speed bearings applied in water turbines. There were no attempts of adaptation of this lubrication system to large size bearings. In this case modeling is necessary because of large cost of experiments. Contemporary computer codes of Computational Fluid Dynamics (CFD) enable one to study flow between bearing pads or in lubricating groove and even to build models of a whole hydrodynamic bearing within CFD systems. Some results of modeling lubricant flow in the gap in a bearing with a directed lubrication system are presented in the paper.
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Reports on the topic "Cooling and Lubrication"

1

Ozeki, Hiroshi. The Technology About Lubrication and Cooling of a Bearing for Machine Tool Spindle. SAE International, 2005. http://dx.doi.org/10.4271/2005-08-0135.

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GRAMS, W. H. Hazard Evaluation for a Salt Well Centrifugal Pump Design Using Service Water for Lubrication and Cooling. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/805385.

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GRAMS, W. H. Hazard Evaluation for the Saltwell Chempump and a Saltwell Centrifugal Pump Design using Service Water for Lubrication and Cooling. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/805639.

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