The Experts below are selected from a list of 10929 Experts worldwide ranked by ideXlab platform
Ahmadreza Hosseini Tazehkandi - One of the best experts on this subject based on the ideXlab platform.
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application of liquid nitrogen and spray mode of biodegradable vegetable Cutting Fluid with compressed air in order to reduce Cutting Fluid consumption in turning inconel 740
Journal of Cleaner Production, 2015Co-Authors: Ahmadreza Hosseini Tazehkandi, Mohammadreza Shabgard, Farid PilehvarianAbstract:Abstract Inconel 740, similar to other nickel-based superalloys, owing to its superior characteristics such as having high corrosion and heat resistance, can retain its mechanical and chemical properties in elevated temperature, therefore, it has extensive applications in aerospace, shipbuilding and turbine manufacturing industries. Nevertheless, very low heat transfer coefficient and high toughness, along with work hardening, can put these alloys in the category of hard-machining materials, and it may induce severe problems in increasing machining input parameters. Thereby, utilizing an appropriate Cutting Fluid is an indispensable part of the machining in these alloys. Making use of the Cutting Fluid can cause various problems, include environmental pollution, adverse effects on human health and high machining cost. Therefore, finding a way to reduce the Cutting Fluid consumption and a method to increase input parameters, such as Cutting speed and feed rate, is of great importance in industry. In the present study, the influences of machining parameters on Cutting forces, surface roughness and tool tip temperature have been investigated in two modes of Cutting Fluid application, flood mode and spray mode of liquid nitrogen with biodegradable vegetable Cutting Fluid in combination with compressed air, in order to make a dramatic reduction in the Cutting Fluid consumption. The results show that using liquid nitrogen in combination with spray mode of the Cutting Fluid and compressed air, not only can reduce the Cutting forces and tool tip temperature, but also in all of the experiments, Cutting Fluid consumption is lower than flood mode, and it is possible to attain high Cutting speeds and feed rates. It is worth mentioning that by making use of this approach it is feasible to measure temperatures via a thermal imager in order to control the machining process.
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on the feasibility of a reduction in Cutting Fluid consumption via spray of biodegradable vegetable oil with compressed air in machining inconel 706
Journal of Cleaner Production, 2015Co-Authors: Ahmadreza Hosseini Tazehkandi, Mohammadreza Shabgard, Farid PilehvarianAbstract:Abstract Superalloys, such as Inconel 706, have extensive applications in aerospace and turbine manufacturing industries owing to their exceptional characteristics, especially high corrosion resistance and stability in elevated temperatures. However, they usually suffer from low coefficient of heat transfer, which can put them in the category of hard-machining alloys. Therefore, utilizing a Cutting Fluid is the indispensable part of superalloy machining process. Investigating the feasibility of reducing or even removing the Cutting Fluid plays a crucial role in the machining, since it may induce high machining costs, detrimental impacts on environment and endanger human health. In the present article, influences of machining parameters on forces, surface roughness and tool tip temperature were investigated in two modes of utilizing Fluid, which were flood mode and spraying with compressed air, in order to reduce or eliminate the Cutting Fluid from turning process of Inconel 706. The results revealed that spray mode of Cutting Fluid in combination with compressed air can ameliorate the heat transfer problem. Moreover, in all of the experiments with spray mode, Cutting forces, surface roughness and temperature of Cutting area were significantly lower than using Fluid with flood mode. This can result in a remarkable decrease in consumption of Cutting Fluid, which in turn, can solve the environmental issues. Furthermore, during machining with using Cutting Fluid in spray mode, it is possible to monitor the temperature of machining area via thermal imager in order to have an appropriate control over machining process. Eventually, optimum values of machining parameters were proposed for machining with spray mode of Cutting Fluid.
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experimental investigation and optimization of Cutting parameters in dry and wet machining of aluminum alloy 5083 in order to remove Cutting Fluid
Journal of Cleaner Production, 2014Co-Authors: Ehnam Davoodi, Ahmadreza Hosseini TazehkandiAbstract:Abstract Many problems such as health and environment issues are identified with the use of flood Cutting Fluids in machining processes. Considerable attention has been given to reduce or completely omit the Cutting Fluids, and meet the demands for environment-friendly Cutting processes. In this study, the effects of Cutting speed and undeformed chip thickness on Cutting and feed force components and tool tip temperature were experimentally investigated in order to remove Cutting Fluid. AA5083-O wrought alloy with a high Mg content (4.5%) was machined in dry and wet machining conditions utilizing coated carbide tool. Two-factor (Cutting speed and undeformed chip thickness) and five-level fractional experiment designs completed with a statistical analysis of variance (ANOVA) were performed. Mathematical models for Cutting and feed force components and tool tip temperature were developed using the Response Surface Methodology (RSM). Results show that the output variables are significantly affected by the undeformed chip thickness. On the other hand, in the high Cutting speed and low undeformed chip thickness, AA5083 can be machined without Cutting Fluid. Also, both Cutting speed and undeformed chip thickness have statistical significance on the Cutting and feed force components in dry and wet machining. Finally, the appropriate ranges for the optimal turning conditions were proposed for industrial production.
N. R. Dhar - One of the best experts on this subject based on the ideXlab platform.
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Effects of minimum quantity lubrication on turning AISI 9310 alloy steel using vegetable oilbased Cutting Fluid
Journal of Materials Processing Technology, 2009Co-Authors: M M A Khan, M A H Mithu, N. R. DharAbstract:This paper presents the effects of minimum quantity lubrication (MQL) by vegetable oil-based Cutting Fluid on the turning performance of low alloy steel AISI 9310 as compared to completely dry and wet machining in terms of chip–tool interface temperature, chip formation mode, tool wear and surface roughness. The minimum quantity lubrication was provided with a spray of air and vegetable oil. MQL machining was performed much superior compared to the dry and wet machining due to substantial reduction in Cutting zone temperature enabling favorable chip formation and chip–tool interaction. It was also seen from the results that the substantial reduction in tool wears resulted in enhanced the tool life and surface finish. Furthermore, MQL provides environment friendliness (maintaining neat, clean and dry working area, avoiding inconvenience and health hazards due to heat, smoke, fumes, gases, etc. and preventing pollution of the surroundings) and improves the machinability characteristics.
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effects of minimum quantity lubrication on turning aisi 9310 alloy steel using vegetable oil based Cutting Fluid
Journal of Materials Processing Technology, 2009Co-Authors: M M A Khan, M A H Mithu, N. R. DharAbstract:This paper presents the effects of minimum quantity lubrication (MQL) by vegetable oil-based Cutting Fluid on the turning performance of low alloy steel AISI 9310 as compared to completely dry and wet machining in terms of chip–tool interface temperature, chip formation mode, tool wear and surface roughness. The minimum quantity lubrication was provided with a spray of air and vegetable oil. MQL machining was performed much superior compared to the dry and wet machining due to substantial reduction in Cutting zone temperature enabling favorable chip formation and chip–tool interaction. It was also seen from the results that the substantial reduction in tool wears resulted in enhanced the tool life and surface finish. Furthermore, MQL provides environment friendliness (maintaining neat, clean and dry working area, avoiding inconvenience and health hazards due to heat, smoke, fumes, gases, etc. and preventing pollution of the surroundings) and improves the machinability characteristics.
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THE INFLUENCE OF MINIMUM QUANTITY OF LUBRICATION (MQL) BY VEGETABLE OIL-BASED Cutting Fluid ON MACHINABILITY OF STEEL
2005Co-Authors: N. R. Dhar, M. W. IslamAbstract:The growing demands for high productivity of machining need use of high Cutting velocity and feed rate. Such machining inherently produces high Cutting temperature, which not only reduces tool life but also impairs the product quality. Metal Cutting Fluids changes the performance of machining operations because of their lubrication, cooling, and chip flushing functions but the use of Cutting Fluid has become more problematic in terms of both employee health and environmental pollution. Because of them some alternatives has been sought to minimize or even avoid the use of Cutting Fluid in machining operations. Some of these alternatives are dry machining and machining with minimum quantity of lubrication (MQL). This paper deals with experimental investigation on the role of MQL on Cutting temperature, tool wear, surface finish and dimensional deviation in turning of AISI-1040 steel at industrial speed-feed combinations by uncoated carbide insert. The encouraging results include significant reduction in Cutting temperature, tool wears and dimensional inaccuracy by MQL mainly through favorable chip-tool and work-tool interaction.
Yongcheol Hong - One of the best experts on this subject based on the ideXlab platform.
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regeneration and purification of water soluble Cutting Fluid through ozone treatment using an air dielectric barrier discharge
Separation and Purification Technology, 2018Co-Authors: Yongcheol HongAbstract:Abstract Cutting Fluids are essential for Cutting performance and rust prevention in metalworking processes. Among Cutting oils, the usage of water-soluble Cutting Fluids is increasing rapidly because they afford excellent cooling performance and ensure fire safety. However, water-soluble Cutting Fluids also offer a favorable environment for the growth of a wide variety of microorganisms. The growth of microorganisms can lead to various problems such as deterioration of the Cutting Fluids and odor generation. Thus, technologies for purifying the waste of water-soluble Cutting Fluids are required. In this study, we developed an ozone treatment technology that uses an air DBD plasma system. Furthermore, sterilization experiments were performed with K. pneumoniae, P. aeruginosa, E. coli, and P. vulgaris as representative microorganisms. The system offers the advantages of low power consumption and simple structure. Approximately 1000 ppm of ozone could be stably generated under optimized conditions, and the ozone was injected into the reactor as micro-bubbles for improving reactivity and inactivation rate. The sterilization experiments confirmed that the water-soluble Cutting Fluid was sterilized by 99.99%. As a result, the turbidity, pH, and odor of water-soluble Cutting Fluid have been improved.
Farid Pilehvarian - One of the best experts on this subject based on the ideXlab platform.
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application of liquid nitrogen and spray mode of biodegradable vegetable Cutting Fluid with compressed air in order to reduce Cutting Fluid consumption in turning inconel 740
Journal of Cleaner Production, 2015Co-Authors: Ahmadreza Hosseini Tazehkandi, Mohammadreza Shabgard, Farid PilehvarianAbstract:Abstract Inconel 740, similar to other nickel-based superalloys, owing to its superior characteristics such as having high corrosion and heat resistance, can retain its mechanical and chemical properties in elevated temperature, therefore, it has extensive applications in aerospace, shipbuilding and turbine manufacturing industries. Nevertheless, very low heat transfer coefficient and high toughness, along with work hardening, can put these alloys in the category of hard-machining materials, and it may induce severe problems in increasing machining input parameters. Thereby, utilizing an appropriate Cutting Fluid is an indispensable part of the machining in these alloys. Making use of the Cutting Fluid can cause various problems, include environmental pollution, adverse effects on human health and high machining cost. Therefore, finding a way to reduce the Cutting Fluid consumption and a method to increase input parameters, such as Cutting speed and feed rate, is of great importance in industry. In the present study, the influences of machining parameters on Cutting forces, surface roughness and tool tip temperature have been investigated in two modes of Cutting Fluid application, flood mode and spray mode of liquid nitrogen with biodegradable vegetable Cutting Fluid in combination with compressed air, in order to make a dramatic reduction in the Cutting Fluid consumption. The results show that using liquid nitrogen in combination with spray mode of the Cutting Fluid and compressed air, not only can reduce the Cutting forces and tool tip temperature, but also in all of the experiments, Cutting Fluid consumption is lower than flood mode, and it is possible to attain high Cutting speeds and feed rates. It is worth mentioning that by making use of this approach it is feasible to measure temperatures via a thermal imager in order to control the machining process.
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on the feasibility of a reduction in Cutting Fluid consumption via spray of biodegradable vegetable oil with compressed air in machining inconel 706
Journal of Cleaner Production, 2015Co-Authors: Ahmadreza Hosseini Tazehkandi, Mohammadreza Shabgard, Farid PilehvarianAbstract:Abstract Superalloys, such as Inconel 706, have extensive applications in aerospace and turbine manufacturing industries owing to their exceptional characteristics, especially high corrosion resistance and stability in elevated temperatures. However, they usually suffer from low coefficient of heat transfer, which can put them in the category of hard-machining alloys. Therefore, utilizing a Cutting Fluid is the indispensable part of superalloy machining process. Investigating the feasibility of reducing or even removing the Cutting Fluid plays a crucial role in the machining, since it may induce high machining costs, detrimental impacts on environment and endanger human health. In the present article, influences of machining parameters on forces, surface roughness and tool tip temperature were investigated in two modes of utilizing Fluid, which were flood mode and spraying with compressed air, in order to reduce or eliminate the Cutting Fluid from turning process of Inconel 706. The results revealed that spray mode of Cutting Fluid in combination with compressed air can ameliorate the heat transfer problem. Moreover, in all of the experiments with spray mode, Cutting forces, surface roughness and temperature of Cutting area were significantly lower than using Fluid with flood mode. This can result in a remarkable decrease in consumption of Cutting Fluid, which in turn, can solve the environmental issues. Furthermore, during machining with using Cutting Fluid in spray mode, it is possible to monitor the temperature of machining area via thermal imager in order to have an appropriate control over machining process. Eventually, optimum values of machining parameters were proposed for machining with spray mode of Cutting Fluid.
M M A Khan - One of the best experts on this subject based on the ideXlab platform.
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Effects of minimum quantity lubrication (MQL) by vegetable oil-based Cutting Fluid on machinability of AISI 9310 steel
International Journal of Machining and Machinability of Materials, 2010Co-Authors: Nikhil Ranjan Dhar, M M A KhanAbstract:The growing demands for high productivity of machining need use of high Cutting speed and feed rate. Such machining inherently produces high Cutting temperature, which not only reduces tool life but also impairs the product quality. Metal Cutting Fluids changes the performance of machining operations because of their lubrication, cooling and chip flushing functions but the use of Cutting Fluid has become more problematic in terms of both employee health and environmental pollution. The minimisation of Cutting Fluid leads to economical benefits by way of saving lubricant costs. This paper presents the effects of minimum quantity lubricant (MQL) by vegetable oil-based Cutting Fluid on the Cutting performance of AISI 9310 steel, as compared to dry and wet machining. Compared to the dry or wet machining, MQL machining performed much superior mainly due to substantial reduction in Cutting temperature enabling favourable chip formation and chip-tool interaction. It also provides substantial reduction in tool wear, which enhanced the tool life and surface finish.
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Effects of minimum quantity lubrication on turning AISI 9310 alloy steel using vegetable oilbased Cutting Fluid
Journal of Materials Processing Technology, 2009Co-Authors: M M A Khan, M A H Mithu, N. R. DharAbstract:This paper presents the effects of minimum quantity lubrication (MQL) by vegetable oil-based Cutting Fluid on the turning performance of low alloy steel AISI 9310 as compared to completely dry and wet machining in terms of chip–tool interface temperature, chip formation mode, tool wear and surface roughness. The minimum quantity lubrication was provided with a spray of air and vegetable oil. MQL machining was performed much superior compared to the dry and wet machining due to substantial reduction in Cutting zone temperature enabling favorable chip formation and chip–tool interaction. It was also seen from the results that the substantial reduction in tool wears resulted in enhanced the tool life and surface finish. Furthermore, MQL provides environment friendliness (maintaining neat, clean and dry working area, avoiding inconvenience and health hazards due to heat, smoke, fumes, gases, etc. and preventing pollution of the surroundings) and improves the machinability characteristics.
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effects of minimum quantity lubrication on turning aisi 9310 alloy steel using vegetable oil based Cutting Fluid
Journal of Materials Processing Technology, 2009Co-Authors: M M A Khan, M A H Mithu, N. R. DharAbstract:This paper presents the effects of minimum quantity lubrication (MQL) by vegetable oil-based Cutting Fluid on the turning performance of low alloy steel AISI 9310 as compared to completely dry and wet machining in terms of chip–tool interface temperature, chip formation mode, tool wear and surface roughness. The minimum quantity lubrication was provided with a spray of air and vegetable oil. MQL machining was performed much superior compared to the dry and wet machining due to substantial reduction in Cutting zone temperature enabling favorable chip formation and chip–tool interaction. It was also seen from the results that the substantial reduction in tool wears resulted in enhanced the tool life and surface finish. Furthermore, MQL provides environment friendliness (maintaining neat, clean and dry working area, avoiding inconvenience and health hazards due to heat, smoke, fumes, gases, etc. and preventing pollution of the surroundings) and improves the machinability characteristics.
