Mechanistic Modeling Of Cutting Forces In Wavy Edge Bull Nose Helical End Milling Of Inconel 718 Under Different Cooling Lubrication Strategies
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Mechanistic Modeling Of Cutting Forces In Wavy Edge Bull Nose Helical End Milling Of Inconel 718 Under Different Cooling Lubrication Strategies
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Author : Abdulhakim Ali Sultan
language : en
Publisher:
Release Date : 2015
Mechanistic Modeling Of Cutting Forces In Wavy Edge Bull Nose Helical End Milling Of Inconel 718 Under Different Cooling Lubrication Strategies written by Abdulhakim Ali Sultan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
"This research presents the results of the development of a mechanistic cutting force prediction model for the wavy-edge bull-nose helical endmill (WEBNHE). The mechanistic model was developed to predict cutting force components and the resultant cutting force in high-speed end-milling of Inconel 718 under two cooling strategies: emulsion and Minimum Quantity Lubrication (MQL). The effects of the cooling strategies are incorporated into the mechanistic model through six cutting force coefficients (K[sub tc] ,K[sub rc] ,K[sub ac]), and edge force coefficients (K[sub te], K[sub re], K[sub ae]), which have been experimentally identified in a separate research. The mechanistic model was validated by conducting end-milling experiments on Inconel 718 using a WEBNHE of 1.25'' diameter under emulsion and MQL cooling strategies. In addition to cutting forces prediction, the mechanistic cutting force prediction model is used to investigate the effects of the cooling strategy, and the effects of the geometric parameters of the WEBNHE on the predicted cutting force components and the resultant cutting force. The geometric parameters investigated in this research were: wave magnitude, wave length, axial shift, and the helix angle. The cutting force components and the resultant cutting force predicted by this mechanistic cutting force model under the two cooling strategies were in good agreement with the experimental results. Additionally, the results show that an increase in the depth of cut under MQL generates less cutting force than the same increase under emulsion. Moreover, all predicted cutting force components increase when the magnitude of the WEBNHE increases, whereas they decrease when the wave length, axial shift, and the helix angle increase"--Abstract, page iv.
Mechanistic Identification Of Specific Force Coefficients In Endmilling Inconel 718 Under Four Cooling Strategies
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Author : Mahmood Shaman Ameen
language : en
Publisher:
Release Date : 2014
Mechanistic Identification Of Specific Force Coefficients In Endmilling Inconel 718 Under Four Cooling Strategies written by Mahmood Shaman Ameen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
"This thesis presents the results of experimental investigations of the mechanistic identification of specific force coefficients for uncoated bull-nose and uncoated wavy-edge/bull-nose helical endmilling of Inconel 718 under emulsion, minimum quantity lubrication (MQL), cryogenic (LN2), and combined (MQL + LN2) cooling. Several slot milling tests were conducted on Inconel 718 workpiece block with depth of cut 1.25 mm. The cutting parameters were varied as: spindle speed, n = 250 and 750 rev/min, feedrate, f = 25-75 mm/min by using uncoated carbide bull-nose helical endmill. Also 24 peripheral milling tests were conducted on Inconel 718 workpiece block with axial depth of cut 18.75 mm and radial depth of cut 1.75 mm. The cutting parameters were varied as: spindle speed, n = 62 and 93 rev/min, feedrate, f = 27.9-55.8 mm/min by using uncoated cobalt wavy-edge/bull-nose helical endmill. Cutting force components and specific force coefficients have been experimentally determined to compare the effects of different cooling methods. Eventually, six specific cutting and edge force coefficients (Ktc, Krc, Kac, Kte, Kre, Kae) have been determined for uncoated bull- nose and uncoated wavy-edge/bull-nose helical endmilling of Inconel 718 workpiece under the four cooling methods (Emulsion, MQL, LN2, and combined (MQL+LN2)), thus a new database that hitherto does not exist in published literature has been created to be used for accurate prediction of cutting forces under typical industrial machining conditions"--Abstract, page iv.
Intelligent Manufacturing System And Intelligent Workshop
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Author : Jinfeng Wang
language : en
Publisher: Springer Nature
Release Date : 2024-01-05
Intelligent Manufacturing System And Intelligent Workshop written by Jinfeng Wang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-05 with Technology & Engineering categories.
This book focuses on the basic common technologies of smart manufacturing system and smart workshop. The applications of artificial intelligence in manufacturing system have been addressed from different perspectives, for example, smart optimization of cutting parameters, smart process planning, smart workshop and scheduling, and smart integration of process planning and scheduling. In the process of writing, this book highlights the combination of basic theory and engineering practice. In the basic theory part, the book clearly explains the basic issues of smart manufacturing system, including the core support technology of smart manufacturing, the basic theories and models of cutting parameter optimization, process optimization and scheduling, and the basic concepts and intelligence of smart manufacturing workshop model, optimization methods, etc. In the engineering practice part, this book enumerates a large number of research cases, trying to clearly demonstrate the basic problems of manufacturing system intelligence, and each chapter is accompanied by typical cases to help readers better understand and master the basic theories involved in stamping.
Development Of Virtual Cnc Machine Tools And Web Based Machining Process Simulation Mechanistic Cutting Force Models And Determination Of Specific Force Coefficients In Helical End Milling
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Author : Vinay Rao Talekar
language : en
Publisher:
Release Date : 2011
Development Of Virtual Cnc Machine Tools And Web Based Machining Process Simulation Mechanistic Cutting Force Models And Determination Of Specific Force Coefficients In Helical End Milling written by Vinay Rao Talekar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Titanium alloys categories.
"This thesis presents the results of the investigations of mechanistic modeling and simulation of cutting forces in high speed end milling of titanium alloy, Ti-6Al-4V, and the determination of specific cutting and edge force coefficients for carbide bull-nose helical end-mill. A generalized mathematical model representing the outer geometry of an end-mill and the cutter edge geometry is presented. Mechanistic cutting force models have been developed for a general helical end-mill and modeled specifically for a bullnose helical end-mill. A MATLAB code for the mechanistic cutting force models have been developed for the simulation of cutting force components in end milling and for the determination of specific cutting and edge force coefficients for any workpiece-tool material pair. Specific cutting and edge force coefficients are obtained for carbide bullnose helical end-mill - titanium alloy workpiece material pair at 10% radial immersion up-milling experiments. The effects of machining parameters: feed per tooth, helix angle, axial depth of cut, corner radius, number of cutter flutes, and spindle speed on cutting forces were investigated. End milling experiments were conducted on titanium alloy, Ti-6Al-4V, using a 0.5 inch (12.7 mm) diameter carbide bull-nose helical end-mill to verify the models. Predicted cutting force components (F[subscript x], F[subscript y], and F[subscript z]) obtained by the mechanistic cutting force models were compared with measured experimental values, and also with predicted and measured values from published literature. The results were in good agreement in both cases. This method for the determination of specific force coefficients and predicting cutting forces for titanium alloys can easily be extended to other metal alloys such as Hastelloy, Inconel, and niobium alloys"--Abstract, leaf iv.
High Speed Machining
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Author : Kapil Gupta
language : en
Publisher: Academic Press
Release Date : 2020-01-31
High Speed Machining written by Kapil Gupta and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-31 with Technology & Engineering categories.
High-Speed Machining covers every aspect of this important subject, from the basic mechanisms of the technology, right through to possible avenues for future research. This book will help readers choose the best method for their particular task, how to set up their equipment to reduce chatter and wear, and how to use simulation tools to model high-speed machining processes. The different applications of each technology are discussed throughout, as are the latest findings by leading researchers in this field. For any researcher looking to understand this topic, any manufacturer looking to improve performance, or any manager looking to upgrade their plant, this is the most comprehensive and authoritative guide available. Summarizes important R&D from around the world, focusing on emerging topics like intelligent machining Explains the latest best practice for the optimization of high-speed machining processes for greater energy efficiency and machining precision Provides practical advice on the testing and monitoring of HSM machines, drawing on practices from leading companies
Machinability Improvement During High Speed End Milling Of Inconel 718 Alloy
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Author : Chukwujekwu Ikwy Nnadi
language : en
Publisher:
Release Date : 2014
Machinability Improvement During High Speed End Milling Of Inconel 718 Alloy written by Chukwujekwu Ikwy Nnadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
"This thesis presents the results of the experimental investigation of the effects of machining parameters (spindle speed and feedrate) and cooling strategies [Minimum Quantity Lubrication (MQL), Cryogenic Liquid Nitrogen (LN2), and combined (MQL+LN2)] on cutting force components, cutting temperature, tool wear and surface roughness during high-speed slot end-milling of Inconel 718 alloy. In addition, a comparative evaluation of the three cooling strategies was conducted for cutting force components, surface roughness and residual stresses. All end-milling experiments were conducted on a Cincinnati Milacron Vertical Machining center (VMC), using a 0.5 inch (12.7 mm) diameter, 0.03 inch (0.762 mm) corner radius four-flute uncoated carbide end-mill. A one-third fractional factorial design of experiments was constructed (nine experimental runs) and used in analyzing all experimental results. Cutting force components were acquired using a Kistler type 9272 4-component dynamometer, which was connected to an amplifier and a junction box. Cutting temperature was measured using a 0.125 inch (3.175 mm) diameter ungrounded k-type thermocouple, while tool wear was investigated indirectly by analyzing the maximum cutting force components of the last two passes (19 and 20). Surface roughness and residual stresses were measured using a profilometer and X-ray diffraction respectively. The results showed that high spindle speed (750 rpm) and medium feed rate (2 ipm) gave the lowest cutting force components, while low spindle speed (250 rpm) gave the lowest cutting temperature and tool wear. Furthermore, a low spindle speed (250 rpm) and feed rate (1 ipm) gave the least surface roughness, while MQL cooling strategy induced the highest compressive stresses"--Abstract, page iv.
The Application Of A Mechanistic Model For End Milling Cutting Forces To The Study Of Forging And Cornering Cuts
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Author : Jeffrey Ross Lindberg
language : en
Publisher:
Release Date : 1980
The Application Of A Mechanistic Model For End Milling Cutting Forces To The Study Of Forging And Cornering Cuts written by Jeffrey Ross Lindberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with categories.
The Study Of Coated Carbide Ball End Milling Tools On Inconel 718 Using Numerical Simulation Analysis To Attain Cutting Force And Temperature Predictive Models At The Cutting Zone
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Author :
language : en
Publisher:
Release Date : 2017
The Study Of Coated Carbide Ball End Milling Tools On Inconel 718 Using Numerical Simulation Analysis To Attain Cutting Force And Temperature Predictive Models At The Cutting Zone written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Study Of Cutting Force And Tool Wear In End Milling Inconel 718 With Coated Carbride Inserts In Dry Condition
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Author :
language : en
Publisher:
Release Date : 2006
Study Of Cutting Force And Tool Wear In End Milling Inconel 718 With Coated Carbride Inserts In Dry Condition written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Metal-cutting categories.
Theoretical Modeling And Simulation Of Cutting Forces In Helical End Milling
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Author : Lei Pang
language : en
Publisher:
Release Date : 2008
Theoretical Modeling And Simulation Of Cutting Forces In Helical End Milling written by Lei Pang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Force and energy categories.