An Initial Study of the Effect of Using Liquid Nitrogen Coolant on the Surface Roughness of Inconel 718 Nickel-Based Alloy in CNC Milling

Shokrani, Alborz; Dhokia, Vimal; Newman, Stephen T.; Imani-Asrai, R.

doi:10.1016/j.procir.2012.07.022

Cited by 90 publications

(31 citation statements)

References 14 publications

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“…Similar results for milling Inconel 718 were reported by Shokrani et al [204]. In the above-mentioned studies [3,111,204], the cryogenic media was supplied externally onto the tool. Recent research work has focused on the supply of CO 2 through the spindle and the tool in order to improve the cooling effect near the cutting edge.…”

Section: Cryogenic Machiningsupporting

confidence: 74%

High performance cutting of advanced aerospace alloys and composite materials

M’Saoubi¹,

et al. 2015

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Section: Cryogenic Machiningsupporting

confidence: 74%

High performance cutting of advanced aerospace alloys and composite materials

M’Saoubi¹,

et al. 2015

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“…The results showed that tool life of mills in down-copying is longer than mills in up-copying due to lower effective cutting speed during the copy-milling. A. Shokrani et.al [12] presents one of the very first studies on cryogenic CNC end milling of the Inconel 718 nickel based alloy using TiAlN coated solid carbide tools. Cutting parameters selected were tool diameter, cutting speed, fees rate, depth of cut and immersion rate whereas response factors selected were surface roughness, tool wear and power consumption.…”

Section: Literature Surveymentioning

confidence: 99%

Optimization of CNC Milling Process by using Different Coatings - A Review

Shelar¹,

M²

2017

International Advanced Research Journal in Science, Engineering

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Quality and productivity play important role in today's manufacturing market. In machining operations, achieving desired surface quality features of the machined product, is really a challenging job on CNC machine. Now a day's due to very stiff and cut throat competitive market condition in manufacturing industries. The main objective of industries reveal with producing better quality product at minimum cost and increase productivity. CNC milling is most vital and common operation use for produce machine part with desire surface quality and higher productivity with less time and cost constrain. To obtain main project an attempt is made to understand the effect of machining parameters such as cutting speed (m/min), feed rate (mm/min),depth of cut (mm) that are influences on responsive output parameters such as Surface Roughness, material removal rate, diamentinal accuracy in this the flatness can be measured by using optimization philosophy. In this work three levels and three parameters are considered; and L27 orthogonal array should be carried out by using two different insert coatings. For the experimentation the wet conditions is taken. In this optimization of milling process parameters using Taguchi method in machining of AISI 316 stainless steel is carried out.

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“…Shokrani et al [4] discovered a 40% reduction in surface roughness (R a ) compared to dry turning under cryogenic cooling. Although there is clear interest in the cryogenic assisted machining [5], the available publications reveal many contradictory results, such as an increase and decrease of the cutting forces and premature tool failure [6]- [7].…”

Section: Introductionmentioning

confidence: 99%

“…For instance, a value of approximately 5x10 4 W/m².K was reported by Jawahir et al [14] for cryogenic cooling during machining. Pusavec et al [15] proposed a value of 2.5x10 5 W/m².K, whereas Hribersek [13] proposes an h coefficient of approximately 1.5x10 4 , which was determined by the inverse method based on cutting temperature measurement and numerical simulations. All of those values were determined by using several approaches.…”

Section: Introductionmentioning

confidence: 99%

Hybrid experimental/modelling methodology for identifying the convective heat transfer coefficient in cryogenic assisted machining

Lequien

Poulachon

Outeiro

et al. 2018

Applied Thermal Engineering

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible.This is an author-deposited version published in: https://sam.ensam.eu Handle ID: .http://hdl.handle.net/10985/12049 To cite this version :Pierre LEQUIEN, Gérard POULACHON, José OUTEIRO, Joël RECH -Hybrid experimental/modelling methodology for identifying the convective heat transfer coefficient in cryogenic assisted machining -Applied Thermal Engineering p.14 -2017Any correspondence concerning this service should be sent to the repository This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Hybrid experimental/modelling methodology for identifying the convective heat transfer coefficient in cryogenic assisted machining ABSTRACTCryogenic assisted machining has become a very popular method in the metal cutting industry, as it enables the cooling of a cutting zone for improving surface integrity or/and tool life without contaminating the machined part. However, the thermal interaction between liquid nitrogen (LN 2 ) and a hot cutting zone remains unclear. The main objective of this work is to analyse the thermal phenomena occurring at the LN 2 jet/workpiece interface. The nitrogen liquid/gas phase proportion has a significant influence on the heat transfer. To determine the influence of LN 2 jet parameters on the convective heat transfer coefficient, a model based on the projection of an LN 2 jet on a workpiece instrumented with thermocouples is proposed. The most influential parameters of the thermal distribution and heat transfer coefficient are LN 2 pressure, nozzle diameter, projection angle and the distance between the nozzle and the workpiece surface.

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An Initial Study of the Effect of Using Liquid Nitrogen Coolant on the Surface Roughness of Inconel 718 Nickel-Based Alloy in CNC Milling

Cited by 90 publications

References 14 publications

High performance cutting of advanced aerospace alloys and composite materials

High performance cutting of advanced aerospace alloys and composite materials

Optimization of CNC Milling Process by using Different Coatings - A Review

Hybrid experimental/modelling methodology for identifying the convective heat transfer coefficient in cryogenic assisted machining

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