Environment Friendly Machining of Inconel 625 under Nano-Fluid Minimum Quantity Lubrication (NMQL)

2018 ◽  
Vol 19 (11) ◽  
pp. 1689-1697 ◽  
Author(s):  
Talwinder Singh ◽  
Jasminder Singh Dureja ◽  
Manu Dogra ◽  
Manpreet S. Bhatti
Keyword(s):  
Minimum Quantity Lubrication ◽  
Inconel 625 ◽  
Environment Friendly ◽  
Minimum Quantity ◽  
Nano Fluid

scholarly journals Nanofluid-based Minimum Quantity Lubrication (MQL) Face Milling of Inconel 625

2019 ◽  
Vol 16 (3) ◽  
pp. 6874-6888
Author(s):  
P. Singh ◽  
J. S. Dureja ◽  
H. Singh ◽  
M. S. Bhatti
Keyword(s):  
Negative Impact ◽  
Cutting Speed ◽  
Minimum Quantity Lubrication ◽  
Face Milling ◽  
Cutting Fluid ◽  
Inconel 625 ◽  
Depth Of Cut ◽  
Base Oil ◽  
Minimum Quantity ◽  
Milling Parameters

Machining with minimum quantity lubrication (MQL) has gained widespread attention to boost machining performance of difficult to machine materials such as Ni-Cr alloys, especially to reduce the negative impact of conventional flooded machining on environment and machine operator health. The present study is aimed to evaluate MQL face milling performance of Inconel 625 using nano cutting fluid based on vegetable oil mixed with multi-walled carbon nanotubes (MWCNT). Experiments were designed with 2-level factorial design methodology. ANOVA test and desirability optimisation method were employed to arrive at optimised milling parameters to achieve minimum tool wear and machined surface quality. Experiments were performed under nanoparticles based minimum quantity lubrication (NMQL) conditions using different weight concentrations of MWCNT in base oil: 0.50, 0.75, 1, 1.25 and 1.5 wt. %; and pure MQL environment (without nanoparticles). The optimal MQL milling parameters found are cutting speed: 47 m/min, table feed rate: 0.05 mm/tooth and depth of cut: 0.20 mm. The results revealed improvement in the surface finish (Ra) by 17.33% and reduction in tool flank wear (VB) by 11.48 % under NMQL face milling of Inconel 625 with 1% weight concentration of MWCNT in base oil compared to pure MQL machining conditions.

scholarly journals Environment Friendly Minimum Quantity Lubrication Technique

2018 ◽  
Vol 7 (2) ◽  
pp. 147-148
Author(s):  
Roshan Lal Virdi
Keyword(s):  
Vegetable Oils ◽  
Base Fluid ◽  
Minimum Quantity Lubrication ◽  
Health Problems ◽  
Environment Friendly ◽  
Minimum Quantity ◽  
Base Oils ◽  
Environment And Health

Lubricants are always important for the machining of materials for any industry. Large quantity of rational lubricants poses environment and health problems to the workers. Research is focused nowadays on to replace traditional fluids which are harmful to meet the striker laws of environment. Nanofluids can be the alternative if made with proper base oils to protect the environment and workers health. Nanofluids has the ability to transfer more heat with good lubrication effects. Environment friendly nanoparticles with vegetable oils as base fluid in Minimum Quantity Lubrication (MQL) technique can help the industries to eliminate traditional oils.

scholarly journals Tribological Effects of H-Bn Nano Cutting Fluid - Minimum Quantity Lubrication (Nf-Mql) on Machining Inconel 625

2019 ◽  
Vol 9 (1) ◽  
pp. 2306-2315 ◽  
Keyword(s):  
Optimization Technique ◽  
Minimum Quantity Lubrication ◽  
Chip Morphology ◽  
Machining Process ◽  
Cutting Fluid ◽  
Inconel 625 ◽  
Machining Parameters ◽  
Machining Performance ◽  
Negative Effects ◽  
Minimum Quantity

Minimum quantity lubrication (MQL) is currently a widely used lubricating technique during machining, in which minimum amount of lubricant in the form of mist is delivered to the machining interface, thus helps to reduce the negative effects caused to the environment and human health. Further, to enhance the productivity of machining process specifically for hard-to-cut materials, nano cutting fluid (suitably mixed nano materials with conventional cutting fluid) is used as an alternative method to conventional lubrication (wet) in MQL. In the current paper, h-BN nano cutting fluid was formulated with 0.1% vol. concentration of h-BN in conventional cutting fluid for NF-MQL technique and its tribological effects on machining performance of Inconel 625 were compared with other lubricating conditions (dry, wet, MQL conventional). The tribological effects were analyzed in terms of tool wear analysis, chip morphology along with statistical analysis for surface roughness and cutting forces. The optimal input machining parameters for experiments were defined by the use of Taguchi and Grey relational based multi response optimization technique. The tribological effects of h-BN NF-MQL shows that it is a viable and sustainable option for improving the machining performance of hard- to- cut material like Inconel 625

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