Turning of Brasses Using Minimum Quantity of Lubricant (MQL) and Flooded Lubricant Conditions

Davim, J. Paulo; Sreejith, P. S.; Silva, João Baptista Pereira

doi:10.1080/10426910601015881

Cited by 134 publications

(55 citation statements)

References 12 publications

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“…Surface roughness obtained by MQL is found to lie between dry cutting and flooded condition (Sreejith, 2008). Davim et al (2007) conducted a study on turning of brass with MQL to study the effect of the quantity of cutting fluid. They compared the cutting power, specific cutting force, surface roughness and chip form with MQL at Q =50, 100, 200 ml/h and with flood cooling at Q =2000 ml/h.…”

Section: Mql Assisted Turning Of Aluminum Alloysmentioning

confidence: 99%

Minimum Quantity Lubrication Assisted Turning - An Overview

Upadhyay¹,

Jain²,

Mehta³

2012

Daaam International Scientific Book 2012

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Section: Mql Assisted Turning Of Aluminum Alloysmentioning

confidence: 99%

Minimum Quantity Lubrication Assisted Turning - An Overview

Upadhyay¹,

Jain²,

Mehta³

2012

Daaam International Scientific Book 2012

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“…Research on dry machining was mainly concerned with the development of appropriate tools and coatings (Klocke & Eisenblatter, 1997;Kobayashi, Ohgoe, Ozeki, Sato, Sumiya, Hirakuri, & Aoki, 2005;Machado & Wallbank, 1997;Nouari, List, Girot, & Coupard, 2003;Reddy & Rao, 2006;Su, Liu, Su, Yao, Kao, & Cheng, 2006). Although dry machining is possible in some situations, there are still many issues regarding lubricity, tool life, thermal damage to the workpiece and others (Davim, Sreejith, & Silva, 2007;Itoigawa, Childs, Nakamura, & Belluco, 2006;Sun, Wong, Rahman, Wang, Neo, Tan, & Onozuka, 2006). Therefore the MQL was proposed.…”

Section: Introductionmentioning

confidence: 99%

Minimum Quantity Lubricant Flow Analysis in End Milling Processes: A Computational Fluid Dynamics Approach

Najiha

Rahman²,

Kamal³

et al. 2012

J MECH ENG SCI

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This paper presents a two-dimensional steady-state incompressible analysis for the minimum quantity of lubricant flow in milling operations using a computational fluid dynamics (CFD) approach. The analysis of flow and heat transfer in a four-teeth milling cutter operation was undertaken. The domain of the rotating cutter along with the spray nozzle is defined. Operating cutting and boundary conditions are taken from the literature. A steady-state, pressure-based, planar analysis was performed with a viscous, realizable k-ε model. A mixture of oils and air were sprayed on the tool, which is considered to be rotating and is at a temperature near the melting temperature of the workpiece. Flow fields are obtained from the study. The vector plot of the flow field shows that the flow is not evenly distributed over the cutter surface, as well as the uneven distribution of the lubricant in the direction of the cutter rotation. It can be seen that the cutting fluid has not completely penetrated the tool edges. The turbulence created by the cutter rotation in the proximity of the tool throws oil drops out of the cutting zone. The nozzle position in relation to the feed direction is very important in order to obtain the optimum effect of the MQL flow.

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“…So, conventionally machining of these sticky material is carried out under flooded coolant/ wet conditions, which involves higher manufacturing cost on one hand and poses serious environmental and health hazards on the other hand. 1,2 In an attempt to economize the production cost in severe turning applications without switching over to costlier Ceramic and CBN tools, researchers are exploring the improvement in wear resistance of coated carbide tools during machining of sticky materials under MQL conditions, thereby lowering the high cutting forces as encountered in dry turning and negative impacts of flooded machining. Minimum quantity lubrication refers to the use of tiny amount of non-toxic biodegradable oil sprayed to the cutting zone by compressed air (50-500 mL/h, compared to 30,000-60,000 mL/hour in flooded machining) minimizing the friction, temperature and cutting forces generated during machining.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of coated carbide tool in machining of stainless steel (AISI 202) under minimum quantity lubrication (MQL)

Dureja

Singh

et al. 2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

101

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The benefits of cutting fluids in machining are well known, but their use is accompanied by health and environment hazards. Moreover, strict environmental regulations make the manufacturers to switch over to dry turning, which is not feasible during machining of sticky material like stainless steel and Inconel etc. Therefore, the use of minimal quantities of lubricant (MQL) can be regarded as an alternative solution and a step towards green machining. In the present investigation an attempt has been made to explore the potential of MQL turning of stainless steel with coated carbide cutting tool. Turning under MQL conditions has shown superior results (in terms of flank wear and machined surface roughness) over wet and dry turning. Signal to noise (S/N) ratio as per Taguchi design revealed speed and MQL as significant parameters for minimizing flank wear and surface roughness, whereas feed can be set within range. The optimum combination of parameters are cutting speed (58 m/min), feed rate (0.06 mm/rev.) and MQL flow rate (100 mL/h) for flank wear and cutting speed (23 m/min), feed rate (0.07 mm/rev.) and MQL flow rate (150 mL/h) for surface roughness. Taguchi optimized conditions were validated through multiple response optimization using desirability function.

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Turning of Brasses Using Minimum Quantity of Lubricant (MQL) and Flooded Lubricant Conditions

Cited by 134 publications

References 12 publications

Minimum Quantity Lubrication Assisted Turning - An Overview

Minimum Quantity Lubrication Assisted Turning - An Overview

Minimum Quantity Lubricant Flow Analysis in End Milling Processes: A Computational Fluid Dynamics Approach

Performance evaluation of coated carbide tool in machining of stainless steel (AISI 202) under minimum quantity lubrication (MQL)

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