Micromilling in Minimum Quantity Lubrication

Kajaria, Saurabh; Chittipolu, Sujeev; Adera, Solomon; Hung, Wayne

doi:10.1080/10910344.2012.730848

Cited by 26 publications

(21 citation statements)

References 20 publications

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“…The use of the MQL system presented prominent efficiency regarding burr formation. It occurs because the use of MQL produces a minimum burr due to the absence of build-up edge or a thermochemical reaction, when compared to flood and dry machining [46]. However, it should be noted that, in the micro-milling of Inconel 718, dry and MQL conditions presented no significant difference as to burr formation [48].…”

Section: Discussionmentioning

confidence: 95%

“…According to Kajaria et al. [46], regarding the micro-droplet, only adhesion and centrifugal force are considered, neglecting the gravity effect and aerodynamic drag. If adhesion force is greater than centrifugal force, the micro-droplet adheres and spreads on the tool surface; otherwise, the micro-droplet separates from the tool surface due to a higher centrifugal force.…”

Section: Discussionmentioning

confidence: 99%

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Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

Lauro

Brandão

Filho

et al. 2018

Int J Adv Manuf Technol

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The sustainability of a process is the objective of modern industries aiming to reduce waste in production, since consumers require high quality and efficiency with fair price. Thus, a good understanding of the process should be its starting point. The manufacture of dental implants is an example in which waste reduction is important for the reduction of prices due to the demand for great quality and accuracy. This study observed the behaviour of sustainable micro-cutting applied to the Ti-6Al-7Nb titanium alloy, considering the ploughing effect on minimum quantity lubrication (MQL) and high-speed machining (HSM) conditions. When compared with dry condition and low-speed cutting in orthogonal micro-cutting, the use of HSM in dry cutting was more efficient than using MQL. The dry condition presented lower surface roughness, whilst the cooled/lubricated condition presented lower burr formation.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

Lauro

Brandão

Filho

et al. 2018

Int J Adv Manuf Technol

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“…Application of conventional cutting fluid in milling process may not effectively control the heat generation. Micro milling of 316 L stainless steel under MQL was investigated by Kajaria et al (2012). The results showed that machining with LN 2 lowers cutting zone temperature, tool flank wear, surface roughness and cutting forces as compared with dry and wet machining.…”

Section: Milling Under Mql Conditionsmentioning

confidence: 99%

A review of near dry machining/minimum quantity lubrication machining of difficult to machine alloys

Singh

Dureja

et al. 2016

IJMMM

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Cutting fluids cool and lubricate the cutting tool and machined area, wash away chips thereby increasing material removal rate, lengthen tool life and improve dimensional accuracy. However, strict environmental regulations prohibit liberal use of conventional coolants due to environment, health hazards and economic reasons. But, dry cutting although environmental friendly is not feasible under all machining applications. Some materials when machined dry; tend to stick to tool face, spoiling tool and machined surface finish, can be efficiently machined under near dry machining (NDM) or under minimum quantity lubrication (MQL) conditions; in which cooling and lubrication in the cutting zone can be achieved by a tiny amount of cutting oil applied to tool tip T. Singh et al.with compressed air in mist form, thereby addressing the negative impact of flooded coolant machining. This paper, attempts to critically review research progress and current state of affairs in machining of difficult to machine alloys under NDM/MQL. He is a life member of ISTE. His areas of interest are hard turning, tool wear, condition-based maintenance and monitoring apart from statistical modelling and optimisation, machining of aerospace alloys under minimum quantity lubrication machining/near dry machining, green manufacturing, etc.

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“…Some major advantages of MQL include improved environment, better surface finish, increased tool life, reduced wear and damage at tool tips; reduce health hazards, and overall low costs in various micromachining processes. Machining processes using MQL have been studied for all conventional meso or micro machining processes like micro and meso scale drilling [2], [3] micro milling [4], [5], turning [6], [7] and grinding [8]. Implementing MQL in machining process helps to increase the tool life and produce better surface finish.…”

Section: Introductionmentioning

confidence: 99%

“…For example, [9] studied the micro-milling using MQL with varying the cutting parameters and analyzed the tool performance and machined surface condition. The tool performance was analyzed by [5] and it showed that MQL increased the tool life by 100 times compared to dry machining. MQL Assisted Meso-scale milling has been studied by [10] and it was shown how that the use of compressed chilly air and nanofluid MQL is effective for improving surface finish and reducing machining force.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Minimum Quantity Lubrication in Meso-scale Milling with Varying Tool Diameter

Yusof

Harun

Bahar

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Minimum quantity lubrication (MQL) is a method that uses a very small amount of liquid to reduce friction between cutting tool and work piece during machining. The implementation of MQL machining has become a viable alternative to flood cooling machining and dry machining. The overall performance has been evaluated during meso-scale milling of mild steel using different diameter milling cutters. Experiments have been conducted under two different lubrication condition: dry and MQL with variable cutting parameters. The tool wear and its surface roughness, machined surfaces microstructure and surface roughness were observed for both conditions. It was found from the results that MQL produced better results compared to dry machining. The 0.5 mm tool has been selected as the most optimum tool diameter to be used with the lowest surface roughness as well as the least flank wear generation. For the workpiece, it was observed that the cutting temperature possesses crucial effect on the microstructure and the surface roughness of the machined surface and bigger diameter tool actually resulted in higher surface roughness. The poor conductivity of the cutting tool may be one of reasons behind. IntroductionMinimum quantity lubrication (MQL) has progressively emerged into the area of metal machining and, has already been established as a viable alternative to dry and flood cooling machining. The amount that should be applied in MQL is subjective and depends on the material, process and tools. As a general rule of thumb, MQL uses 5 to 80 ml/hour (0.2 to 2.5 oz./hour) on the tools which has less than 40 mm diameter [1]. Some major advantages of MQL include improved environment, better surface finish, increased tool life, reduced wear and damage at tool tips; reduce health hazards, and overall low costs in various micromachining processes. Machining processes using MQL have been studied for all conventional meso or micro machining processes like micro and meso scale drilling [8]. Implementing MQL in machining process helps to increase the tool life and produce better surface finish. It is also the best remedy for promoting eco-friendly industry due to reduction in waste. In this paper, the performance of mesomilling under MQL has been studied and compared with the same machining experience under dry condition. There have been numerous studies on micro or meso milling using MQL and dry machining. For example, [9] studied the micro-milling using MQL with varying the cutting parameters and analyzed the tool performance and machined surface condition. The tool performance was analyzed by [5] and it showed that MQL increased the tool life by 100 times compared to dry machining. MQL Assisted Meso-scale milling has been studied by [10] and it was shown how that the use of compressed chilly air and nanofluid MQL is effective for improving surface finish and reducing

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Micromilling in Minimum Quantity Lubrication

Cited by 26 publications

References 20 publications

Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

Behaviour of a biocompatible titanium alloy during orthogonal micro-cutting employing green machining techniques

A review of near dry machining/minimum quantity lubrication machining of difficult to machine alloys

Experimental Investigation of Minimum Quantity Lubrication in Meso-scale Milling with Varying Tool Diameter

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