Investigations on hard turning with minimal cutting fluid application (HTMF) and its comparison with dry and wet turning

Varadarajan, A.; Philip, Philge; Ramamoorthy, B.

doi:10.1016/s0890-6955(01)00119-5

Cited by 224 publications

(120 citation statements)

References 8 publications

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“…In MQL, cooling occurs due to convective and evaporative mode of heat transfer and thus is more effective than conventional wet cooling in which cooling occurs due to convective heat transfer only. In addition, cutting fluid droplets by virtue of their high velocity penetrates the blanket of vapor formed and provides more effective heat transfer than wet cooling (Varadarajan et al, 2002). However, according to Astakhov, 2008 aerosols do not acts as lubricants or boundary lubricants as they do not have access to the tool-chip and tool-work-piece interfaces due to too low penetration ability.…”

Section: Minimum Quantity Lubricationmentioning

confidence: 99%

“…MQL has been successfully applied in various machining operations such as turning (Dhar et al, 2006a), drilling (Kelly and Cotterell, 2002), milling (Kishawy et al, 2005) and grinding (Sadeghi et al, 2009). Applications of MQL has resulted in better tool life, improved surface finish, better chip forms and reduced cutting forces (Varadarajan et al, 2002;Khan et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Minimum Quantity Lubrication Assisted Turning - An Overview

Upadhyay¹,

Jain²,

Mehta³

2012

Daaam International Scientific Book 2012

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Section: Minimum Quantity Lubricationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Minimum Quantity Lubrication Assisted Turning - An Overview

Upadhyay¹,

Jain²,

Mehta³

2012

Daaam International Scientific Book 2012

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“…The pressure at the Fluid applicator was kept at 100 MPa, the rate of fluid application at 2 ml/min, the frequency of pulsing at 500 pulses/min. 23 Three different inserts were used in the experimentation and each experiment lasted for 2 minutes. Amplitude of tool vibration was measured by using a piezoelectric vibrometer pickup mounted at the top of the tool holder.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Cutting Parameters on Tool Vibration During Magnetorheological Fluid Controlled Turning Bar

Paul¹,

Sunil²,

Varadarajan³

2017

IJAV

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Tool vibration is a dynamic instability of the cutting process, which is a result of the interaction between the metal cutting process and the dynamics of a machine tool. The presence of such tool vibration leads to a poor surface finish, which results in cutting tool damage and the production of irritating and unacceptable noise. In order to reduce tool vibration, a magnetorheological fluid damper was developed that will respond to an applied field with a dramatic change in their rheological behaviour. The essential characteristic of these fluids is their ability to reversibly change from a free-flowing, linear, viscous liquid to a semi-solid with a controllable yield strength within milliseconds when exposed to a magnetic field. The present investigation aims to analyse the behaviour of a tool holder when attached with a magnetorheological damper during the turning operation using analytical and experimental methods. A Mathematical model was developed and the amplitudes of the tool vibration and chip thickness were calculated. Cutting experiments were conducted to study the effect of the magnetorheological damper on tool vibration, chip thickness etc. and to validate the results of the proposed mathematical model. From the results, it was observed that the use of the magnetorheological damper reduces tool vibration effectively and its results matches the results obtained from the numerical method.

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“…Varadarajan, Philip &Ramamoorthy [10]performed turning trials using AISI 4340 steel as work material and reported lowest temperature using MQL in comparison with dry turning and flooding, under both low and high cutting speeds. The results are explained by the fact that cutting fluid droplets are capable of reaching the interface, making heat transfer more effective.…”

Section: Introductionmentioning

confidence: 99%