Comparing Cooling and Lubricating Effects of Different Cutting Fluid Applications in Micromilling Process

Document Type : Research Article

Authors

1 mechanic department, manufacturing, Tarbiat Modares University, Tehran, Iran

2 Unit of Manufacturing, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

3 Maintenance Manager, South Pars Gas Complex, Asaluyeh, Iran

Abstract

Micromilling is one of the main manufacturing processes of creating miniaturized parts which are highly demanded in many industries nowadays. Like any other machining processes, cutting fluids are used for cooling and lubricating during micromilling while it can be challenging due to small cutting zone. In this study, the effects of different cooling and lubricating systems such as dry cutting, wet condition and minimum quantity lubrication systems are investigated on such characteristics as surface quality and wear of the micro tool. In case of the minimum quantity lubrication , two methods of singlenozzle and bi-nozzle spraying systems are applied and their effects on such characteristics are compared to each other. Machining tests are carried out using a two-flute micro cutter with diameter of 0.8 mm on a titanium alloy Ti6Al4V. Results show that the minimum quantity lubrication is significantly effective on the both cooling and lubricating whereas wet application has no effect on the cooling. Finally, using minimum quantity lubrication applications results in lower tool wear and better surface finish compared to those of the dry and wet conditions hence the one with two-nozzle is more advantageous in micro end-milling of this alloy.

Keywords

Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 3
June 2020
Pages 605-618

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