Dry machining: Machining of the future

Sreejith, P. S.; Ngoi, B. K. A.

doi:10.1016/s0924-0136(00)00445-3

Cited by 598 publications

(282 citation statements)

References 10 publications

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“…Eliminating coolants in metal cutting processes reduces costs and ecological burdens and simplifies logistics relating to metal and coolant recovery [7]. Reducing attachment of metal debris to the tool can result in improvements in topography of the cut surfaces.…”

Section: Introductionmentioning

confidence: 99%

Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatings

Zolgharni

Jones

Bulpett

et al. 2008

Diamond and Related Materials

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We demonstrate enhancements of performance and energy efficiency of cutting tools by deposition of diamond-like carbon (DLC) coatings on machine parts. DLC was deposited on steel drill bits, using plasma enhanced chemical vapour deposition (PECVD) with the acetylene precursor diluted with argon, to produce a surface with low friction and low wear rate. Drill bit performance in dry drilling of aluminium was quantified by analysis of power consumption and swarf flow. Optimised deposition conditions produced drill bits with greatly enhanced performance over uncoated drill bits, showing a 25% reduction in swarf clogging, a 36% reduction in power consumption and a greater than five-fold increase in lifetime. Surface analysis with scanning electron microscopy shows that DLC coated drills exhibit much lower aluminium build up on the trailing shank of the drill, enhancing the anti-adhering properties of the drill and reducing heat generation during operation, resulting in the observed improvements in efficiency. Variation of drilling efficiency with argon dilution of precursor is related to changes in the microstructure of the DLC coating.

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Section: Introductionmentioning

confidence: 99%

Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatings

Zolgharni

Jones

Bulpett

et al. 2008

Diamond and Related Materials

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“…Cutting tests were carried out on a CNC SOMAB model 500 lathe machine (24kW power) under dry cutting conditions. Machining was performed dry because it has been considered as the machining of the future due to concern regarding the safety of the environment [7]. Because of its wide application, the 100C6 steel has been selected as the workpiece material in this study.…”

Section: Turning Process Parametersmentioning

confidence: 99%

Effects of cutting parameters during turning 100C6 steel

Serra¹,

Chibane

2010

EPJ Web of Conferences

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Abstract. The objective of the paper is to evaluate the effects of cutting parameters in terms of cutting speed, depth of cut and feed rate on the influence of the surface roughness, consumed power, cutting time and tool vibrations during turning process. The material chosen in this case was 100C6 steel in dry conditions. The effects of the selected process parameters have been investigated using full factorial design of experiments (3 3 ) and the multiple linear regression (MLR). Thus, first-order empirical models were established. Analysis of variance (ANOVA) was employed to check the validity of the developed models within the limits of the factors that were being investigated and to test the significance of the above parameters. Results indicate that the feed rate is the only significant factor affecting the surface roughness. The cutting speed and feed rate are the most influential factors on cutting time. Estimated tool vibrations are functions of cutting speed, feed rate and depth of cut in decreasing order. Finally, the models obtained can be used for determination of optimal settings of cuttings parameters and this methodology should help us to obtain the best process parameters for dry turning of 100C6 steel.

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“…Cutting fluids are widely used during machining to take away the heat generated; getting better tool life, for superior surface finish and dimensional accuracies; to reduce the possibilities of built-up edge development [2]. The selection and use of proper cutting fluids is the key for the same.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Process Parameters During End Milling and Prediction of Work Piece Temperature Rise

Bhirud¹,

Gawande²

2017

Archive of Mechanical Engineering

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During the machining processes, heat gets generated as a result of plastic deformation of metal and friction along the tool-chip and tool-work piece interface. In materials having high thermal conductivity, like aluminium alloys, large amount of this heat is absorbed by the work piece. This results in the rise in the temperature of the work piece, which may lead to dimensional inaccuracies, surface damage and deformation. So, it is needed to control rise in the temperature of the work piece. This paper focuses on the measurement, analysis and prediction of work piece temperature rise during the dry end milling operation of Al 6063. The control factors used for experimentation were number of flutes, spindle speed, depth of cut and feed rate. The Taguchi method was employed for the planning of experimentation and L 18 orthogonal array was selected. The temperature rise of the work piece was measured with the help of K-type thermocouple embedded in the work piece. Signal to noise (S/N) ratio analysis was carried out using the lower-the-better quality characteristics. Depth of cut was identified as the most significant factor affecting the work piece temperature rise, followed by spindle speed. Analysis of variance (ANOVA) was employed to find out the significant parameters affecting the work piece temperature rise. ANOVA results were found to be in line with the S/N ratio analysis. Regression analysis was used for developing empirical equation of temperature rise. The temperature rise of the work piece was calculated using the regression equation and was found to be in good agreement with the measured values. Finally, confirmation tests were carried out to verify the results obtained. From the confirmation test it was found that the Taguchi method is an effective method to determine optimised parameters for minimization of work piece temperature.

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Dry machining: Machining of the future

Cited by 598 publications

References 10 publications

Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatings

Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatings

Effects of cutting parameters during turning 100C6 steel

Optimization of Process Parameters During End Milling and Prediction of Work Piece Temperature Rise

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