Effect of Pressure, Feed Rate, and Abrasive Mass Flow Rate on Water Jet Cutting Efficiency When Cutting Recombinant Bamboo

Water jet cutting has been an extremely helpful tool that creates flawless parts with tolerances up to 0.1 mm. During the cutting process, it is important to note that each step must be optimized to create the best finish or maintain the correct tolerance zone. These steps are composed of abrasive mass flow rate, traverse speed, and standoff distance. In order for these optimization techniques to be followed a strict set of rules must be followed to ensure consistent progression. Programs such as MATLAB can be utilized to reduce human error in the calculations. MATLAB files can then be saved to use with other materials and thickness combinations.

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Effect of Process Parameters on Depth of Penetration & Surface Roughness in Abrasive Waterjet Cutting of Copper

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.895.301 ◽

2019 ◽

Vol 895 ◽

pp. 301-306

Author(s):

Keshav Kashyap ◽

S. Srinivas

Keyword(s):

Surface Roughness ◽

Mass Flow Rate ◽

Mass Flow ◽

Process Parameters ◽

Flow Rate ◽

Traverse Speed ◽

High Water ◽

Water Jet ◽

Abrasive Waterjet ◽

Depth Of Penetration

This study evaluates the effect of process parameters on depth of penetration and surface roughness in abrasive waterjet (AWJ) cutting of copper. Full factorial experiments are carried out on trapezoidal blocks for each of the three abrasive particle sizes used. Experimental parameters - abrasive mass flow rate, water jet pressure and traverse speed are varied at three levels. Main effects and contributions of process parameters to depth of penetration and surface roughness is calculated. From the data, it is observed that, high abrasive mass flow rate, high water jet pressure and low traverse speed resulted in higher depth of penetration and a high abrasive mass flow rate, high water jet pressure and low traverse speed resulted in lesser Ra value. Using experimental data a statistical model for predicting depth of penetration & surface roughness is developed. Error between experimental and statistical values are compared to validate the statistical model. The maximum DOP of 49.32mm was observed at AMFR=405.4 g/min, P=300 MPa, TS=60 mm/min, MS=60 Mesh and minimum DOP of 4.27mm was observed at AMFR=200 g/min, P=100 MPa, TS=90 mm/min, MS=80 Mesh.

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Possibilities of homogenization of the kerf width created by the technology of abrasive water-jet cutting

Journal of Forest Science ◽

10.17221/61/2011-jfs ◽

2011 ◽

Vol 57 (No. 12) ◽

pp. 574-579 ◽

Cited By ~ 1

Author(s):

R. Kminiak ◽

Š. Barcík

Keyword(s):

Mass Flow ◽

Feed Rate ◽

Solid Wood ◽

Water Jet ◽

Kerf Width ◽

Abrasive Water Jet ◽

Water Jet Cutting ◽

Abrasive Water Jet Cutting ◽

Introductory Part ◽

Mass Flows

The paper deals with the possibilities of homogenization of the kerf width by proper choice of the respective feed rate and abrasive mass flow for particular models of cutting. The introductory part is devoted to reasons for the kerf width variability in dependence on the models of cutting, as well as to the methods of determining the kerf width in cutting of solid wood by abrasive water jet. In the conclusion are presented the results concerning the development of kerf width in the range of commonly used feed rates and abrasive mass flows.

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Investigations on surface roughness and tribology of miniature brass gears manufactured by abrasive water jet machining

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406217747913 ◽

2017 ◽

Vol 232 (22) ◽

pp. 4193-4202 ◽

Cited By ~ 12

Author(s):

Thobi Phokane ◽

Kapil Gupta ◽

Munish Kumar Gupta

Keyword(s):

Surface Roughness ◽

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

Optimization Technique ◽

Water Jet ◽

Machining Parameters ◽

Abrasive Water Jet ◽

Abrasive Water Jet Machining ◽

Particle Swarm Optimization Technique

Surface roughness parameters are important indicators for determining the operating performance, tribology behavior, wear and tear characteristics, and service life of engineered parts including gears. This article presents the investigation on surface roughness, and tribology and wear aspects of miniature brass gears manufactured by abrasive water jet machining. Experiments have been conducted based on Taguchi's robust design technique with L9 orthogonal array to machine external spur-type miniature gears of brass having 8.4 mm pitch diameter, 12 teeth, and 5 mm thickness. The effect of three important process parameters namely water jet pressure, abrasive mass flow rate, and stand-off distance on mean roughness depth of miniature gears are analyzed. Surface roughness is found to decrease with the increase in the water jet pressure and abrasive mass flow rate, and increases with the increase in the stand-off distance. Particle swarm optimization technique has been used for parametric optimization to minimize the surface roughness of miniature gears. Confirmation experiment conducted at optimized abrasive water jet machining parameters resulted in superfine surface finish with mean roughness depth value of 4.1 µm superior than the finish obtained by other advanced processes for brass gears. The investigated values of bearing area characteristics, skewness, kurtosis, and friction coefficient confirm the tribological fitness of the miniature brass gear machined at optimum abrasive water jet machining parameters.

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Effect of pressure and mass flow rate on burnout heat fluxes in a water and steam-water mixture flow in tubes

International Journal of Heat and Mass Transfer ◽

10.1016/0017-9310(64)90082-1 ◽

1964 ◽

Vol 7 (2) ◽

pp. 187-190 ◽

Cited By ~ 3

Author(s):

V.E. Doroshchuk ◽

F.P. Lantsman

Keyword(s):

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

Heat Fluxes ◽

Water Mixture ◽

Mixture Flow ◽

Effect Of Pressure

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Effect of Pressure Drop and Air Mass Flow Rate on the Performance of Concentric Coaxial Glass Tube Solar Air Collector: A Theoretical Approach

Arabian Journal for Science and Engineering ◽

10.1007/s13369-017-2992-2 ◽

2017 ◽

Vol 43 (9) ◽

pp. 4549-4559 ◽

Cited By ~ 2

Author(s):

Vishal Dabra ◽

Avadhesh Yadav

Keyword(s):

Pressure Drop ◽

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

Theoretical Approach ◽

Glass Tube ◽

Air Mass ◽

Effect Of Pressure ◽

Solar Air Collector

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Experimental study of delamination and kerf geometry of carbon epoxy composite machined by abrasive water jet

Journal of Composite Materials ◽

10.1177/0021998316688950 ◽

2017 ◽

Vol 51 (24) ◽

pp. 3373-3390 ◽

Cited By ~ 34

Author(s):

Ajit Dhanawade ◽

Shailendra Kumar

Keyword(s):

Mass Flow Rate ◽

Mass Flow ◽

Process Parameters ◽

Flow Rate ◽

Epoxy Composite ◽

Water Jet ◽

Hydraulic Pressure ◽

Abrasive Water Jet ◽

Abrasive Water Jet Machining ◽

Kerf Taper

The present article focuses on mechanism of delamination and kerf geometry in abrasive water jet machining of carbon epoxy composite. In the present study, four process parameters of abrasive water jet machining namely hydraulic pressure, traverse rate, stand-off distance, and abrasive mass flow rate are considered. The experiments are performed on the basis of response surface methodology as a statistical design of experiment approach. Delamination in machined samples is observed by using scanning electron microscope. Analysis of variance is performed in order to investigate the influence of process parameters on delamination, kerf taper ratio, and kerf top width. It is found that delamination decreases with increase in pressure and abrasive mass flow rate and decrease in stand-off distance and traverse rate. Kerf taper ratio decreases with increase in pressure and decrease in traverse rate and stand-off distance. Kerf top width decreases with decrease in stand-off distance and increase in traverse rate. Based on analysis, mathematical models are developed to predict the maximum delamination length, kerf taper ratio, and kerf top width. Further, a multi-response optimization is performed on the basis of desirability function to minimize delamination, kerf taper ratio, and kerf top width.

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