Characterization and optimization of Abrasive Water Jet Machining parameters of aluminium/tungsten carbide composites

Kumar, K. Ravi; Sreebalaji, V.S.; Pridhar, T.

doi:10.1016/j.measurement.2017.11.059

Cited by 84 publications

(19 citation statements)

References 29 publications

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“…As these two parameters vary, most of the dispersion of results occurs, as shown in the slope of the graphs relating these parameters. It should be noted that the influence of WP and TFR on T formation is in good agreement with what has been previously determined by different authors in various materials [16][17][18]. The AMFR parameter has a minor influence compared to the other parameters.…”

Section: Taper Analysissupporting

confidence: 91%

“…The AMFR analysis reflects that the importance of this parameter is higher in this area than in the previous ones, reaching an F-value of 0.81 compared to 0.24 and 0.21 previously. This change of trend is in good agreement with what was found in [16,17] and is mainly due to the loss of penetration capacity of the jet as the material thickness increases, favoring the formation of RCR. Figure 14 shows the contour graph for the variable T as a function of the variables that show significance.…”

Section: Anovasupporting

confidence: 90%

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Characterization and Defect Analysis of Machined Regions in Al-SiC Metal Matrix Composites Using an Abrasive Water Jet Machining Process

et al. 2020

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Metal matrix composite (MMC) materials are increasingly used in industrial sectors such as energy, structural, aerospace, and automotive. This is due to the improvement of properties by the addition of reinforcements. Thus, it is possible to obtain properties of higher strength, better rigidity, controlled thermal expansion, and elevated wear resistance. However, due to the extreme hardness achieved during their manufacture, these composites pose a challenge to the conventional machining industry due to the rapid deterioration experienced by cutting tools. This article therefore proposes the use of an unconventional machining method that is becoming increasingly widely used: abrasive water jet cutting. This process is characterized by high production rates, absence of wear, and environmental friendliness, among other advantages. Experimental tests were carried out in order to analyze results that minimize the formation of defects in the machining of metal matrix composite consisting of aluminium matrix with silicon carbide (Al-SiC MMC). To this end, results were analyzed using Scanning Optical and Electron Microscope (SOM/SEM) techniques, the taper angle was calculated, and areas with different surface quality were detected by measuring the roughness.

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Section: Taper Analysissupporting

confidence: 91%

Section: Anovasupporting

confidence: 90%

Characterization and Defect Analysis of Machined Regions in Al-SiC Metal Matrix Composites Using an Abrasive Water Jet Machining Process

et al. 2020

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“…However, the AWJM process shows its own limitations that lead to the appearance of specific defects during the cutting process (Figure 1). The most common defects in the process are the kerf taper, the Erosion Affected Zone (EAZ) and the formation of three possible different roughness zones along the machined surface [22]: Initial Damage Region (IDR). The area where the water jet hits on the material producing EAZ.…”

Section: Introductionmentioning

confidence: 99%

Influence of Abrasive Waterjet Parameters on the Cutting and Drilling of CFRP/UNS A97075 and UNS A97075/CFRP Stacks

et al. 2018

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The incorporation of plastic matrix composite materials into structural elements of the aeronautical industry requires contour machining and drilling processes along with metallic materials prior to final assembly operations. These operations are usually performed using conventional techniques, but they present problems derived from the nature of each material that avoid implementing One Shot Drilling strategies that work separately. In this work, the study focuses on the evaluation of the feasibility of Abrasive Waterjet Machining (AWJM) as a substitute for conventional drilling for stacks formed of Carbon Fiber Reinforced Plastic (CFRP) and aluminum alloy UNS A97050 through the study of the influence of abrasive mass flow rate, traverse feed rate and water pressure in straight cuts and drills. For the evaluation of the straight cuts, Stereoscopic Optical Microscopy (SOM) and Scanning Electron Microscopy (SEM) techniques were used. In addition, the kerf taper through the proposal of a new method and the surface quality in different cutting regions were evaluated. For the study of holes, the macrogeometric deviations of roundness, cylindricity and straightness were evaluated. Thus, this experimental procedure reveals the conditions that minimize deviations, defects, and damage in straight cuts and holes obtained by AWJM.

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“…The second factor was percentage of the reinforcement, and the least affecting was STD. The SR greatly influenced by the amount of the tungsten carbide inclusion [21]. Gnanavelbabu et al machined hybrid aluminium composites (AA6061-B 4 C-hBN) using AWJM.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations on abrasive water jet machining of nickel-based superalloy

Veerappan¹,

Ravichandran²

2019

J Braz. Soc. Mech. Sci. Eng.

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Waspaloy is often used in aviation combustion chamber at extreme environments. Waspaloy is also a nickel-based superalloy with exceptional strength properties at a temperature of 980 °C. In this experimental investigation, waspaloy is used to analyse the kerf angle (KA), surface roughness (SR) and material removal rate (MRR) during abrasive water jet machining. The effect of various parameters such as traverse speed, abrasive flow rate, water pressure and stand-off distance on KA, MRR and SR was discussed. The striation formation was analysed for different set of process parameters. The striations were also analysed using atomic force microscopy. An attempt was done to relate the jet impinging angle and nature of striation formation. It was found that the increase in declination angle decreases the formation of striation during water jet process of waspaloy.

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Characterization and optimization of Abrasive Water Jet Machining parameters of aluminium/tungsten carbide composites

Cited by 84 publications

References 29 publications

Characterization and Defect Analysis of Machined Regions in Al-SiC Metal Matrix Composites Using an Abrasive Water Jet Machining Process

Characterization and Defect Analysis of Machined Regions in Al-SiC Metal Matrix Composites Using an Abrasive Water Jet Machining Process

Influence of Abrasive Waterjet Parameters on the Cutting and Drilling of CFRP/UNS A97075 and UNS A97075/CFRP Stacks

Experimental investigations on abrasive water jet machining of nickel-based superalloy

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