Abrasive waterjet cutting of cladded material: kerf taper and MRR analysis

Ishfaq, Kashif; Mufti, Nadeem Ahmad; Ahmed, Naveed; Pervaiz, Salman

doi:10.1080/10426914.2018.1544710

Cited by 42 publications

(32 citation statements)

References 34 publications

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“…AWJM cutting operation takes place through an erosion process where abrasives are suspended in a high velocity of water jet stream, resulting in an increasing acceleration of the abrasive particles, where their kinetic energy impingement and the collisions of these abrasive particles transpire the material removal towards the target material [5]. The kinetic energy of the abrasive particles is radically high at rst impact, where it moderately decreases during the machining application process [9]. The experimental data presented in Figure 5 demonstrates that the narrowing of top and bottom kerf widths depends directly on the decreasing amount of abrasive particles during the machining process.…”

Section: Kerf Top Width and Bottom Resultsmentioning

confidence: 99%

“…Eq.1 was utilised to calculate the kerf taper angle following abrasive waterjet cutting of AISI 304L [28]. Kerfs geometries scheme is illustrated in Figure 3 [9].…”

Section: Output Parametersmentioning

confidence: 99%

“…The results indicated that the ratio of kerf taper increased at a higher level of standoff distance. Ishfaq et al [9] have distinguished that traverse speed and abrasive mass ow rate are the signi cant parameters for material removal rate, where traverse speed has been established as the most impacting factor on AWJM cutting of stainless-clad steel workpieces. Within the study, the feed rate was revealed to be the most signi cant parameter in controlling the responses on surface roughness and kerf taper angle in abrasive waterjet cutting of AISI 1018 with 5mm thickness [10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impacts of traverse speed and material thickness in abrasive waterjet contour cutting of Austenitic stainless steel AISI 304L

Llanto

Tolouei‐Rad

Vafadar

et al. 2021

Preprint

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Austenitic stainless steel 304L (AISI304L), of varied thickness, is widely used in the fabrication industry and in many cases, it requires contour machining for achieving intricate profiles. Abrasive water jet machine is a proficient alternative for machining difficult-to-cut, reflective, conductive, and heat-sensitive materials such as austenitic stainless steel with complex geometries. However, due to differences in machining responses for varied material conditions, the abrasive waterjet machine experiences challenges such as kerf geometric inaccuracy and low material removal rate. In this study, an abrasive waterjet machine is employed to perform contour cutting of different profiles to investigate the impacts of traverse speed and material thickness in achieving a lower kerf taper angle and higher material removal rate. Experimental results show that all profiles encountered a similar trend of obtaining higher kerf taper angle and material removal rate as traverse speed increased. Analysis of variance revealed that material thickness denotes a more significant impact to kerf taper angle and material removal rate with a contribution within the range of 69%-91% and 62-69% respectively; whereas traverse speed indicates the least contributing factor within the range of 5%-18% in kerf taper angle and 27%-36% for material removal rate.

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Section: Kerf Top Width and Bottom Resultsmentioning

confidence: 99%

“…Eq.1 was utilised to calculate the kerf taper angle following abrasive waterjet cutting of AISI 304L [28]. Kerfs geometries scheme is illustrated in Figure 3 [9].…”

Section: Output Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of traverse speed and material thickness in abrasive waterjet contour cutting of Austenitic stainless steel AISI 304L

Llanto

Tolouei‐Rad

Vafadar

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It is pertinent to mention that no work has been found, in open available literature, discussing the cutting of clad composite through abrasive water jet cutting. However, a part of the present study discussing the kerf taper and material removal issues during the AWJC of clad composite can has been recently published [12]. This in turns justifies the novelty of the work as the cutting performance of AWJC has not been reported for the machining of clad composite.…”

Section: Introductionmentioning

confidence: 83%

Abrasive Waterjet Cutting of Clad Composite for Achieving Minimal Cut Quality Difference Between Constituent Layers

Ishfaq

Ahmad

Mufti

et al. 2019

Metals

Self Cite

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Clad composites have emerged as a suitable choice to augment the industrial needs due to having a combination of different properties. The accurate cutting is challenging due to the heterogeneous nature of the composite. Conventionally, thermal cutting (plasma/gas) techniques are commonly employed which provide poor cut quality, deeper heat affected zones and demand additional finishing operations. Therefore, this research evaluates the potential of abrasive water jet cutting (AWJC) as a proficient substitute for the cutting of stainless-clad-steel composite in terms of surface quality. However, it is difficult to produce a similar level of surface finish at both the layers because the constituent layers have different mechanical properties. The effect and significance of four important AWJC parameters on cut quality are examined through statistical analyses. Optical and scanning electron microscopic analyses are further provided as evidence of the reported results. Optimal settings are also developed using a weighted signal-to-noise ratio technique which can provide minimal roughness at each layer. Moreover, using the optimal settings, a similar level of surface finish has been achieved for both the layers with a difference of just 0.03 µm between the constituent layers.

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“…With the development of the modern industry, higher requirements for waterjet technology were put forward. As a result, new types of water jets have emerged in succession, such as cavitating waterjet (Soyama, 2013), abrasive waterjet (Ishfaq et al 2018), and self-resonating waterjet (Liu et al 2018).…”

Section: Introductionmentioning

confidence: 99%

The Characteristics of Self-Resonating Jet Issuing from the Helmholtz Nozzle Combined with a Venturi Tube Structure

Miao

Kang

et al. 2020

JAFM

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Self-resonating waterjet is a new type of waterjet technology that has been widely used for many practical applications. In order to further improve the performance of self-resonating waterjet, the Helmholtz nozzle was improved by replacing the upper part of a traditional contract structure with a venture tube one. This composite nozzle of a venturi tube structure and a Helmholtz resonator was proposed based on the working mechanism of self-resonating waterjet nozzles and the instability of cavitation flow in venturi tubes. Furthermore, the results were also compared with those generated by a conventional Helmholtz nozzle under the same conditions. The frequency of the pressure pulsation in the oscillating cavity and at the outlet was obtained and analyzed by the classical Fast Fourier transform (FFT) method. The results showed that the main frequency of the pressure oscillation rises to 2362.78Hz, and the peak and average values of the pressure are increased by 45% and 12.5% respectively at the outlet of the composite nozzle. In the oscillating cavity of composite nozzle, the pressure oscillations in the central region have higher frequencies and amplitudes, while near the wall are reversed.

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Abrasive waterjet cutting of cladded material: kerf taper and MRR analysis

Cited by 42 publications

References 34 publications

Impacts of traverse speed and material thickness in abrasive waterjet contour cutting of Austenitic stainless steel AISI 304L

Impacts of traverse speed and material thickness in abrasive waterjet contour cutting of Austenitic stainless steel AISI 304L

Abrasive Waterjet Cutting of Clad Composite for Achieving Minimal Cut Quality Difference Between Constituent Layers

The Characteristics of Self-Resonating Jet Issuing from the Helmholtz Nozzle Combined with a Venturi Tube Structure

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