Effect of standoff distance on the kerf characteristic during abrasive water jet machining

Mohamad, Wan Noor Fatihah; Kasim, Mohd Shahir; Norazlina, M.Y.; Hafiz, M. S.A.; Izamshah, R.; Mohamed, S.B.

doi:10.1016/j.rineng.2020.100101

Cited by 18 publications

(11 citation statements)

References 3 publications

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“…Table 3 details that previous works have encountered similar customary defects inherent in this machine's application for difficult-to-cut materials, particularly metals [15,62,[76][77][78]. Several studies have shown that AWJ cutting has been broadly applied to metallic materials with varied thicknesses.…”

Section: Abrasive Waterjet Cutting Application Limitations and Challengesmentioning

confidence: 99%

“…Lea of these influential variables will be fundamental towards dev initiatives of quality and efficiency of the entire cutting proce Mohamad et.al. [62] have identified the kerf taper angle as an intrinsic characteristic of AWJ cutting of AISI 1090 mild steel. They determined that variation in the kerf top width wider and kerf bottom geometries resulted in a higher kerf taper angle.…”

Section: Abrasive Waterjet Cutting Process Parameters and Influementioning

confidence: 99%

“…AWJ cutting defects amongst various metallic materials[15,62,76 Miao et al[76] have found quality defects such as c and striation in cutting AISI 304 using abrasive wat are caused by the decreasing energy of the jet.…”

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confidence: 99%

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Recent Progress Trend on Abrasive Waterjet Cutting of Metallic Materials: A Review

et al. 2021

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Abrasive water jet machining has been extensively used for cutting various materials. In particular, it has been applied for difficult-to-cut materials, mostly metals, which are used in various manufacturing processes in the fabrication industry. Due to its vast applications, in-depth comprehension of the systems behind its cutting process is required to determine its effective usage. This paper presents a review of the progress in the recent trends regarding abrasive waterjet cutting application to extend the understanding of the significance of cutting process parameters. This review aims to append a substantial understanding of the recent improvement of abrasive waterjet machine process applications, and its future research and development regarding precise cutting operations in metal fabrication sectors. To date, abrasive waterjet fundamental mechanisms, process parameter improvements and optimization reports have all been highlighted. This review can be a relevant reference for future researchers in investigating the precise machining of metallic materials or characteristic developments in the identification of the significant process parameters for achieving better results in abrasive waterjet cutting operations.

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Section: Abrasive Waterjet Cutting Application Limitations and Challengesmentioning

confidence: 99%

Section: Abrasive Waterjet Cutting Process Parameters and Influementioning

confidence: 99%

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Recent Progress Trend on Abrasive Waterjet Cutting of Metallic Materials: A Review

et al. 2021

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“…Their study postulated that decreasing the energy of the jet is the reason behind these defects. Mohamad et al [8] have investigated the kerf taper angle generated in AWJM cutting of AISI 1090 mild steel. The results indicated that the ratio of kerf taper increased at a higher level of standoff distance.…”

Section: Introductionmentioning

confidence: 99%

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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“…AWJM is widely used as it cuts 10 times faster than conventional machining. It is also a cold cutting process [10]. Electrical discharge machining is used to analyse the material removal rates on unidirectional and multidirectional carbon fibre reinforced plastics (CERPs).…”

Section: Introductionmentioning

confidence: 99%

Abrasive water jet machining of fly ash and metakaolin based geo-polymers

et al. 2020

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In the present study, the abrasive water jet machining (AWJM) of geopolymers prepared from fly ash, metakaolin and sand is discussed. The samples were prepared from sodium promoter, fly ash / metakaolin and sand. The process of activation was made using a 10M sodium hydroxide solution combined with a sodium silicate solution (the ratio of liquid glass - 1:2.5). To produce geopolymers, flakes of technical sodium hydroxide were used and an aqueous solution of sodium silicate (R-145) with a molar module of 2.5 and a density of around 1.45 g/cm3 the tap water. The alkaline solution was prepared by means of pouring the aqueous solution of sodium silicate over the solid sodium hydroxide. The solution was mixed and left until its temperature stablised and the concentrations equalised, which took around 2 hours. The fly ash, sand and alkaline solution were mixed for around 10 minutes using a low-speed mixing machine (in order to obtain a homogeneous paste). The paste was allowed to dry in the shade. The paper investigates the AWJM studies on the prepared geopolymer specimens with varyied input parameters such as standoff distance (1.2 and 3 mm), water pressure (120, 140 and 160 MPa) and feed rate (5, 10 and 15 mm/min). The output parameters such as kerf angle and material removal rate (MRR) were studied with the varying combination of input parameters. From the results, the optimal parameters for machining the geopolymer composites were interpreted.

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Effect of standoff distance on the kerf characteristic during abrasive water jet machining

Cited by 18 publications

References 3 publications

Recent Progress Trend on Abrasive Waterjet Cutting of Metallic Materials: A Review

Recent Progress Trend on Abrasive Waterjet Cutting of Metallic Materials: A Review

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

Abrasive water jet machining of fly ash and metakaolin based geo-polymers

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