A new approach for the determination of technological parameters for hydroabrasive cutting of materials

Valíček, Ján; Harničárová, Marta; Hlavatý, Ivo; Grznárik, Radovan; Kušnerová, Milena; Hutyrová, Zuzana; Panda, Anton

doi:10.1002/mawe.201600522

Cited by 22 publications

(15 citation statements)

References 27 publications

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“…Therefore, optimization of the machining is the subject of many studies [4,14,21]. High pressure water is converted to a high speed jet inside a nozzle (Fig.…”

Section: Introductionmentioning

confidence: 99%

Disintegration and recycling possibility of selected abrasives for water jet cutting

Perec

2017

DYNA

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This paper presented a study of abrasive disintegration in a 400 MPa Abrasive Water Jet (AWJ). Abrasive particle size and distribution play a major role in machining and cutting efficiency of abrasive water jets. Tested garnet abrasive, commonly used in the abrasive water jet treatment, and corundum. It is of scientific interest to observe the disintegration of these particles which have been interactive with uncommonly used abrasive materials. Time impact of abrasive grains on the workpiece is very short and not all the grain in the stream of being able to do the work of cutting, you should expect the possibility of recovering the abrasive treatment. Considerable importance is the increase in cutting capacity crushed grains due to reveal new cutting edges. Based on a feasibility study this paper will present some results on achieved cutting data and shows also wear of the used focusing tube -the main part responsible for the formation of the jet.Keywords: Abrasive; water jet; grain size; recycling.Valoración de la desintegración y reciclaje de los componentes abrasivos en procesos de cortes con agua ResumenEste trabajo presentó un estudio de la desintegración abrasiva en un chorro de agua abrasivo de 400 MPa (AWJ). El tamaño y la distribución de partículas abrasivas juegan un papel importante en el mecanizado y la eficacia de corte de los chorros de agua abrasiva. Abrasivo de granate probado, comúnmente utilizado en el tratamiento con chorro de agua abrasivo y corindón. Es de interés científico observar la desintegración de estas partículas que han sido interactivas con materiales abrasivos poco comunes. El impacto del tiempo de los granos abrasivos en la pieza de trabajo es muy corto y no todo el grano en la corriente de poder hacer el trabajo de corte, debe esperar la posibilidad de recuperar el tratamiento abrasivo. Considerable importancia es el aumento en la capacidad de corte de granos triturados debido a revelar nuevos bordes de corte. Con base en un estudio de factibilidad, este documento presentará algunos resultados sobre los datos de corte obtenidos y muestra también el desgaste del tubo de enfoque utilizado, la principal parte responsable de la formación del chorro.Palabras clave: Abrasivo; chorro de agua; tamaño de grano; reciclaje.

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“…Therefore, optimization of the machining is the subject of many studies [4,14,21]. High pressure water is converted to a high speed jet inside a nozzle (Fig.…”

Section: Introductionmentioning

confidence: 99%

Disintegration and recycling possibility of selected abrasives for water jet cutting

Perec

2017

DYNA

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“…Typical pressure levels used by the abrasive water jet (AWJ) system range from 400 MPa to 600 MPa. The most commonly used abrasive is garnet [3] and [5].…”

Section: Obtaining the Selected Surface Roughness By Means Of Mathemamentioning

confidence: 99%

Obtaining the Selected Surface Roughness by Means of Mathematical Model Based Parameter Optimization in Abrasive Waterjet Cutting

Perec

Pude

Kaufeld

et al. 2017

SV-JME

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“…As stated by Hashish [ 2 ], AWJ machining consists of shaping materials using a highly concentrated water jet doped with abrasive grains. The most commonly used abrasive is garnet [ 3 ]. In addition to numerous advantages, such as those mentioned by Krajcarz [ 4 ] (including no thermal distortion, high flexibility, high machining versatility, small machining force, and the absence of a heat-affected zone), this method has some limitations, as reported Wang et al [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Variable Radius of Cutting Head Trajectory on Quality of Cutting Kerf in the Abrasive Water Jet Process for Soda–Lime Glass

et al. 2020

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The main innovation of this article is the determination of the impact of curvature of a shape cut out in a brittle material using an abrasive water jet (AWJ) process as an important factor of the machined surfaces. The curvature of a shape, resulting from the size of the radius of the cutting head trajectory, is one of the key requirements necessary for ensuring the required surface quality of materials shaped by the abrasive water jet process, but very few studies have been carried out in this regard. An important goal of the experimental studies carried out here and presented in this work was to determine its influence on the quality of the inner and outer surfaces of the cutting kerf. This goal was accomplished by cutting the shape of a spiral in soda–lime glass. For such a shape, the effect of radius of the trajectory of the cutting head on selected parameters of the surface texture of the inner surface of the cutting kerf (IS) and the outer surface of the cutting kerf (OS) was studied. The obtained results of the experimental studies confirmed that the effect of the curvature of the cut shape is important from the point of view of the efficiency of the glass-based brittle material-cutting process using AWJ. Analyses of the surface textures of the areas located in the upper part of the inner and outer surfaces separated by the use of AWJ machining showed that the OS surfaces are characterized by worse technological quality compared with IS surfaces. Differences in the total height of surface irregularities (given by St amplitude parameter), determined on the basis of the obtained results of the measurements of both surfaces of the cutting kerf, were as follows: ΔStr = 50 = 0.6 μm; ΔStr = 35 = 1 μm; ΔStr = 15 = 1.3 μm. The analysis of values measured in areas located in the more sensitive zone of influence of the AWJ outflow proved that the total height of irregularities (St) of the OS was higher. Differences in the total heights of irregularities for inner and outer surfaces of the cutting kerf were as follows: ΔStr = 50 = 2.1 μm; ΔStr = 35 = 3 μm; ΔStr = 15 = 14.1 μm, respectively. The maximum difference in the total heights of irregularities (St), existing between the surfaces considered in a special case (radius 15 mm), was almost 20%, which should be a sufficient condition for planning cutting operations, so as to ensure the workpiece is shaped mainly by internal surfaces.

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A new approach for the determination of technological parameters for hydroabrasive cutting of materials

Cited by 22 publications

References 27 publications

Disintegration and recycling possibility of selected abrasives for water jet cutting

Disintegration and recycling possibility of selected abrasives for water jet cutting

Obtaining the Selected Surface Roughness by Means of Mathematical Model Based Parameter Optimization in Abrasive Waterjet Cutting

Influence of Variable Radius of Cutting Head Trajectory on Quality of Cutting Kerf in the Abrasive Water Jet Process for Soda–Lime Glass

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