Sandstone Turning by Abrasive Waterjet

Abrasive waterjet cutting technology has come back into use in the field of rock excavation (such as for tunneling) due to the need for precision construction with low vibration. Because the abrasive particles play an important role in efficient erosion during the cutting process, the abrasive characteristics strongly affect the rock cutting performance. In this study, rock cutting tests were performed with five different coarse (40 mesh) garnets to explore the effect of the abrasive feed rate, physical properties, and particle size distribution on rock cutting performance. In addition, garnet particle disintegration was investigated with garnet characteristics for the abrasive waterjet. The test results indicate that the particle size distribution, garnet purity, specific gravity, and hardness are the most important parameters for rock cutting performance. This study offers better understanding of coarse garnet performance and efficiency according to the garnet characteristics. This should provide assistance in selection of the garnet needed to achieve the desired performance for hard rock cutting.

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“…e abrasive waterjet represents a suitable method that has specific benefits for the cutting, drilling, and turning process [1].…”

Section: Introductionmentioning

confidence: 99%

Effect of Garnet Characteristics on Abrasive Waterjet Cutting of Hard Granite Rock

Joo

Cha

et al. 2019

Advances in Civil Engineering

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“…Libor 2014 reported the shape distortion of steel while machining with AWJ process [32]. Other than engineering materials, research is also focused on machining hard rocks [33,34].…”

Section: Work Materialsmentioning

confidence: 99%

Abrasive water jet cutting process form machining metals and composites for engineering applications: A review

et al. 2021

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Abrasive water jet (AWJ) cutting is one of the advanced machining techniques to solve the different issues raised in the manufacturing process. Machinability of the material, surface damage, profile cutting, micro-/macro-product making, production time and cost are some of the problems caused. Research on AWJ has addressed the major problems to produce engineering components under the eco-friendly environment. It is a short report on AWJ cutting which is used to explain the basic problems and the principle while machining different engineering materials. In this paper, the influence of input process parameters, erodent/abrasive materials and bulk material properties along response on kerf wall inclination, material removal rate and surface quality are discussed in detail. In addition, the electron microscopic images are used to discuss the wear mechanism on different materials. The information discussed in the paper will support young researchers to understand the AWJ process and its scope.

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“…After nearly 50 years of development, this technology and its derivative technologies are increasingly and widely used. The use of abrasive water jets formed by mixing abrasive particles with a water jet has attracted much attention in the fields of milling 7 – 9 , turning 10 , 11 , grinding 12 and polishing 13 . Even so, for achieving its basic function, cleaning, in-depth research valuable and has the potential to expand its fields of application.…”

Section: Introductionmentioning

confidence: 99%

Application of a water jet for cleaning grease and improving the surface adhesion properties of galvanized steel wire ropes

Miao

Zhang²,

et al. 2022

Sci Rep

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Traditional cleaning processes may be banned in the near future because of the hazards they pose to the environment. In this study, a water jet was used to clean grease residues from steel wires for the first time. The EDS and SEM results of the steel wire rope surfaces and supplementary water jet impact experiments on galvanized steel plates revealed that when the pressure was lower than 50 MPa and the traverse speed was higher than 600 mm/min, the water jet caused minimal damage to the coating. When the pressure was 5 MPa, the cleaning ratio was between 45 and 60%, and the level of cleaning increased with increasing pressure. Two proposed concepts of exposure ratio and nonexposed area were applied to quantitatively analyze the theoretical upper and lower limits for grease that could be cleaned from two typical structures. The results showed that the lower and upper cleaning limits for structure 7 × 3 were 38.1% and 83.3%, while the lower and upper limits for structure 1 × 3 + 5 × 7 were 35.5% and 59.2%, respectively. This result explains why the grease content of structure 7 × 3 was lower than that of structure 1 × 3 + 5 × 7 after cleaning. In addition, the adhesion test results showed that adhesion to the two kinds of steel wire ropes after cleaning was increased by 126% and 145.71%, respectively, which means that additional processes for improving adhesion could be omitted after using a water jet for cleaning. This is an advantage that traditional cleaning processes do not offer.

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Sandstone Turning by Abrasive Waterjet

Cited by 32 publications

References 11 publications

Effect of Garnet Characteristics on Abrasive Waterjet Cutting of Hard Granite Rock

Effect of Garnet Characteristics on Abrasive Waterjet Cutting of Hard Granite Rock

Abrasive water jet cutting process form machining metals and composites for engineering applications: A review

Application of a water jet for cleaning grease and improving the surface adhesion properties of galvanized steel wire ropes

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