COMPUTATIONAL FLUID DYNAMICS SIMULATION OF EROSION-CORROSION IN ABRASIVE WATER JET MACHINING

2021 ◽  
pp. 2150031
Author(s):  
H. DENİZ ADA ◽  
MEHMET ERDEM ◽  
KADİR GOK
Keyword(s):  
High Pressure ◽  
Water Jet ◽  
Dynamics Simulation ◽  
Abrasive Water Jet ◽  
Manufacturing Method ◽  
Water Jet Cutting ◽  
Erosion Corrosion ◽  
Computer Environment ◽  
Manufacturing Methods ◽  
Traditional Manufacturing

Today, conventional machining with chip or machining without chip machining manufacturing methods is used to bring to the desired dimensions sizes the machines and equipment used in the industry. However, non-traditional manufacturing methods are used in cases where traditional machining manufacturing methods are inadequate. Cutting with water jet which is one of the non-traditional manufacturing methods is commonly used in several fields of industry. Unlike traditional manufacturing methods such as turning and milling, not using of a physical cutting tool is among the advantages of the method. Abrasive water jet manufacturing method was started to be applied by adding abrasive particles in the water jet. Apart from the superior properties of the method, possible damages occur in the water jet nozzle due to processes such as cutting or drilling by applying high pressure. Erosion-corrosion is the leading damage among these damages. In this study, the erosion-corrosion in the nozzle caused by high-pressure water and abrasive during the abrasive water jet cutting process was simulated in the computer environment. In this paper, the erosion rate in the nozzle was calculated as 6,90E-06[Formula: see text]kg/m2[Formula: see text]s. This value was converted as 0,30[Formula: see text]mm (27,09[Formula: see text]mm for yearly) via developed software for 100[Formula: see text]h.

scholarly journals Study of high-pressure abrasive water jet capacity indices for steep cutting of steels

Mechanik ◽  
2017 ◽  
Vol 90 (11) ◽  
pp. 997-999
Author(s):  
Rafał Kudelski
Keyword(s):  
High Pressure ◽  
New Technologies ◽  
Construction Materials ◽  
Dimensional Accuracy ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
New Construction

Quality of the technological part is one of the major problems of modern machine manufacturing. In many cases, components are manufactured from new construction materials with specific properties that are considered difficult to machining applying conventional technologies. Hence, to search for new technologies, including high-pressure abrasive water jet cutting in the context of the S355J2H steel elements manufacture, while maintaining the quality requirements of the machining, is the need. The results of tests on the accuracy of components made of S355J2H steel are presented as dependent on the water jet pressure, cutting feedrate and the amount of abrasive dozed, with constant element thickness. The accuracy of the design measure – regardless of dimensional accuracy – was the magnitude of the lateral sagging of the cut workpiece resulting from the specific mechanism of water jet removal mechanism.

High Pressure Abrasive Water Jet Cutting As a Dismantling Tool

2001 ◽  
Author(s):  
L. Denissen ◽  
V. Massaut ◽  
M. Klein ◽  
J. Dadoumont ◽  
H. Davain
Keyword(s):  
High Pressure ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Circular Saw ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Cutting Equipment ◽  
Band Saw ◽  
Mechanical Cutting ◽  
Reactor Pool

Abstract Since 1989, SCK•CEN is dismantling the BR3 (Belgian Reactor no3). During these 11 years of decommissioning, a lot of experience is gained in the field of remotely controlled cutting techniques for high active parts and decontamination techniques of highly contaminated parts. Mechanical cutting techniques (circular saw and band saw) were used for cutting the reactor Pressure Vessel (RPV) and its internals. For some large components in the reactor building, like the steam generator, the pressurizer and the Neutron Shield Tank, a new tool, the High Pressure Abrasive Water Jet Cutting will be used to cut activated and contaminated pieces with material thicknesses ranging from 20 to 170 mm. Deliverance of the cutting equipment is foreseen in the summer of 2001. Cold tests and training sessions for the operators will then take place and by the beginning of 2002 the cutting equipment will be installed in the reactor pool inside the controlled area to start the actual work.

Key Technology Research on Abrasive Water Jet Cutting System in Deepsea

2013 ◽  
Vol 310 ◽  
pp. 309-313 ◽  
Author(s):  
Ling Sun ◽  
Yong Jun Gong ◽  
Ji Rui Fan ◽  
Zu Wen Wang
Keyword(s):  
High Pressure ◽  
New Technology ◽  
Water Jet ◽  
High Tech ◽  
Abrasive Water Jet ◽  
Ultra High Pressure ◽  
Water Jet Cutting ◽  
Core Technology ◽  
Abrasive Water Jet Cutting ◽  
Cutting System

Ultra high pressure abrasive water jet cutting is a new technology device in salvage, ocean development, military fields, and it also is one of the hottest and most advanced topics in the field of fluid control. The present study is aiming at designing a deep sea abrasive water jet cutting system and executive instrument for core technology of large-tonnage salvage equipment. The analysis on the kinematics of cutting trail about executive instrument of abrasive water jet, and the control of actuator movement through the reverse kinematics solution are of certain significance on the establishment of a technological base of application on ultra high pressure abrasive jet and the improvement of the ocean high-tech equipment level.

Pre-Mixed Abrasive Water Jet Cutting in the Marble

2014 ◽  
Vol 981 ◽  
pp. 818-821 ◽  
Author(s):  
Ji Sheng Xia ◽  
Qing Zhu Jia ◽  
Zhen Zhen Sun
Keyword(s):  
High Pressure ◽  
Traditional Method ◽  
Dimensional Accuracy ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Processing Efficiency ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Traditional Processing ◽  
Tool Cost

High-pressure abrasive water jet cutting is a cold and non-traditional method, with many advantage which the traditional processing do not have.The traditional method of cutting marble have rough sections, poor dimensional accuracy, large seam, high tool cost and the processing efficiency is low. Can be considered high-pressure abrasive water jet cutting to improve its traditional cutting defects. This article explores the use of the pre-mixed abrasive water jet cutting in the marble, and its comparison with traditional methods, highlighting the advantages which the pre-mixed abrasive water jet cutting in the marble.

scholarly journals Influence of water pressure and abrasive materials nature on the duration of the high-pressure abrasive water jet cutting in building structures

2020 ◽  
Vol 4 (4) ◽  
pp. 397-405
Author(s):  
Дмитрий Владимирович Василевич ◽  
Вячеслав Вячеславович Лахвич ◽  
Вячеслав Яковлевич Родак
Keyword(s):  
High Pressure ◽  
Water Pressure ◽  
Water Jet ◽  
Building Structures ◽  
Abrasive Water Jet ◽  
Water Jet Cutting ◽  
Abrasive Water Jet Cutting ◽  
Influence Of Water ◽  
Full Scale Tests ◽  
Rational Process

Purpose. Improving the efficiency of abrasive water jet cutting by choosing rational process parameters and abrasive material. Methods. Full-scale tests within the program of a full-factor experiment on cutting a high-pressure barrel into building structures, statistical data processing. Findings. Experimental data on the time of the high-pressure cutting barrel into building structures made of various materials have been obtained. Application field of research. The research results can be used by fire rescue units in emergency response.

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