Papers by Keyword: Abrasive Water Jet

Abstract: Abrasive water jet surface cleaning technology offers advantages such as low energy consumption, high cleaning rate, and cost-effectiveness. It can effectively meet the surface cleaning requirements of complex curved metal parts and composite materials, presenting promising applications in the fields of remanufacturing and precision machining. This study specifically focuses on the design of an abrasive water jet surface coating removal device for metal structural components. To address the issue of abrasive jet wear on sealing structures, a rotating pipeline approach is employed. This innovative device allows for adjustments in the jet incidence angle and rotation radius. A simulation model is developed to predict removal rates by MATLAB/Simulink. And an experimental system is established to validate the functionality of the removal actuator, demonstrating a maximum removal rate of 34.2mm²/s at jet pressure of 5 MPa. This research contributes to enhancing the efficiency of removing surface coatings from structural components and provides valuable theoretical guidance for the planning of coating removal paths for actuators.

Abstract: This contribution deals with the study of cut surface after the abrasive water jet application on the material Maraging Steel MS-1, prepared by the 3D printing method Direct Metal Laser Sintering. The aim of the study is to point out the morphology of the cut plane under the use of various technological parameters, like feed rate of machining and abrasive mass flow at the constant cut pressure. For the track morphology monitoring after the abrasive water jet application, scanning electron microscope was used. For the identification of observed particles stabbed in the cut track, chemical composition EDX analysis was used.

Abstract: The purpose of this research is to analyse the technological and economical aspects of making 3D print pieces to produce functional parts and subassemblies for abrasive waterjet processing equipment. The authors of this paper intend to make a clarification on the technological and economic approaches of material that can be used to make such a reference in terms of economic efficiency and technology. In the paper are analysed all the aspects involved in generating the necessary elements on the mechanical side of them by FDM (Fused Deposition Modelling). The paper is structured in a five chapters in which it is presented in a logical order the analysis of the materials that can be used in the mentioned technological field, the technological parameters specific to the analysed process, the method of generating the parts and their realization from a practical point of view and presenting the main economic aspects that involve the manufacturing costs of specific parts through 3D printing technology for components of water jet processing equipment with suspension abrasive media.

Abstract: Water jet cutting is one of the newest techniques in non-conventional machining processes. It is a flexible technology since the same equipment can be used to cut virtually any material, such as steel stainless steel, high-nickel alloys and polymer composites (usually, for these materials, the water jet is mixed with an abrasive material, the process being known as abrasive water jet cutting - AWJC) . Compared with the classical technologies, water jet cutting presents the following advantages: very low side forces during machining, it is rapid, it is silent, no thermal distortion, a good cutting accuracy and minimal burrs. To optimize the process, it is necessary to analyze the influence of process parameters on the quality of cut. The aim of this paper is to analyze the influence of distance between the cutting head and the working sample on the quality of cut, quantified by the following parameters: width of the processed surface at the jet inlet, jet outlet, deviation from perpendicularity, inclination angle and roughness.

Abstract: The article is focused on the evaluation of the effects of factors of the high-speed hydro-abrasive stream technology during the splitting of construction steels 12 050 and 11 523 through a factor experiment. The experiment examined the effect and significance of two selected factors (type of material and movement speed of the technological head). Measured results are depicted through graphic and numerical relations, based on which new knowledge and recommendations for operators is formulated.