Effect of Nozzle Geometry on Air-Jet Texturing PerformanceReliable performance

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  • Effect of Nozzle Geometry on Air-Jet Texturing

    2018-2-17 · This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet text...

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  • Effect of Nozzle Geometry on Air-Jet Texturing

    'Effect of Nozzle Geometry on the Flow Charact eris tics of Small W ater Jets', Proceedings of the Institution of Mechanical Engineers, Part C, Journal of M echanical Engineering Science, Vol. 220 ...

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  • Effect of Nozzle Geometry on Air-Jet Texturing

    2020-4-22 · succeeded in relating the properties of air-jet textured yarns to nozzle geometry. A companion paper, Versteeg et al. [8], reports a preliminary investigation of the effect of nozzle geometry on air flow properties and texturing quality for a range of cylindrical industrial nozzles. However, since the geometry did not vary in …

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  • Effect of Nozzle Geometry on Air-Jet Texturing

    2018-2-17 · This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet texturing nozzle with a rectangular cross section has been developed.

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  • Effect of nozzle geometry on air-jet texturing

    We are not allowed to display external PDFs yet. You will be redirected to the full text document in the repository in a few seconds, if not click here.click here.

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  • Effects of geometry on the flow characteristics and ...

    Air-jet texturing is a versatile process for producing a range of synthetic yarns with a spun-like appearance, which are widely used for apparel and furnishing fabrics and industrial textiles.There is no universal nozzle capable of processing any supply yam of any linear density.The role played by nozzle geometry is still not fully …

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  • Effect of nozzle size on texturing performance:

    Effect of nozzle size on texturing performance: comparison between air-jet and steam-jet texturing Abstract The objectives of this research work were to investigate the use of steam in order to

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  • Effect of nozzle geometry on the performance of laser ...

    2016-4-13 · The performance of “ablation mode” laser propulsion thrusters can be improved obviously by nozzle constraint. The nozzle geometry of “ablation mode” laser propulsion thrusters has been studied experimentally with CO 2 lasers. Experimental results indicate that the propulsion performance of cylindrical nozzle thrusters is better than expansionary nozzle …

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  • Effect of nozzle geometry on critical-subcritical flow ...

    2019-2-1 · Nozzle geometry does have a significant impact of nozzle performance. Effect of single-phase air flow through a nozzle revealed the effect of different nozzle parameters on nozzle performance. A lower diverging angle and no elongated throat gave the best critical pressure ratio and a low pressure drop.

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  • Effect of jet nozzle geometry on flow and heat transfer ...

    2016-1-25 · Effect of jet nozzle geometry on flow and heat transfer performance of vortex cooling for gas turbine blade leading edge. ... Influences of jet nozzle geometry on vortex cooling characteristics are researched. • This paper focuses on assessment of flow field and thermal performance for different jet nozzle aspect …

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  • [PDF] Effect of Nozzle Geometry on the Suction Flow

    ABSTRACT Ejector is an equipment devised for making use of the low pressure occurring from the fast fluid injection and it is a transportation equipment which can obtain vacuum using the kinetic energy of the fluid. This ejector system is, nowadays, widely used for construction machinery, heavy equipments, the cooling and …

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  • Effects of axisymmetric sonic nozzle geometry on Mach

    2012-5-17 · Effect of axisymmetric sonic nozzle geometry on characteristics of supersonic air jet Journal of Thermal Science, Vol. 13, No. 2 An experimental study of underexpanded sonic, coaxial, swirl jets

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  • Influence of Nozzle Geometry on the Noise of High

    2012-5-17 · Effect of nozzle exit area on the performance of a turbojet engine Aerospace Science and Technology, Vol. 130 Characteristics of fine-scale turbulence noise evaluated by modal analysis

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  • Performance Study of Nozzle Geometry on Heat

    relative to the jet temperature, and jet diameter [2, 3]. The geometry of the nozzle has considerable effect on the heat transfer between the impinging jet and the plate. The nozzle geometry ...

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  • (PDF) Impact of Process Parameters and Nozzle Design

    Figure 1 . 1 :11Process Flow of Air-Jet Texturing (fundamentals of air-jet texturing- Figure 2 . 121Taslan IX jet nozzle with axial air flow[17] Dissatisfied with the poor performance of the Taslan IX nozzle, Du Pont decided to develop a new design with improved aerodynamics of the nozzle's inner surfaces.

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  • Effect of Air-Jet Texturing on Adhesion Behaviour of ...

    2020-1-10 · The effects of air-jet texturing on the adhesion of technical polyester yarns were discussed in terms of changes in the yarn geometry and changes on the single Þber surfaces. Changes in the yarn geometry were investigated by optical microscopy studies, while changes on the Þber

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  • [PDF] The Mechanism of the Air-Jet Texturing: The Role

    A comprehensive review of the roles played by the airflow, wetting and spin finish on the air-jet texturing process is given. The results of an experimental investigation of the air-jet texturing process using residual spin finish, yarn-to-yarn static and kinetic friction, filament strength, filament diameter, and on-line tension measurements …

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  • 'Effects of Nozzle-Inlet Chamfering on Pressure Drop and

    2000-1-1 · The effect of changing the nozzle geometry on the pressure drop and local heat transfer distribution in confined air jet impingement on a small heat source was experimentally investigated. Heat transfer and pressure drop measurements obtained with chamfered nozzles were compared to those obtained with a square-edged (non-chamfered) nozzle …

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  • Experimental investigations of the effect of nozzle ...

    The paper deals with experimental investigations of a two-phase water-air ejector. The aim of research is to find out the influence of the ejector geometry on its performance. Particuler attention is paid to the influence of the nozzle geometry on the gas suction rate and the ejector efficiency.

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  • Effect of Inlet Geometry on Fan Performance and Flow

    In order to clarify the effect of rotor inlet geometry of half-ducted propeller fan on performance and velocity fields at rotor outlet, the experimental investigation was carried out using a hotwire anemometer. Three types of inlet geometry were tested. The first type is the one that the rotor blade tip is fully covered by a casing. The …

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  • Title: Texturing and intermingling processes by using air

    The effect of nozzle geometry on the AJT process is investigated by using a series of systematically designed nozzles. A number of geometrical parameters of cylindrical type AJT nozzles are specified for successful texturing, after assessing performance of the nozzles by stabilising zone tension and the properties of yarns produced.

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  • 'Effects of Nozzle-Inlet Chamfering on Pressure Drop and

    The effect of changing the nozzle geometry on the pressure drop and local heat transfer distribution in confined air jet impingement on a small heat source was experimentally investigated. Heat transfer and pressure drop measurements obtained with chamfered nozzles were compared to those obtained with a square-edged (non-chamfered) nozzle …

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  • Experimental Study on Effects of Nozzle Hole Geometry

    2009-11-2 · The effect of injection pressure was not significant at retarded injection timings, i.e., 5 ATDC. The convergent nozzle was found to produce higher soot emissions compared with the straight-hole nozzle under the same injection conditions. Effects of the convergent nozzle on NO x emissions and fuel …

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  • Study of the Different Factors That Influence Jet Pump ...

    Suction head, driving air pressure and the percentage of the distance between throat section and nozzle are recorded. The effect of each parameter on the pump performance is investigated, in order to have a better understanding about the behavior of such pump under various conditions. A simple geometry jet pump was …

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  • 1995 Analysis and design of air-jet pumps for

    2020-10-13 · jet pump geometry, a systematic experimental investigation is undertaken into the characteristic performance of central air-jet pumps with five different nozzle geometry and annular air-jet pumps with multi-hole ring nozzles operating under both air-only and air-solid flow conditions.

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  • OPTIMIZATION OF A HIGH-EFFICIENCY JET

    2021-5-13 · A number of researchers made an effort to understand the effect of jet ejector geometry on jet ejector performance. For example, Kroll (1947) investigated the effect of convergence, divergence, length, and diameter of the throat section, nozzle position, induced fluid entrance, and motive velocity. Croft and Lilley (1976) …

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  • Analysis and Optimization of a Texturing Nozzle ...

    and twist effects. The air flow in the texturing nozzle can be described by the conservation equations for mass, momentum and energy, combined with the ideal gas equation. This leads to the compressible Navier-Stokes equations. In the nozzle, the string of filaments is represented as a cylindrical dome, in order to simplify the geometry.

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  • (PDF) Airjet texturing

    Key words air-jet texturing, yarn wetting, inter- filament friction, loop formation and fixation, spin finish The air-jet texturing process produces spun-like yarns by this entrained water, usually adhered …

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  • The influence of air duct geometry on air jet direction in ...

    The geometry of main distribution duct with sufficient level of detail should be included in the geometry of CFD model, because direction of air jets generated by air ... Other. The influence of air duct geometry on air jet direction in aircraft cabin ventilated by mixing ventilation.

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  • www.spm.com

    2020-1-10 · Effect of air-jet texturing on adhesion behaviour of polyester yarns to rubber Serpil Koral Koca,*, Asli Sengonul Hockenbergera, Qufu Weib aFaculty of Engineering and Architecture, Textile Engineering Department, Uludag University, 16059 Gorukle, Bursa, Turkey b Key Laboratory of Eco-Textiles, Ministry Of …

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  • A CFD Analysis of Compressible Flow Through

    2017-4-26 · the accuracy of current CFD technology in obtaining multi-stream air breathing jet performance and ow structure. II. Computational Con guration II.A. Nozzle Geometry and Mesh Our CFD study was conducted on axisymmetric nozzles of 15o, 25 o, and 40 cone-half-angle (See Fig. 1

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  • The influence of air duct geometry on air jet direction in ...

    The geometry of main distribution duct with sufficient level of detail should be included in the geometry of CFD model, because direction of air jets generated by air ... Other. The influence of air duct geometry on air jet direction in aircraft cabin ventilated by mixing ventilation.

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  • Numerical Investigation of the Effects of Primary Nozzle ...

    2020-11-30 · A supersonic ejector with desirable performance characteristics reduces the energy consumption rate of an ejector refrigeration system and increases its coefficient of performance (COP). In this paper, the effects of using different primary nozzles on the performance of a supersonic ejector of an ejector …

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    2017-9-25 · altitudes, the nozzle flow is attached to the wall until the exit plane, and the full geometrical area ratio is used. Because of the higher area ratio, an improved vacuum performance is achieved. However, additional performance losses are induced in dual-bell nozzles. Fig 3.2(2) performance losses are induced in dual-bell nozzles.

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  • Design Enhancements of the Two-Dimensional, Dual

    2020-8-6 · dual throat nozzle were designed, analyzed computationally and tested at static flow conditions. The effect of convergent and divergent ramp angles, the effect of cavity shape, the effect of secondary injection hole size, and the effect of secondary injection geometry (row of holes or slot) on nozzle igternal performance …

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  • Effect of Injector Nozzle Design on Spray Characteristics ...

    Hydrogen has a unique flammability property compared to other fuels. Previous researches proved that direct injection is the most suitable method for this particular fuel. This research aims to study the effect of injector nozzle geometry on mixture and internal combustion efficiency in four stroke automotive engine which …

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  • Liquid jet nozzles, mixing nozzles, tank mixing systems ...

    The whole simulated geometry consisting of all liquid jet mixing nozzles and the tank with pump connection is converted to a calculation grid by means of a so-called grid generator which is the …

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  • Investigation of the use of steam for spun-like textured ...

    2015-4-20 · Purpose – The purpose of this paper is to investigate the use of steam in order to replace air in the production of spun-like textured yarns. Further, this paper analyse the effect of production speed on process and textured yarn properties. Design/methodology/approach – An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle…

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  • A text book of fibre science and technology by S P Mishra ...

    Effect of various softeners on the performance of polyester-viscose ring and air-jet spun yarn fabrics. Sharma, I. C ... Effect of linear density of feed yarn filaments and air-jet texturing process variables on compressional properties of woven fabrics ... Effect of some nozzle parameters on the characteristics of jet ring-spun yarns …

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  • Experimental investigations of the effect of nozzle ...

    The paper deals with experimental investigations of a two-phase water-air ejector. The aim of research is to find out the influence of the ejector geometry on its performance. Particuler attention is paid to the influence of the nozzle geometry on the gas suction rate and the ejector efficiency.

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  • Effects of pylon geometry on mixing enhancement in a ...

    The Pylon 1 geometry is designed to study the effect of reduction in effective blockage area on performance parameters. Since the formation of vortices are influenced by the slanted surfaces of the pylon, the Pylon 2 geometry is designed to accommodate additional slanted surfaces while maintaining a reduced effective …

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  • EFFECT OF NOZZLE DIAMETER ON MACROSCOPIC

    ABSTRACT. Nozzle diameters play a key role in the atomization and evaporation processes of diesel fuel. However, the influence of nozzle diameter on the spray characteristics of heavy-duty diesel engines rarely involves cold-start conditions, especially considering the coupling of the nozzle with the ambient temperature …

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  • A text book of fibre science and technology by S P Mishra ...

    Effect of various softeners on the performance of polyester-viscose ring and air-jet spun yarn fabrics. Sharma, I. C ... Effect of linear density of feed yarn filaments and air-jet texturing process variables on compressional properties of woven fabrics ... Effect of some nozzle parameters on the characteristics of jet ring-spun yarns …

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  • Jet Impingement Heat Transfer: Physics, Correlations,

    2011-5-31 · targets with very uneven surfaces, the jet nozzles may have to be located too far from the surface. For jets starting at a large height above the target (over 20 jet nozzle diameters) the decay in kinetic energy of the jet as it travels to the surface may reduce average Nu by 20% or more. (2) The hardware

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  • Effect of Louver Angle on Performance of Heat

    2020-10-13 · cells. Zhang and Hrnjak (2009, 2010a, 2010b) analyzed and compared air-side performance of three types of heat exchanges in frosting conditions. They studied effect of some geometric parameters on performance of PF2 heat exchanger in periodic frosting and compared to serpentine louvered fin geometry.

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  • A review on nozzle wear in abrasive water jet

    2017-6-2 · A review on nozzle wear in abrasive water jet machining application H. Syazwani1, G. Mebrahitom, A. Azmir 1Faculty of Manufacturing Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia . E-mail :[email protected], [email protected], [email protected] . Abstract.This paper discusses a review on nozzle wear in abrasive water jet …

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  • WO2004085722A1 - Texturing nozzle and method for

    The invention relates to a method for texturing a filament yarn by means of a texturing nozzle having a continuous yarn channel into which pressurized air of more than 4 bar is injected in the direction of yarn transport. At the outlet end, the yarn channel is enlarged at an enlargement angle of more than 10°, preferably in a …

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  • Fuel Injection: Breaking Up is Hard to Do - Ansys

    2020-11-11 · The performance of a fuel injection nozzle in breaking up the liquid fuel into spray droplets and the fuel–air mixing in the engine cylinder have a major impact on fuel economy and emissions. Both primary and secondary breakup phenomena occur simultaneously in the spray formation process. The primary breakup refers to the liquid jet …

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  • A review of physical experimental research in jet ...

    2019-8-13 · Jet electrochemical machining (Jet-ECM) is a non-traditional machining process that has developed rapidly since its introduction in the 1980s with progress being made in micro-machining and surface finishing. This paper critically reviews the development of physical experimental work in Jet-ECM and corresponding hybrid technologies and their applications, e.g. laser- and air-assisted Jet …

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  • Publications - Fluid Mechanics

    Sabnis, K and Babinsky, H and Galbraith, DS and Benek, JA (2021) Nozzle geometry-induced vortices in supersonic wind tunnels. AIAA Journal, 59. pp. 1087-1098. ISSN 0001-1452. Story, J and Garcia, IV and Babinsky, H (2021) The Effect of Cross-Flow Vortex Trap Devices on the Aerodynamic Drag of Road Haulage Vehicles. SAE …

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  • Ink - Jet Texturing - A New Technology for Producing ...

    2003-4-7 · At the heart of the print system is a 126 nozzle ink-jet head, which is capable of printing using a range of different fluids. Applications Ink-Jet Texturing in Engine Components. Intexia’s high-resolution system offers a wealth of potential applications for ink-jet texturing in engine components.

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  • Fluid dynamics of acoustic and hydrodynamic cavitation

    2017-3-15 · The reasons for these discrepancies are: secondary-scale effects related to micro-geometrical differences, which are caused by wall roughness and by details of the nozzle geometry, such as roundness at the nozzle inlet [47,48] and nozzle …

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  • TEKSTİL VE MÜHENDİS (Journal of Textiles and

    Alagirusamy et al. (2005) reported a study on effect of jet design to the intermingling and also described im-provements of commingling nozzle design in the com-mingling process. This study found that knot frequency and interlacing degree of composite commingled yarns depend on the nozzle design. Air inlet number and inlet

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  • KIT - Institut für StroemungsmechanikInstitute

    Assistant Professor of Polytechnic University of St. Petersburg, Russia Guestprofessor of the Harbin Engineering University and Jiangsu University, China. Group Leader (CFD) room: 604. phone: +49 721 608-43813. franco magagnato. Vhd8. ∂kit edu. Institut für Strömungsmechanik. Karlsruher Institut für Technologie.

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  • Micromachines

    Jet electrochemical machining (Jet-ECM) uses an electrolyte jet which flows through the nozzle and hits the workpiece directly to localize the electrochemical reaction [].With this process; micro-dimples, micro-grooves and micro-slits can be easily fabricated [].Reference [] demonstrated that the horizontal orientation of the jet is beneficial for the Jet …

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  • Drawing and texturising - SlideShare

    2014-3-26 · Draw Texturing Machine 26. 4. Air jet Texturising: 3/26/2014DRAWING & TEXTURISING29 In this method of texturing, yarns led through the turbulent region of a air jet at a rate faster than if is drawn off on the far side of the jet, in the jet…

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  • Coatings

    Figure 2b shows particle imaging geometry used in the measurements. Details of the measurement details setup can be found from . Single illuminated image covers a spray jet cross section of (0.5 × 5 mm 2). For this reason, precise alignment of spray nozzle with the imaging plane is needed.

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  • Major project report - slideshare.net

    2015-12-12 · Major project report 1. CFD analyses of an air-jet loom i CFD ANALYSES OF AN AIR-JET LOOM by Ágnes Livia BODOR /GG1E60 Submitted to the Department of Fluid Mechanics of the Budapest University of Technology and Economics in partial fulfillment of the requirements for the degree of Master of Science in Mechanical …

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  • Advanced Solutions for Waterjet Cutting - Flow Waterjet

    Advanced Solutions Proven waterjet solutions from the world's most experienced applications engineering team. In addition to our state-of-the-art Mach Series, we provide complete waterjet solutions that can be customized and developed to match your specific needs.

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  • A Sustainable Challenges of Abrasive Jet Machining

    2020-5-28 · The AJM process is based on the erosion of substrate by an abrasive-laden air jet or abrasive air jet (AAJ). The abrasive particles are accelerated to a high velocity by applying pressurized air in a fi ne nozzle, and the nozzle moves relative to the work substrate for making a structure on it.

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  • Machinability study of Ti-6Al-4V alloy using solid

    2020-10-13 · problem, a suitable cutting parameter, tool geometry, and sustainable methods are necessary. This paper presents the effect of MoS 2 solid lubricant (SL), cutting speed, and nose radius during turning of Ti-6Al-4V alloy using the TiAlN coated carbide tool. The experiments are performed at different cutting speeds, …

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  • Author Index - D

    2011-6-22 · Comparison of the Steady-State and Dynamic Performance of Two Fixed-Geometry Journal Bearings [GT2011‑46761] Effect of Surface Texturing on the Steady-State Properties and Dynamic Coefficients of a Plain Journal Bearing: Experimental Study [GT2011‑46804] Dagaut, P. Synthetic Jet Fuel Combustion: …

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  • A Novel Approach to Energy Based Evaluations of Ultra

    2011-1-10 · The net energy transferred to the workpiece is a function of four key process parameters, namely i.) orifice diameter, ii.) orifice geometry, iii.) supply pressure, and iv.) traverse rate. The energy density also incorporates jet spreading as well as flow rate and impulse pressure distributions within the waterjet.

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  • Friction Stir Welding of an Aluminium Alloy: Tool

    A summary of a report on work to determine the effect of tool geometry on weld consolidation when butt welding 6.4mm aluminium alloy plate and to demonstrate the capability of friction stir welding for 50 and 75mm …

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  • MAHLE Catalog Guides - CIF and PunchOut

    The purpose of the catalog guides are to help Suppliers understand the business processes required by MAHLE. Please reach out …

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  • Additive Manufacturing of Structural Ceramics: A ...

    2021-8-11 · Additive manufacturing is best suited for low-volume production of complex geometries, because time and cost are weakly dependent on complexity; for masked AM processes, time and cost are fully-independent from complexity in the build plane [].A case study performed by Atzeni et al. [] compared the cost of …

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  • Project KEEN: AI meets 100 years of engineering ...

    The innovation platform KEEN »Artificial Intelligence Incubator Labs in the Process Industry« connects 20 industrial and scientific institutions. The common goal: to accelerate the use of AI technologies and AI methods in the process industry and to comprehensively evaluate the potential, especially for chemical production. The …

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  • ARPN :: Journal of Engineering and Applied Sciences

    2016-2-28 · Effect of surface texturing on hydrodynamic performance of journal bearings: Author (s): Shahab Hamdavi, H. H. Ya and TVVLN Rao: Abstract: The request to use hydrodynamic journal bearings in different industries consisting high speed and high load are commonly demanded. The necessary of improving its performance …

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  • Dr Arunangshu Mukhopadhyay, Professor - Textile

    A. Mukhopadhyay & D. P. Chattopadhyay, “Effect of caustic soda treatment on the mechanical properties of ring and air jet spun yarn fabrics” 1996: Textile Asia: S. K. Punj, A. Mukhopadhyay & R. N. Saha, “Air-jet …

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  • Volumes

    Performance Evaluation of White Coconut Oil Based Metal Working Fluid (MWF) Under Minimum Quantity Lubrication (MQL) for Machining of Inconel 718 and AISI 304 ... Surface Texturing Process by High Speed Ultrasonic Turning to Obtain Low Friction Surface. Keisuke Hara, ... Effects of Cold Air Supply on Cutting …

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  • MASTER OF TECHNOLOGY (M.TECH) (TT/TC)

    2019-3-29 · picking, airjet nozzle, waterjet nozzle, rapier drives. Kinematics of weft population in unconventional weaving machines : air drag theory. Loom timings for shuttleless looms. TT 510 Structural Engg of Fibre Assemblies 4(150 ) Elements of yarn geometry. Geometry of helix and its application to yarn structure. Geometry …

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  • Deposition of Variable Bead Diameter Arrays by Self ...

    2018-6-22 · The effect of nozzle diameter on bead morphology was explored by depositing single-layer samples with needles of 25, 30, and 33 gauge with inner diameters of 260, 159, and 108 μm, respectively. A 1.5 wt % PEO in water solution was used; samples were collected at 100 mm/s.

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  • Polymers for Melt Electrowriting - Kade - 2021 -

    This EHD effect that prevents Plateau–Rayleigh instabilities allows the nozzle flow rate to be substantially reduced for MEW. [5, 13] Additionally, the comparable high viscosity and low conductivity of melt fluids support the control and stability of the jet.[5, 13-15] This in combination with the controllable collector plate, allows the defined deposition of the jet…

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  • Contamination by Air on TIG Welded Pure Titanium Sheet

    Autogenous TIG welds were made in 1.5mm commercially pure Ti sheet using Ar shielding gas, which was progressively contaminated with oxygen or air. The welds were examined visually for surface colour and by an ESCA technique. Welds were analysed for 0 and N pick-up, and tensile and hardness tests were carried out. …

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  • Volumes

    On Gas Turbine Performance With Pulse Jet for Air Filters Cleaning. S. Brusca, R ... Combustion Characteristics and Hydrogen Addition Effects on the Performance of a Can Combustor for a Micro Gas Turbine. Hsin-Yi ... (Mechanics) , Geometry , Stress , Torque , Transients (Dynamics) Effects of Reynolds Number and Heat Transfer on …

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  • M.Tech. (Textile Technology) from Rajasthan Technical ...

    Noise control in texturing. Air jet texturing - Principle, mechanisms, development of jets and machinery, process optimization and characterization, air jet texturing of spun yarns. Air interlacement - Principle and mechanism, jet development and characterization. Bulked continuous filament yarns - Need, principle, technology …

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  • Andrew McNary - Research Scientist - Comco Inc.

    View Andrew McNary’s profile on LinkedIn, the world’s largest professional community. Andrew has 4 jobs listed on their profile. See the complete profile on LinkedIn and discover Andrew’s ...

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