The Experts below are selected from a list of 5088 Experts worldwide ranked by ideXlab platform
Udaya J Prakash - One of the best experts on this subject based on the ideXlab platform.
-
multi objective Drilling Parameter optimization of hybrid metal matrix composites using grey relational analysis
Materials Today: Proceedings, 2020Co-Authors: Udaya J Prakash, Sarala C Rubi, C Rajkumar, Jebarose S JuliyanaAbstract:Abstract The aim of this research work is to investigate the effect of the process Parameters on the thrust force and burr height during the Drilling of hybrid metal matrix composites. Stir casting was used to manufacture hybrid MMCs. Fly ash and boron carbide were the reinforcements used in the manufacture. Tests were carried out in a computer-controlled vertical machining center together with a cutting tool dynamometer to measure the thrust power. The experiments were conducted based on a L27 orthogonal array. Multi-response optimization was performed using grey relational analysis for obtaining minimum thrust force and minimum burr height. The optimum level of input factors namely feed, spindle speed, drill material and reinforcement percentage was defined for low thrust force and low burr height. Confirmation experiments showed that the Drilling Parameters in the Drilling of hybrid metal matrix composites are precisely optimized.
-
Drilling Parameter optimization of metal matrix composites lm5 zro2 using taguchi technique
Materials Today: Proceedings, 2020Co-Authors: Jebarose S Juliyana, Udaya J PrakashAbstract:Abstract Metal matrix composites (MMCs) contain hard ceramic particles are difficult to machine due to their abrasive nature. It is necessary to develop a suitable technology for the efficient machining of MMCs because of their potential widespread usage. An attempt is made to find out the best machining Parameters in the Drilling of (LM5/ZrO2) using Taguchi Technique. A novel composite made of LM5 aluminum alloy reinforced with Zirconia with three different weight percentages (3, 6 & 9%) was fabricated by stir casting process. In the fabricated composite material the influence of input Parameters like feed rate, spindle speed, drill material and percentage of reinforcement on the thrust force is determined by performing Drilling operation in CNC machine using L27 Orthogonal array. The analysis was done using Taguchi’s Signal-to-Noise ratio analysis. Response graphs are used to analyze the response characteristics of the parametric results. Analysis of Variance (ANOVA) was performed to classify the relevant variables and measure their effect on response characteristics. Spindle Speed and Feed rate are the most important input Parameters for obtaining minimum thrust force.
Jebarose S Juliyana - One of the best experts on this subject based on the ideXlab platform.
-
multi objective Drilling Parameter optimization of hybrid metal matrix composites using grey relational analysis
Materials Today: Proceedings, 2020Co-Authors: Udaya J Prakash, Sarala C Rubi, C Rajkumar, Jebarose S JuliyanaAbstract:Abstract The aim of this research work is to investigate the effect of the process Parameters on the thrust force and burr height during the Drilling of hybrid metal matrix composites. Stir casting was used to manufacture hybrid MMCs. Fly ash and boron carbide were the reinforcements used in the manufacture. Tests were carried out in a computer-controlled vertical machining center together with a cutting tool dynamometer to measure the thrust power. The experiments were conducted based on a L27 orthogonal array. Multi-response optimization was performed using grey relational analysis for obtaining minimum thrust force and minimum burr height. The optimum level of input factors namely feed, spindle speed, drill material and reinforcement percentage was defined for low thrust force and low burr height. Confirmation experiments showed that the Drilling Parameters in the Drilling of hybrid metal matrix composites are precisely optimized.
-
Drilling Parameter optimization of metal matrix composites lm5 zro2 using taguchi technique
Materials Today: Proceedings, 2020Co-Authors: Jebarose S Juliyana, Udaya J PrakashAbstract:Abstract Metal matrix composites (MMCs) contain hard ceramic particles are difficult to machine due to their abrasive nature. It is necessary to develop a suitable technology for the efficient machining of MMCs because of their potential widespread usage. An attempt is made to find out the best machining Parameters in the Drilling of (LM5/ZrO2) using Taguchi Technique. A novel composite made of LM5 aluminum alloy reinforced with Zirconia with three different weight percentages (3, 6 & 9%) was fabricated by stir casting process. In the fabricated composite material the influence of input Parameters like feed rate, spindle speed, drill material and percentage of reinforcement on the thrust force is determined by performing Drilling operation in CNC machine using L27 Orthogonal array. The analysis was done using Taguchi’s Signal-to-Noise ratio analysis. Response graphs are used to analyze the response characteristics of the parametric results. Analysis of Variance (ANOVA) was performed to classify the relevant variables and measure their effect on response characteristics. Spindle Speed and Feed rate are the most important input Parameters for obtaining minimum thrust force.
E Kilickap - One of the best experts on this subject based on the ideXlab platform.
-
review optimization of cutting Parameters on delamination based on taguchi method during Drilling of gfrp composite
Expert Systems With Applications, 2010Co-Authors: E KilickapAbstract:Drilling of glass fibre reinforced plastic (GFRP) composite is substantially different from metallic materials due to its mechanical properties. The Drilling of this material may generate delamination of drilled holes on workpiece. The purpose of this paper is to investigate the influence of the cutting Parameters, such as cutting speed and feed rate, and point angle on delamination produced when Drilling a GFRP composite. The damage generated associated with Drilling GFRP composites were observed, both at the entrance and the exit during the Drilling. Hence it is essential to obtain optimum cutting Parameters minimizing delamination at Drilling of GFRP composites. Moreover, this paper presents the application of Taguchi method and analysis of variance (ANOVA) for minimization of delamination influenced by Drilling Parameters and drill point angle. The optimum Drilling Parameter combination was obtained by using the analysis of signal-to-noise ratio. The conclusion revealed that feed rate and cutting speed were the most influential factor on the delamination, respectively. The best results of the delamination were obtained at lower cutting speeds and feed rates.
J. Udaya Prakash - One of the best experts on this subject based on the ideXlab platform.
-
Drilling Parameter optimization of metal matrix composites (LM5/ZrO2) using Taguchi Technique
Materials Today: Proceedings, 2020Co-Authors: S. Jebarose Juliyana, J. Udaya PrakashAbstract:Abstract Metal matrix composites (MMCs) contain hard ceramic particles are difficult to machine due to their abrasive nature. It is necessary to develop a suitable technology for the efficient machining of MMCs because of their potential widespread usage. An attempt is made to find out the best machining Parameters in the Drilling of (LM5/ZrO2) using Taguchi Technique. A novel composite made of LM5 aluminum alloy reinforced with Zirconia with three different weight percentages (3, 6 & 9%) was fabricated by stir casting process. In the fabricated composite material the influence of input Parameters like feed rate, spindle speed, drill material and percentage of reinforcement on the thrust force is determined by performing Drilling operation in CNC machine using L27 Orthogonal array. The analysis was done using Taguchi’s Signal-to-Noise ratio analysis. Response graphs are used to analyze the response characteristics of the parametric results. Analysis of Variance (ANOVA) was performed to classify the relevant variables and measure their effect on response characteristics. Spindle Speed and Feed rate are the most important input Parameters for obtaining minimum thrust force.
Dongping Yao - One of the best experts on this subject based on the ideXlab platform.
-
DrillString Vibration With Hole-Enlarging Tools: Analysis and Avoidance
Journal of Energy Resources Technology-transactions of The Asme, 2013Co-Authors: Robello Samuel, Dongping YaoAbstract:In high-risk, high-cost environments, such as ultra-deep waters, refining advanced technologies for the successful completion of wells is paramount. Challenges are still very much associated with complex bottomhole assemblies (BHAs) and with the vibration of the drillstring when used with hole enlarging tools. These tools with complex profiles and designs become additional excitation sources of vibration. The more widespread use of downhole tools for both directional telemetry and logging-while-Drilling (LWD) applications, as part of the front line data acquisition system within the Drilling process, has made reliability a prime area of importance. This paper presents and validates an existing model to predict severe damaging vibrations. It also provides analysis techniques and guidelines to successfully avoid the vibration damage to downhole tools and to their associated downhole assemblies when using hole enlarging tools, such as hole openers and underreamers. The dynamic analysis model is based on forced frequency response (FFR) to solve for resonant frequencies. In addition, a mathematical formulation includes viscous, axial, torsional, and structural damping mechanisms. With careful consideration of input Parameters and the judicious analysis of results, we demonstrated that drillstring vibration can be avoided by determining the three-dimensional vibrational response at selected excitations that are likely to cause them. In addition, the analysis provides an estimate of relative bending stresses, shear forces, and lateral displacements for the assembly used. Based on the study, severe vibrations causing potentially damaging operating conditions that had been a major problem in nearby wells were avoided. Steps required to estimate the operating range of the Drilling Parameter such as weight on bit and rotational speeds to mitigate and avoid the downhole tool failures due to vibration are given. Extensive simulations were performed to compare the data from the downhole vibration sensors; this paper includes severe vibration incidence data from three case studies in which the model estimated, predicted, and avoided severe vibration (Samuel, R., et al., 2006, “Vibration Analysis Model Prediction and Avoidance: A Case History,” Paper SPE 102134 Presented at the IADC India Conference, Mumbai, India, Oct. 16–18; Samuel, R., 2010, “Vibration Analysis for Hole Enlarging Tools” SPE 134512, Annual Technical Conference, Florence, Italy).
