Papers by Asaad Ali Abbas
Engineering and Technology Journal
This paper focuses on using Taguchi method to determine the optimum turning parameters such as sp... more This paper focuses on using Taguchi method to determine the optimum turning parameters such as spindle speed, depth of cut, and feed rate, denoted by factor symbols A, B, and C respectively. The effect of cutting parameters on tool wear is depended on the concept of removed weight from the tool metal during machining. The material that has been used as a workpiece is high carbon steel and carbide insert DNMG 443-15 as a cutting tool. Taguchi orthogonal array L 9 , quality characteristic "smaller is better", and ANOVA were used to achieve the goal of the research. The results obtained showed that spindle speed is the significant factor of the process followed by the feed rate in terms of their contribution in analysis. The optimum combination of parameters, which was found by applying Taguchi method, is that designated by A 2 B 1 C 1 .
To sum up, content analysis is a useful research technique for analyzing large bodies of text. It... more To sum up, content analysis is a useful research technique for analyzing large bodies of text. It offers objective guidelines in the coding of the text and to draw inferences from the data. It helps in the coding of the text according to systematic and objective rules and in drawing inferences from the data. A successful content analysis study is the outcome of a series of good decisions. The process starts from the point of deciding whether the method is suitable to study the research topic under question. After clearly setting out the objectives of the study, the researcher proceeds to make decisions relating to units of analysis, developing content categories, sample and the sampling period. Orienting coders, checking inter coder reliabilities and selecting appropriate statistical designs for presenting results are some of the essential tasks, which add rigor to the study.
In this study, the objective is to obtain optimal values of CNC turning parameters (cutting speed... more In this study, the objective is to obtain optimal values of CNC turning parameters (cutting speed, depth of cut and feed rate) which result in an optimal value of surface roughness by machining aluminum shaft. In this work, Taguchi method was carried out on machining of aluminum ENAC-43400 material in dry cutting using CNC turning machine type StarChip 450 equip with carbide cutting tool type DNMG 332. Surface roughness was measured using the POCKET SURF EMD-1500 tester. The results obtained of the surface roughness (Ra) are about (1.14-1.91) μm, and the best was at cutting speed 250 m/min, feed rate 0.05 mm/rev and depth of cut 0.5 mm which is refers to the optimum machining parameters.
Electrical Discharge Machining (EDM) process is a non-traditional cutting for metals removing whi... more Electrical Discharge Machining (EDM) process is a non-traditional cutting for metals removing which is relied upon the basic fact that negligible tool force is produced during the machining process. The most significant factors of the cutting parameters are the material removal rate (MRR), electrode ware rate (EWR).The impact of various parameters such as (current and pulse-on time) are studied on the MRR, EWR in the present research. Five hollow geometric shapes (cylindrical solid, square, triangle, polygon and finally circular) were run by using EDM machine which used for cutting HSS with dielectric solution of translate oil by supplied DC current values (4, 10, and 16A). Voltage of (140V) uses to cut 3mm thickness of the steel and use the five copper electrode shapes. The results show that the electrode hollow square shape is the best electrodes used.
Al-Qadisiyah Journal For Engineering Sciences, 2016
In this study, the objective is to obtain optimal values of CNC turning parameters (cutting speed... more In this study, the objective is to obtain optimal values of CNC turning parameters (cutting speed, depth of cut and feed rate) which result in an optimal value of surface roughness by machining aluminum shaft. In this work, Taguchi method was carried out on machining of aluminum ENAC-43400 material in dry cutting using CNC turning machine type StarChip 450 equip with carbide cutting tool type DNMG 332. Surface roughness was measured using the POCKET SURF EMD-1500 tester. The results obtained of the surface roughness (Ra) are about (1.14-1.91) μm, and the best was at cutting speed 250 m/min, feed rate 0.05 mm/rev and depth of cut 0.5 mm which is refers to the optimum machining parameters.
In an experimental analysis study, a blend of burnishing parameters was varied to obtain their op... more In an experimental analysis study, a blend of burnishing parameters was varied to obtain their optimum values to produce the finest surface integrity in plane surface burnishing process. The physical depth of the micro hardened surface layer was also evaluated at the obtained optimum values of the parameters. The analysis was undertaken on ball burnished plane surface, mild carbon steel M1044, using a milling machine and a purpose designed and manufactured burnishing tool. The effects of burnishing feed and force on both surface smoothness and hardness together and on the depth of the hardened surface layer of the work pieces material were observed and investigated. The results indicated that plane burnished surface finish and hardness improvements of around (89 %) and (70 %) respectively were obtainable at the optimum values of the mentioned parameters. Around 35 µm physical depth of the hardened surface layer was the result at the obtained optimum burnishing force and feed values of about 7.8Kgf and 107 mm/min respectively.
Renewable Energy: Generation and Application - ICREGA’24, 2024
The research paper endeavored to significantly improve the energy efficiency and sustainability o... more The research paper endeavored to significantly improve the energy efficiency and sustainability of the electrode wear rate (EWR) in electric discharge machining (EDM) through a particular exploration of various parameters. These parameters included nano-powder concentration, electric current, and pulse-on time. By systematically analyzing and manipulating these variables, the study aimed to optimize the EDM process, thereby reducing energy consumption and enhancing the overall sustainability of the machining operation. We employed the Powder Mixed Electro-Discharge Machining (PMEDM) technique, a refined iteration of
electric discharge machining. This innovative method blended graphite nano-powder with transformer oil to serve as the dielectric medium. The primary objective of this investigation is to examine the outcomes concerning crucial process parameters such as graphite powder
concentration, electric current, and pulse-on time when machining high-speed steel, focusing mainly on electrode wear rate (EWR). Incorporating nano graphite (Gr) mixed powders into dielectric liquids has demonstrated a discernible enhancement in EWR across diverse operational
conditions. The study found that the electrode wear rate (EWR) varied based on nano-powder concentration, electric current, and pulse-on time. Maximum EWR was observed at a concentration of 10 g/L, a current of 30 A, and a pulse-on time of 70 μs, while minimum EWR occurred at 0 g/L, 10 A, and 60 μs. The Full Factorial design, executed with MINITAB 17 software, validated these findings. The optimal EWR recorded was 1.154 mm3/min. The coefficient of determination (R-sq) for surface roughness prediction also stood at 91.15%.
Eng. & Tech. Journal , 2014
This paper focuses on using Taguchi method to determine the optimum
turning parameters such as sp... more This paper focuses on using Taguchi method to determine the optimum
turning parameters such as spindle speed, depth of cut, and feed rate, denoted by factor symbols A, B, and C respectively. The effect of cutting parameters on tool wear is depended on the concept of removed weight from the tool metal during machining. The material that has been used as a workpiece is high carbon steel and carbide insert DNMG 443-15 as a cutting tool. Taguchi orthogonal array L9, quality characteristic "smaller is better", and ANOVA were used to achieve the goal of the research. The results obtained showed that spindle speed is the significant factor of the process followed by the feed rate in terms of their contribution in analysis. The optimum combination of parameters, which was found by applying Taguchi method, is that designated by A2B1C1.
Global Journal of Engineering Science and Research Management, 2018
Electrical Discharge Machining (EDM) process is a non-traditional cutting for metals removing whi... more Electrical Discharge Machining (EDM) process is a non-traditional cutting for metals removing which is relied upon the basic fact that negligible tool force is produced during the machining process. The most significant factors of the cutting parameters are the material removal rate (MRR), electrode ware rate (EWR).The impact of various parameters such as (current and pulse-on time) are studied on the MRR, EWR in the present research. Five hollow geometric shapes (cylindrical solid, square, triangle, polygon and finally circular) were run by using EDM machine which used for cutting HSS with dielectric solution of translate oil by supplied DC current values (4, 10, and 16A). Voltage of (140V) uses to cut 3mm thickness of the steel and use the five copper electrode shapes. The results show that the electrode hollow square shape is the best electrodes
used.
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Papers by Asaad Ali Abbas
electric discharge machining. This innovative method blended graphite nano-powder with transformer oil to serve as the dielectric medium. The primary objective of this investigation is to examine the outcomes concerning crucial process parameters such as graphite powder
concentration, electric current, and pulse-on time when machining high-speed steel, focusing mainly on electrode wear rate (EWR). Incorporating nano graphite (Gr) mixed powders into dielectric liquids has demonstrated a discernible enhancement in EWR across diverse operational
conditions. The study found that the electrode wear rate (EWR) varied based on nano-powder concentration, electric current, and pulse-on time. Maximum EWR was observed at a concentration of 10 g/L, a current of 30 A, and a pulse-on time of 70 μs, while minimum EWR occurred at 0 g/L, 10 A, and 60 μs. The Full Factorial design, executed with MINITAB 17 software, validated these findings. The optimal EWR recorded was 1.154 mm3/min. The coefficient of determination (R-sq) for surface roughness prediction also stood at 91.15%.
turning parameters such as spindle speed, depth of cut, and feed rate, denoted by factor symbols A, B, and C respectively. The effect of cutting parameters on tool wear is depended on the concept of removed weight from the tool metal during machining. The material that has been used as a workpiece is high carbon steel and carbide insert DNMG 443-15 as a cutting tool. Taguchi orthogonal array L9, quality characteristic "smaller is better", and ANOVA were used to achieve the goal of the research. The results obtained showed that spindle speed is the significant factor of the process followed by the feed rate in terms of their contribution in analysis. The optimum combination of parameters, which was found by applying Taguchi method, is that designated by A2B1C1.
used.
electric discharge machining. This innovative method blended graphite nano-powder with transformer oil to serve as the dielectric medium. The primary objective of this investigation is to examine the outcomes concerning crucial process parameters such as graphite powder
concentration, electric current, and pulse-on time when machining high-speed steel, focusing mainly on electrode wear rate (EWR). Incorporating nano graphite (Gr) mixed powders into dielectric liquids has demonstrated a discernible enhancement in EWR across diverse operational
conditions. The study found that the electrode wear rate (EWR) varied based on nano-powder concentration, electric current, and pulse-on time. Maximum EWR was observed at a concentration of 10 g/L, a current of 30 A, and a pulse-on time of 70 μs, while minimum EWR occurred at 0 g/L, 10 A, and 60 μs. The Full Factorial design, executed with MINITAB 17 software, validated these findings. The optimal EWR recorded was 1.154 mm3/min. The coefficient of determination (R-sq) for surface roughness prediction also stood at 91.15%.
turning parameters such as spindle speed, depth of cut, and feed rate, denoted by factor symbols A, B, and C respectively. The effect of cutting parameters on tool wear is depended on the concept of removed weight from the tool metal during machining. The material that has been used as a workpiece is high carbon steel and carbide insert DNMG 443-15 as a cutting tool. Taguchi orthogonal array L9, quality characteristic "smaller is better", and ANOVA were used to achieve the goal of the research. The results obtained showed that spindle speed is the significant factor of the process followed by the feed rate in terms of their contribution in analysis. The optimum combination of parameters, which was found by applying Taguchi method, is that designated by A2B1C1.
used.