International Journal of Engineering Research and, 2015
Business objectives are mainly, long term growth and profitability that can happen only by increa... more Business objectives are mainly, long term growth and profitability that can happen only by increasing in the productivity. Frequent machine breakdown, high changeover time, and high manufacturing cost are becoming great threat. The author's main aim to keep up the Research is to improve OEE to meet customer's increasing demands without addition of capacity thus meeting business goals. This document demonstrates the need to overcome most of bottleneck of equipment's unavailability for resources utilization and to run the process more effectively. Improvement in OEE was possible through reducing the changeovers and cycle time and developing the workforce culture align to the focused improvements. The outcome of this Research may expect to have marked improvement in productivity with best utilization of the capacity along with right quality product, at right time.
International Journal of Advanced Engineering Research and Science, 2016
This article focuses on overview of Rapid prototyping application in Medical Science. Study cover... more This article focuses on overview of Rapid prototyping application in Medical Science. Study covers briefing about rapid prototyping along with the medical model preparation and various techniques used in Rapid prototyping. This article covers medical application of rapid prototyping in field of prosthetics and implantation, simulating and planning surgery, tissue engineering, developing medical devices and instrumentation, anthropology, forensic and medical teaching aids. The findings of article are based on case studies and article beneficial to application engineers and medical practitioners.
Automobile makers all over the world are continuously looking for new ways and technique to reduc... more Automobile makers all over the world are continuously looking for new ways and technique to reduce manufacturing costs without scarifying built quality and automotive safety. To improve the performance of the car many companies are trying to reduce the weight of the car so that they can reduce the pollution which will reduce the environmental load substance and workability improvement to enhance the international competitiveness among the competitors. Under such circumstances, steel materials are required to have super high tensile strength and to be able to deal with complex structures of parts with high performance. To fully utilize such advanced steel products, the innovations of welding technologies are necessary and various welding technologies have been developed and applied with the progress of steel materials. This paper briefs about the developments and the actual applications of state-of-the-art in welding technologies. Keywords-STT, Friction stir, Friction welding
In developing countries like India, cooking is mainly considered as responsibility of women, who ... more In developing countries like India, cooking is mainly considered as responsibility of women, who spend a substantial amount of their time in preparing food for their families. Cooking is done by using traditional practices like chulha in villages and modern practices like Induction cooktop, LPG burners in cities. The proportion comparison shows chulha are greatly used with biomass fuel like wood log, crop residue, and cow dung as fuel. Cooking using biomass leads to soot, soot, haze, dust, black smoke, black carbon, fine particles, and ultrafine particles as by-product. These by-product leads to environmental pollution and along it is also harmful to human beings causing lungs diseases. In order to minimize environmental pollution and too lungs diseases it is prime important to utilize fuel in more efficient way minimizing pollution and maximizing heat produced. This paper, focuses mainly on the role of cook stoves in reducing emissions, eliminating drudgery, and improving overall q...
International journal of performability engineering, 2017
Opting right alternative between numerous alternatives is really complicated decision, which beco... more Opting right alternative between numerous alternatives is really complicated decision, which becomes more complex when alternatives are conflicting in nature and there is minor difference among alternatives. Complexity in decision making can be minimized if analytical methods are used for selection of alternatives. In everyday life, we often have to make decisions and several times we come across circumstances where the decision to make is selection of best alternative among various alternatives. This paper demonstrates application of Fuzzy Analytical Hierarchical Process approach integrated with Grey Relation Analysis to select the best car among various cars available in the market taking into consideration all the required qualitative and quantitative decision aspects.
Laser beam cutting (LBC) is a most predominantly used non-traditional cutting process to cut desi... more Laser beam cutting (LBC) is a most predominantly used non-traditional cutting process to cut desired shapes out of sheet metals, plates, sections and boxes with greater accuracy at least time. The criticality in this process is its complexity in cutting non ferrous materials due to their lesser absorption rate of the laser beam. Continuous wave CO2 laser and pulsed Nd:YAG laser are the most commonly used methods for cutting of non ferrous metal sheets. This experiment investigates the effect of input parameters Laser power (kW), Cutting speed (m/min), Assist gas pressure (bar) and Nozzle standoff distance (mm) on different responses like surface roughness (Ra in μm), kerf width (Kw in mm), dimensional deviation (Dd in mm) and hole diameter (Hd in mm). This entire experiment is designed using Taguchi L9 Orthogonal Array (OA) technique. The data collected are analyzed with the aid of Multiple Regression Analysis (MRA) and Grey Relational Analysis (GRA). The optimized results obtained ...
International Journal of Engineering Research and, 2015
Business objectives are mainly, long term growth and profitability that can happen only by increa... more Business objectives are mainly, long term growth and profitability that can happen only by increasing in the productivity. Frequent machine breakdown, high changeover time, and high manufacturing cost are becoming great threat. The author's main aim to keep up the Research is to improve OEE to meet customer's increasing demands without addition of capacity thus meeting business goals. This document demonstrates the need to overcome most of bottleneck of equipment's unavailability for resources utilization and to run the process more effectively. Improvement in OEE was possible through reducing the changeovers and cycle time and developing the workforce culture align to the focused improvements. The outcome of this Research may expect to have marked improvement in productivity with best utilization of the capacity along with right quality product, at right time.
International Journal of Advanced Engineering Research and Science, 2016
This article focuses on overview of Rapid prototyping application in Medical Science. Study cover... more This article focuses on overview of Rapid prototyping application in Medical Science. Study covers briefing about rapid prototyping along with the medical model preparation and various techniques used in Rapid prototyping. This article covers medical application of rapid prototyping in field of prosthetics and implantation, simulating and planning surgery, tissue engineering, developing medical devices and instrumentation, anthropology, forensic and medical teaching aids. The findings of article are based on case studies and article beneficial to application engineers and medical practitioners.
Automobile makers all over the world are continuously looking for new ways and technique to reduc... more Automobile makers all over the world are continuously looking for new ways and technique to reduce manufacturing costs without scarifying built quality and automotive safety. To improve the performance of the car many companies are trying to reduce the weight of the car so that they can reduce the pollution which will reduce the environmental load substance and workability improvement to enhance the international competitiveness among the competitors. Under such circumstances, steel materials are required to have super high tensile strength and to be able to deal with complex structures of parts with high performance. To fully utilize such advanced steel products, the innovations of welding technologies are necessary and various welding technologies have been developed and applied with the progress of steel materials. This paper briefs about the developments and the actual applications of state-of-the-art in welding technologies. Keywords-STT, Friction stir, Friction welding
In developing countries like India, cooking is mainly considered as responsibility of women, who ... more In developing countries like India, cooking is mainly considered as responsibility of women, who spend a substantial amount of their time in preparing food for their families. Cooking is done by using traditional practices like chulha in villages and modern practices like Induction cooktop, LPG burners in cities. The proportion comparison shows chulha are greatly used with biomass fuel like wood log, crop residue, and cow dung as fuel. Cooking using biomass leads to soot, soot, haze, dust, black smoke, black carbon, fine particles, and ultrafine particles as by-product. These by-product leads to environmental pollution and along it is also harmful to human beings causing lungs diseases. In order to minimize environmental pollution and too lungs diseases it is prime important to utilize fuel in more efficient way minimizing pollution and maximizing heat produced. This paper, focuses mainly on the role of cook stoves in reducing emissions, eliminating drudgery, and improving overall q...
International journal of performability engineering, 2017
Opting right alternative between numerous alternatives is really complicated decision, which beco... more Opting right alternative between numerous alternatives is really complicated decision, which becomes more complex when alternatives are conflicting in nature and there is minor difference among alternatives. Complexity in decision making can be minimized if analytical methods are used for selection of alternatives. In everyday life, we often have to make decisions and several times we come across circumstances where the decision to make is selection of best alternative among various alternatives. This paper demonstrates application of Fuzzy Analytical Hierarchical Process approach integrated with Grey Relation Analysis to select the best car among various cars available in the market taking into consideration all the required qualitative and quantitative decision aspects.
Laser beam cutting (LBC) is a most predominantly used non-traditional cutting process to cut desi... more Laser beam cutting (LBC) is a most predominantly used non-traditional cutting process to cut desired shapes out of sheet metals, plates, sections and boxes with greater accuracy at least time. The criticality in this process is its complexity in cutting non ferrous materials due to their lesser absorption rate of the laser beam. Continuous wave CO2 laser and pulsed Nd:YAG laser are the most commonly used methods for cutting of non ferrous metal sheets. This experiment investigates the effect of input parameters Laser power (kW), Cutting speed (m/min), Assist gas pressure (bar) and Nozzle standoff distance (mm) on different responses like surface roughness (Ra in μm), kerf width (Kw in mm), dimensional deviation (Dd in mm) and hole diameter (Hd in mm). This entire experiment is designed using Taguchi L9 Orthogonal Array (OA) technique. The data collected are analyzed with the aid of Multiple Regression Analysis (MRA) and Grey Relational Analysis (GRA). The optimized results obtained ...
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Papers by Nagaraj Raikar