Nageswara Rao Posinasetti

Nageswara Rao Posinasetti
University of Northern Iowa | UNI · Department of Technology

Ph D

About

206
Publications
665,639
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
1,160
Citations
Introduction
Educated in Mechanical engineering in India with specialization in manufacturing engineering. Major teaching activities in manufacturing in India, Malaysia and USA over the last 30+ years. Research in various manufacturing and allied disciplines with major emphasis in Metal cutting, computer applications, mathematical modelling and sustainability. Author of a few books that are widely used in India and Asia as textbooks in manufacturing engineering. Planning to retire in a few years’ time.
Additional affiliations
September 2001 - present
University of Northern Iowa
Position
  • Professor (Full)
Description
  • Teaching of degree students, curriculum development, Laboratory development, guiding student projects, guiding research projects, Continuing education programs, and Sponsored Research Programs.
January 1995 - September 2001
Universiti Teknologi MARA
Position
  • Professor (Associate)
Description
  • Teaching of degree students, curriculum development, Laboratory development, guiding student projects, guiding research projects, Continuing education programs, Sponsored Research Programs and establishment of Masters and Ph.D. programs in the faculty.
January 1993 - April 1993
Asian Institute of Technology
Position
  • Visiting Faculty Member
Description
  • Teaching of postgraduate degree students, curriculum development, in the division.
Education
June 1979 - July 1979
Central Machine Tool Institute
Field of study
  • Computer Aided Part Programming for NC Machines
July 1976 - May 1981
Indian Institute of Technology Delhi
Field of study
  • Analysis of Boring Bar Vibrations
July 1971 - August 1973
Birla Institute of Technology and Science Pilani
Field of study
  • Mechanical Engineering with specialization in production Engineering

Publications

Publications (206)
Book
Full-text available
What is New in this Edition? Based on the suggestions received, many of the illustrations have been redrawn to improve clarity and ease of understanding by the students. The modifications carried out in the chapters are as follows: • Updated with New Welding Processes like: Ultrasonic Welding, Laser Welding and Slush Casting, Vacuum Casting and Hyd...
Article
The vibrational amplitude is generally large in the case of a boring bar due to its slenderness. A dynamic cutting force model has been presented to take this large amplitude into account. The boring bar is then modelled as a cantilever with this dynamic force acting at the free end and a generalized continuous system model is obtained. This model...
Article
Application of CAD/CAM techniques to injection mould design is feasible and required now in view of the low cost of computers and the need to develop moulds in the shortest possible time. For this purpose a simpler thermal analysis of an injection mould is desirable, as most of the mould makers in Asia are in the category of small manufacturing uni...
Article
Full-text available
Titanium alloys are widely used in aerospace, biomedical, and other engineering areas due to their superior properties. However, machining of titanium alloys has always been a challenge due to the high temperatures and tool wear rates. Dry machining has a limited range of permissible cutting conditions and is hence not suitable for industrial produ...
Article
Full-text available
Wastewater treatment plant (WWTP) reduces environmental load by improving the quality of effluent sewage water. A wastewater treatment plant during its operation, consumes energy for circulation and aeration of water, utilise chemicals such as anti-foaming agents, coagulants and flocculants and release gaseous emissions and solid waste (sludge). It...
Article
Full-text available
This paper presents an experimental machining study of turning medium carbon alloy steel 4140 on Haas CNC turning center with TiC/TiCN/TiN-coated carbide inserts under different lubricating conditions. Cutting speed and feed rate were controlled at three different levels while a constant depth of cut is employed throughout the entire experimental s...
Article
Industrial accidents are grave mishaps that result in injuries and fatalities to people, and damage to property as well as environment. The impact of accident is exorbitant and a society has to pay for decades. In most of the developed countries, wellbeing of people and environment is a top priority. The noble mission for every nation should be to...
Chapter
Titanium alloys are used in various applications due to their properties. However, these alloys are difficult to machine. Several techniques have been pro­ posed in the literature to deal with the problem. This paper presents a study on the performance and life cycle analysis of the dry machining, flood lubrication and mini­ mum quantity lubricatio...
Conference Paper
Rapid advances in materials science have prompted the development of materials and alloys of enhanced properties like high strength, hardness, etc. Though these alloys are beneficial in their applications, their machining is difficult. For instance, Inconel 718, a nickel-based alloy, is used in several aerospace applications. This alloy can retain...
Article
Plastic injection moulding is a useful method to produce plastic parts with high-quality surface finish. Improper process parameter settings can cause many production troubles namely defective products, reduce dimensional precision and scrap. Thus, determining the optimal processing parameters is regularly performed in injection moulding industry....
Article
The manufacturing sector is an important contributor to the economy in that it generates well-paid jobs, societal prosperity and economic development. On the other hand, unbalanced manufacturing activities lead to problems such as environment deterioration, climate change and public health issues. Sustainable manufacturing draws more and more atten...
Article
Purpose In the current global manufacturing scenario, all most all major players are now in a position to commit themselves to sustainability in all their operational initiatives and each of them follow their own methodology to attain their goal of sustainability. The purpose of this research article is to assess the sustainable manufacturing prac...
Article
Full-text available
Titanium alloys are widely used in engineering applications due to their superior properties. However, machining of titanium alloys has always been a problem due to high cutting temperatures. Though flood lubrication is a solution, it is not encouraged in sustainable machining. This paper describes a study that used sustainable lubricants in turnin...
Article
Traditionally, cutting fluids are applied in large quantities to reduce the cutting forces and temperatures in machining. However, in view of environmental and occupational health concerns with the conventional cutting fluids, industries are moving towards minimum quantity lubrication (MQL). MQL application is environment-friendly, provides good wo...
Article
In the present study, Polypropylene composites were fabricated by varying different weight percentages (0 to 20%) of alumina powder by using Injection Molding Technique. Then the fabricated composites were characterized by physical characterization such as void content test, chemical characterization such as Fourier-transform infrared spectroscopy,...
Chapter
Cutting fluids are popularly used in machining to reduce cutting forces, temperatures and thus prolong the tool life. However, cutting fluids are complex compounds containing different ingredients some of which are toxic. Constant exposure to these fluids causes severe health hazards to the workers. Further, the disposal of the cutting fluids adds...
Article
Full-text available
t is preferable to detect the leakage status at the earliest phase in the manufacturing process, and then, further assembly of hydraulic components with leakage faults can be avoided. Integrating a USB-based microcontroller and a pressure transducer and also with environmental and safety considerations, this study developed a hydraulic leakage dete...
Article
Sustainability in the development and manufacture of new products is a strategy that is widely accepted in principle, although not yet widely practiced. The integration of environmental requirements throughout the entire lifetime of a product needs a new way of thinking and new decision tools to be applied. This paper describes the concept of an ap...
Chapter
This paper aim to conduct a pilot study in India process industry for sustainable machining process design. A survey questionnaire was framed at five point likert type scale. Respondents were asked to five elements related to sustainable machining process design (SMPD) Fifty responses was collected from various process industries. Simple statistics...
Conference Paper
The aim of this paper to find out the various important issues (Practices) of Sustainable Product returns and Recovery by conducting a survey in Indian Automobile Industry. Survey Instrument was framed on five-point Likert-type scale. Respondents were asked for the different issues related to Sustainable Product returns and Recovery (SPRR). 32 vali...
Article
Massive open online courses (MOOC) have started in 2008 but the interest has really exploded since 2012. The proliferation of MOOCs happened because of the maturing of many of the technologies such as the wide availability of low cost broadband, cheaper laptops, tablets, and smart phones, expanded cellular network, cloud storage and computing and s...
Article
A simulation package has been developed for the design and implementation of the Flexible Manufacturing Systems. The system was made to suit the actual implementation of it in practical FMSs.The system is designed to take up any type of jobs irrespective of their process plans and of the number of operations. In the system developed, the following...
Article
This research integrates environmental concerns in a closed loop supply chain (SC) model to improve overall SC performance in terms of sustainability and business operational metrics. The model includes modular product design for facilitating faster manufacturing, disassembly, remanufacturing, refurbishing, and repairing using new, reusable and rep...
Conference Paper
Machining industry utilizes cutting fluids to increase the performance of the metal cutting process. However, several environmental and health issues limit their usage. Minimum Quantity Lubrication (MQL) with nano cutting fluids is proposed in this paper as a better option for sustainable machining. In the literature, nanofluids are formulated, cha...
Article
Full-text available
Sustainable Manufacturing and operations has become a crucial issue in present scenario for the manufacturing firms. Today manufacturing firms are keen interested to become sustainable in all three aspect economical social and environmental. There are number of manufacturing practices viz. Eco-design, process design, green supply chain, lean practi...
Conference Paper
Full-text available
Optimizing the various parameters in machining has ever been of interest to the community. Though, different models for optimization can be found in literature, all of them are used for dry cutting only. Models considering the cost of cutting fluids and their effect on machining are seldom found. The work presented in this paper provides a mathemat...
Conference Paper
A supply management model that considers a set of green criteria including supply cost drivers is proposed to optimize supply cost and improve green image of the supply chain (SC). Supply cost drivers include quality, quoted cost, and production system used for supplied items. Indirect factors supplier purchaser relationship, using of production pr...
Conference Paper
In the present era of intense competition, manufacturing companies are under increasingly diverse and moulting pressure due to more sophisticated markets, changing customer choice and global competition. Sustainable supply chain management (SSCM) is shorter industrial process chains, particularly geographically well-localized parts of life cycles a...
Conference Paper
Full-text available
In the present era the manufacturing companies in a variety of economic sectors have adopted Lean Practices and in many cases this has enabled them to improve their results and their competitiveness. To become competitive, companies are intended to become sustainable. This study provides the basis of achieving sustainability through lean practices....
Conference Paper
Full-text available
Need: The importance of sustainable manufacturing has grown in recent times because of the realization about the problems associated with the generation of so much waste by the humans due to their industrial activity. Manufacturing has played a major role in the centrality of human existence by creating material wealth for the society. It also cont...
Conference Paper
Full-text available
This panel discussion is relevant if you are preparing for a visitation for ATMAE accreditation or reaccreditation of a program and/or option related to manufacturing, and if you are interested in SME Accreditation Committee activities related to the accreditation globally of manufacturing education programs in engineering, engineering technology,...
Conference Paper
Full-text available
Need: For energy sustainability and reduction in emissions, resource efficiency is one of the critical factors in attaining these objectives. Cutting fluids whose production consumes a large amout of mineral resources are used extensively in metal machining processes to reduce and remove the heat during the machining operations. Methods need to be...
Conference Paper
Full-text available
Need: Tooling cost is a significant part of machining cost. Cutting fluids are extensively used in metal machining processes to enhance machined part quality while reduce machining cost in terms of extended tool life. Currently majority of the existing cutting fluids are petroleum-based products, not only consuming a large amount of mineral resourc...
Data
Full-text available
Educators view 'flipped' model with a more critical eye. Education Week,32(2), s6-s8. 2. Berrett, D. (2012). How 'flipping'the classroom can improve the traditional lecture. The chronicle of higher education,. (2014). The flipped classroom: a course redesign to foster learning and engagement in a health professions school.. Vodcasts and active-lear...
Conference Paper
Sustainability of the environment and the resources that humankind enjoys has become the most important issue in the recent past. Governments all over the world have been enacting laws and taking steps to reduce the degradation of the environment resulting from human activity. This paper presents, from the engineering point of view, the required st...
Data
A schematic of Toyota Production System
Book
Full-text available
A new textbook, Metalcasting Principles & Techniques, from the American Foundry Society (AFS) has been published for college-level undergraduate students. Authors Dr. Yury Lerner, Professor Emeritus of Technology, and Dr. P.N. Rao, Professor of Technology, at the University of Northern Iowa, developed the teaching and lecturing material based on th...
Article
Green manufacturing is a method in which products are produced by consuming less energy and natural resources and being safe to employees, consumers, environment and society. This paper presents an experimental study that compares the machining characteristics when a soy-based cutting fluid and petroleum-based alternate are used in turning medium a...
Conference Paper
Full-text available
The current rate at which humans are utilizing the earth resources is not sustainable and it will be affecting the environment in a number of ways. Responsible behavior for humans is to utilize the available resources in a way such that the environment will not be affected such that future generations of humans will enjoy the same quality of life t...
Book
Full-text available
What is New in this Edition? Although through this book I tried to encompass most of the manufacturing technologies, but not all of them, many educators felt the need to add more depth to make this text suitable for a majority of the Indian universities. So, to that extent, the following changes were made: • All the chapters were thoroughly checked...
Article
Full-text available
Traditionally petroleum based fluids are widely used in the manufacturing industry. However they are environmentally more harmful as well as cause significant problems to the operators. This paper presents a case study that uses an environmentally friendly soybean based cutting fluid. This experimental study compared the tool wear with dry cutting,...
Article
Full-text available
In this paper, the authors present a study that was conducted in an undergraduate research program using experimental tests to evaluate the effectiveness of a soybean-based cutting fluid applied in CNC turning operations. Using two machining performance characteristics, namely surface roughness and tool wear, the study tested the effects of a soybe...
Conference Paper
Full-text available
Nanotechnology has been utilized for more than 2000 years, but its importance has grown in recent times because of the large scale developments in the technologies that aid in the utilization of nanotechnology. Although many of us are not directing our attentions seriously towards nanotechnology, we cannot deny the fact that it is going to be the m...
Conference Paper
Full-text available
Technology, innovation and education are essential to social and economic growth. Lean Manufacturing, green manufacturing processes and green thinking for the complete life cycle of the product will go a long way in ushering green manufacturing. As major players, industrial and academic institutions should synchronize their strengths to promote gre...
Article
Cutting fluids are widely used in metal cutting industries for centuries. To cater the needs of state-of-the-art machining processes, several fluid formulations are available in the present day market. Of such available fluids, water-soluble fluids are prominent. Although the need of cutting fluids is well stressed upon and is much explored, the ro...
Article
Full-text available
Cutting fluids occupied a place of prominence in metal cutting industries for centuries. To cater to the needs of state-of-art machining processes, several fluid formulations are available in the present day market. Of such available fluids, water-soluble fluids occupy a role of prominence. Though the need of cutting fluids is well stressed upon an...
Article
Full-text available
The production of Integrated Circuits (IC) is a detailed and exacting process requiring tight specifications and precise equipment. The high cost and unique traits of this equipment requires high utilization and maximum throughput to achieve real profits. The design of fabrication facility (FAB) processes requires a thorough understanding of the ad...
Article
Full-text available
The Authentic Learning Task (ALT) was initiated by the National Center for Manufacturing Education (NCME) sponsored through a National Science Foundation (NSF) project as a means of studying subject matter through hands on projects. Recently, more and more professors recognize and advocate this method because of better engagement and comprehension...
Conference Paper
Full-text available
Micro Electro Mechanical Systems (MEMS) or simply Microsystems are about tiny micro electro mechanical devices. These devices are finding applications in consumer products such as automobiles, communication devices and medical devices. Microsystems are finding rapid growth in a variety of applications and usage. This prompts the need for a well edu...
Conference Paper
Full-text available
Lean manufacturing is a philosophy to minimize the cost of manufacturing by eliminating waste and non-value-adding activities through various methodologies applied to all activities related to the manufacturing. With globalization, it is imperative that manufacturers find ways to remain competitive by reducing the manufacturing and other costs. In...
Conference Paper
Micro Electro Mechanical Systems (MEMS) or simply the Micro systems are about tiny electro-mechanical devices. These devices are finding their applications in consumer products such as automobiles, communication devices and medical devices. Micro systems are finding rapid growth in their applications and usage. This prompts the need for trained hum...
Article
Metal matrix composites (MMCs) machining is not difficult but presents different machining requirements compared to other materials because of the abrasive characteristics of the reinforced particulates. In order to use these materials for regular production, it is necessary to develop methods by which the machining process can be optimised. The ob...
Conference Paper
Virtual Class Room is currently the subject of academic researchers in distance education and virtual environments. However the conceptualization of virtual class room is not well documented or thoroughly researched. In this paper, the basic information and tools relating to virtual class room design are briefly discussed prior to the presentation...
Article
Full-text available
The microbiological contamination of the cutting fluids over usage and time has been a limitation in their utility, despite the numerous advantages offered. Growth of aerobic bacteria is prominent in the fluids compared to anaerobic bacteria and fungi. Contamination of fluids reduces their effectiveness and also poses a threat to the workers who ar...
Article
Layered manufacturing (LM) is a highly innovative and cost efficient technological tree that has found wide applications in science and industry. Compared to computer numeric controlled (CNC) machining, use of LM leads to the production of a complicated model at significantly lesser time, and no material in the form of chips is wasted. Current LM e...
Article
Process planning for aircraft assembly is a very complex task, dependent upon the experience and domain knowledge of the process planner. Attempts to automate assembly process planning have been largely unsuccessful and it remains a manual activity. As it is a manual activity, methods to reduce the process planning development time are critical for...
Conference Paper
Experiments were conducted by using PCD drills to drill Al 2O 3 particulate reinforced aluminum-based metal matrix composite. Cutting parameters which were considered included cutting speed, feed rate, and volume fraction of reinforcement. The Analysis of Variance (ANOVA), Response Surface Methodology (RSM) were used to analyze experimental data an...
Article
Full-text available
Rapid prototyping has become a mainstream application in major manufacturing industries. A large number of developments taking place in rapid prototyping have allowed it to be extended for regular manufacturing applications in the form of rapid tooling (RT). A large number of applications are benefited by such RT applications. Casting, being one of...
Article
Applications of RT in design and development cycles of new castings drastically decrease the lead-time of new production and considerably reduce the cost of industrial tooling.
Article
Full-text available
Metal matrix composites have been found to be quite useful in a number of engineering applications including the consumer goods. However, the machining of these materials is tough because of the abrasive characteristics of the reinforced particulates. In this paper drilling studies on Al2O3 aluminum-based metal matrix composites have been conducted...
Article
In recent years plastics have found extensive use in the fabrication of important engineering components like gears, piping, etc. The wide application of plastics has led to a rapid development of computer aided design (CAD) and computer aided manufacturing (CAM) techniques for product development. Their application to the design and production of...
Chapter
Developments in the information age have caused the use of computers to spread rapidly throughout the manufacturing arena. With the cost of computing going to ever low levels and increases in its capability going by leaps and bounds, the use of computers has become increasingly important to the manufacturing industries. To this extent, great stride...