An Adaptive Step Nc Interpreter For Feature Based Machining On Emco Mill
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An Adaptive Step Nc Interpreter For Feature Based Machining On Emco Mill
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Author : Pingzeshi He
language : en
Publisher:
Release Date : 2014
An Adaptive Step Nc Interpreter For Feature Based Machining On Emco Mill written by Pingzeshi He and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Machine-tools categories.
Computer numerical controlled (CNC) machine tools have been developed for machining parts with complex shapes since the 1950s. The data model stipulated by ISO (International Organisation for Standardisation) 6983, otherwise known as G-code, was developed to program and control such machine tools. This standard has led to a bottle neck situation of total Computeraided Design (CAD)/Computer-aided Manufacturing (CAM) integration and data exchange between different parties. The development of ISO10303, commonly known as STandard of Exchange of Product model data (STEP), has shown true benefits and possibilities in terms of standard form of data exchange among the whole product process chain. However, this still left a gap of data transmission between CAD/CAM systems and CNCs in order to achieve a total interoperable manufacturing environment, hence, the development of ISO 14649 (STEP-NC). Unlike G-code, STEP-NC specifies the machining processes based on the machining features. The information contained in a STEP-NC file can be transferred to an intelligent controller in order to create the suitable tool-path based on the parameters available. Since the tool-path generation is achieved by the controller and STEP-NC provides high-level data in a formal standardized data format, it becomes totally transferable across different systems. Researchers have focused on different ways to enable deployment of STEP-NC standard on modern CNC architecture. The indirect programming environment was developed based on the lowest level of integration between STEP-NC and CNC machine which provided limited advantages over G-code. The interpreted programming environment integrates STEP-NC data with CNCs at a deeper level. Instead of using a G-code program, the controller takes cutter location (CL) commands directly in order to perform the required machining tasks. The adaptive programming environment is considered the ultimate solution for STEP-NC enabled CNC machining. In this case, the controller is intelligent enough to process STEP-NC files and generate the process data necessary to perform the machining. Based on the three levels of enabling integrations between STEP-NC and modern CNCs, the interpreted programming method was considered in this research. Because it is conducive to emerge the advantages of STEP-NC concept, and show how manufacturing industries can quickly adopt STEP-NC. In this research, an EMCO Concept Mill 105 with a remote control station was chosen. The CNC machine was connected with the remote control station by an Ethernet cable. The program running on the remote control station was WinNC running in a Windows XP environment. In order to directly program the EMCO Concept Mill 105 and prove STEP-NC data model's capabilities for adaptive and intelligence control, investigation of STEP-NC data model was carried out and method of automatically processing a STEP-NC (Part 21) file was developed. The network communication management method between the CNC machine and the control station was inherited from previous research achievements. The outcome of this research was a "plug and play" software program called "Adaptive STEP-NC Interpreter" which was capable of processing STEP-NC (Part 21) files and generating tool-path data based on the available cutting tool information. The program was also capable to re-schedule the operation sequences to achieve a minimum machining time for machining some of the STEP-NC features, e.g. plannar_face, closed_pocket and round_hole. For further study, a more user-friendly interface is to be designed as well as algorithms to handle the rest of the STEP-NC features. In addition, the ability of automatically extracting and processing the available cutting tool information from the CNC machine is to be further investigated. It is a necessary input for the system to optimise tool-path generation and operation sequences with a goal of achieving the maximum manufacturing efficiency.
Learning Factories
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Author : Eberhard Abele
language : en
Publisher: Springer
Release Date : 2018-10-10
Learning Factories written by Eberhard Abele and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-10 with Technology & Engineering categories.
This book presents the state of the art of learning factories. It outlines the motivations, historic background, and the didactic foundations of learning factories. Definitions of the term learning factory and a corresponding morphological model are provided as well as a detailed overview of existing learning factory approaches in industry and academia, showing the broad range of different applications and varying contents. Learning factory best-practice examples are presented in detailed and structured manner. The state of the art of learning factories curricula design and their use to enhance learning and research as well as potentials and limitations are presented. Further research priorities and innovative learning factory concepts to overcome current barriers are offered. While today numerous learning factories have been built in industry (big automotive companies, pharma companies, etc.) and academia in the last decades, a comprehensive handbook for the scientific community and practitioners alike is still missing. The book addresses therefore both researchers in production-related areas, that want to conduct industry-relevant research and education, as well as managers and engineers in industry, who are searching for an effective way to train their employees. In addition to this, the learning factory concept is also regarded as an innovative learning concept in the field of didactics.
Cybernetic Revolutionaries
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Author : Eden Medina
language : en
Publisher: MIT Press
Release Date : 2014-01-10
Cybernetic Revolutionaries written by Eden Medina and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-10 with Computers categories.
A historical study of Chile's twin experiments with cybernetics and socialism, and what they tell us about the relationship of technology and politics. In Cybernetic Revolutionaries, Eden Medina tells the history of two intersecting utopian visions, one political and one technological. The first was Chile's experiment with peaceful socialist change under Salvador Allende; the second was the simultaneous attempt to build a computer system that would manage Chile's economy. Neither vision was fully realized—Allende's government ended with a violent military coup; the system, known as Project Cybersyn, was never completely implemented—but they hold lessons for today about the relationship between technology and politics. Drawing on extensive archival material and interviews, Medina examines the cybernetic system envisioned by the Chilean government—which was to feature holistic system design, decentralized management, human-computer interaction, a national telex network, near real-time control of the growing industrial sector, and modeling the behavior of dynamic systems. She also describes, and documents with photographs, the network's Star Trek-like operations room, which featured swivel chairs with armrest control panels, a wall of screens displaying data, and flashing red lights to indicate economic emergencies. Studying project Cybersyn today helps us understand not only the technological ambitions of a government in the midst of political change but also the limitations of the Chilean revolution. This history further shows how human attempts to combine the political and the technological with the goal of creating a more just society can open new technological, intellectual, and political possibilities. Technologies, Medina writes, are historical texts; when we read them we are reading history.
9th Wceam Research Papers
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Author : Joe Amadi-Echendu
language : en
Publisher: Springer
Release Date : 2015-03-18
9th Wceam Research Papers written by Joe Amadi-Echendu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-18 with Technology & Engineering categories.
Engineering asset management encompasses all types of engineered assets including built environment, infrastructure, plant, equipment, hardware systems and components. Following the release of ISO 5500x set of standards, the 9th WCEAM addresses the hugely important issue of what constitutes the body of knowledge in Engineering Asset Management. Topics discussed by Congress delegates are grouped into a number of tracks including strategies for investment and divestment of assets, operations and maintenance of assets, assessments of assets condition, risk and vulnerability, technologies and systems for management of asset, standards, education, training and certification. These proceedings include a sample of the wide range of topics presented during the 9th World Congress on Engineering Asset Management in Pretoria South Africa 28 – 31 October, 2014 and complements other emerging publications and standards that embrace the wide ranging issues concerning the management of engineered physical assets.
Integral Structural Polymer Foams
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Author : Fyodor A. Shutov
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Integral Structural Polymer Foams written by Fyodor A. Shutov and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Technology & Engineering categories.
Integral, or structural, foams are one of the most remarkable materials that have been developed over the last fifteen years. As with all rapidly growing fields, the terminology seems to have grown even faster. Thus there are two names for the material structure itself. In the United States and in Japan the term for these plastics is Structural Foams, whereas in Europe and the USSR the term used is usually Integral Foams. We have adhered to the European term in the text and hope our colleagues will bear with us. Integral foams have a specific structure: a cellular core that gradually turns into a solid skin. The skin gives the part its form and stiffness, while the cellular core contributes to the very high strength-to-weight values of the material. These are higher than those of some unfoamed plastics and metals. The sandwich-like structure with its unique mechanical properties was prompted by nature. Wood and bone are strong and light-weight natural materials having a cellular structure. Since the sandwich-like structure of the integral foams resembles that of natural wood, the foams are often referred to as artifical wood or plastic wood, thereby emphasizing not only the formal structural similarity of these materials, but also one of the main functional applications of integral foams - replacement of wooden articles in various fields of engineering and construction.
Oxygen Transport To Tissue Xxvi
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Author : Paul Okunieff
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-06-18
Oxygen Transport To Tissue Xxvi written by Paul Okunieff and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-06-18 with Science categories.
The International Society of Oxygen Transport to Tissue (ISOTT) was founded in 1973 to provide a forum for bioengineers, basic scientists, physiologists, and physicians to discuss new data, original theories, new interpretations of old data, and new technologies for the measurement of oxygen. At each annual meeting all posters are presented orally along with plenary lectures, and all presentations are given in a general session attended by everyone. Each meeting has had a specific focus, ranging from neonatology to physical chemistry to cancer biology. The Society has helped to build many careers, through opportunities to meet leaders in the field, and through awards made to young physicians and scientists. The Society also, through cross fertilization of ideas and scientific comradery, has inspired many breakthroughs in clinical medicine that now benefit mankind. I find myself president of the society after having been a winner of the Melvin Knisely Award for young scientists, in 1991. The 2003 meeting emphasized the role of oxygen and oxygen measurement in tumor growth, metastasis, physiology, and treatment resistance. Additionally, however, completely novel approaches to measurement of tissue oxygen were presented (notably work by Dr. Takahashi) and molecular methods for estimating tissue oxygen were evaluated. Papers discussing other aspects of oxygen measurement and pathophysiology were presented including in vivo ESR spectroscopy (notably including Dr. Swartz and colleagues), exercise physiology, organ transplant outcome (discussed by Dr. Cicco, our 2004 president), circulatory physiology, and cerebral oxygenation (notably including Dr. Chance).
Robotics And Factories Of The Future
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Author : S.N. Dwivedi
language : en
Publisher: Springer
Release Date : 1984-12
Robotics And Factories Of The Future written by S.N. Dwivedi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984-12 with Business & Economics categories.
An International Conference on Robotics and Factories of the Future was held on December 4-7, 1984 in Charlotte, North Carolina, USA. The development of technology and the status as it stands today is highly multidisciplinary and complex in nature. It has added new dimensions and challenges in the development of factories of the future. Thus it calls upon an integrated approach of technological, economic and sociological impacts of robots and computers in factories of the future. Sessions in this conference included: Planning of Automation, Future Trends & Management, Integration of CAD/CAM & Robot Cell, Robots Applications, Manipulation I, Controls I, Manipulation II, Computer Vision and Sensors, Robot Cell and Mobile Robot, Controls II, Artificial Intelligence, Advanced Applications of Robots, Industrial Panel, CAD/CAM and Flexible Manufacturing, Robotics and CAD/CAM Education I, Social and Economic Implications, Robotics and CAD/CAM Education II, and Industry and User Interaction. 142 papers were presented during the conference and participants came from 18 countries. The plenary session and keynote speakers were: J. M. Kelly, IBM Quality Institute, Southbury, Connecticut; M. E. Merchant, Metcut Research, Cincinnati, Ohio; Stellio Demark, ASEA Robotics, Milwaukee, Wisconsin; Stanley J. Polcyn, Unimation Inc., Danbury, Connecticut; Carl Ruoff,Jet Propulsion Lab, Pasadena, California; Joseph Tulkoff, Lockheed Georgia Company, Marietta, Georgia; N. M. Swani, Indian Institute of Technology, Delhi, India; James R. Barrett, Computer Vision, Bedford, Maryland; Hadi A. Akeel, GMF Robotics, Troy, Michigan; John M.
Algal Technologies For Wastewater Treatment And Resource Recovery
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Author : Raul Muñoz
language : en
Publisher: IWA Publishing
Release Date : 2019-07-26
Algal Technologies For Wastewater Treatment And Resource Recovery written by Raul Muñoz and has been published by IWA Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-26 with Science categories.
Over 80% of globally produced wastewater receives little or no treatment before it is disposed into the environment. Therefore, it is urgent to develop new wastewater treatment technologies that are sustainable in the broad sense of the word, i.e. not only produce high quality effluents, but also minimise energy expenses, recover energy and nutrients, and apply technology that is appropriate in relation to the availability of skilled personnel. This book compiles the main outcomes of recent efforts to improve the design of waste stabilisation ponds, and confirms the superior performance of high rate algal ponds as a result of process intensification. Anaerobic digestion devoted to biogas production continues to be the preferred strategy for the energy valorisation of the algal biomass, co-digestion with multiple high C/N ratio substrates gathering significant attention over the past years. The potential of algal biomass as a biosorbent for heavy metal removal (Cu, Ni, F) maintains its share in the research field of water bioremediation, while research on nutrient removal has focused on providing new insights on the mechanism of nitrogen and phosphorus removal from wastewater in algal–bacterial systems. Finally, it is worth noticing that breakthroughs in complementary fields of research such as nanotechnology or lighting technology are gradually being implemented in algal biotechnology, with new products such as nanoparticles for water disinfection or photobioreactors illuminated by low intensity LED panels. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.
Handbook Of Paper And Board
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Author : Herbert Holik
language : en
Publisher: John Wiley & Sons
Release Date : 2013-03-25
Handbook Of Paper And Board written by Herbert Holik and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-25 with Technology & Engineering categories.
Papermaking is a fascinating art and technology. The second edition of this successful 2 volume handbook provides a comprehensive view on the technical, economic, ecologic and social background of paper and board. It has been updated, revised and largely extended in depth and width including the further use of paper and board in converting and printing. A wide knowledge basis is a prerequisite in evaluating and optimizing the whole process chain to ensure efficient paper and board production. The same is true in their application and end use. The book covers a wide range of topics: * Raw materials required for paper and board manufacturing such as fibers, chemical additives and fillers * Processes and machinery applied to prepare the stock and to produce the various paper and board grades including automation and trouble shooting * Paper converting and printing processes, book preservation * The different paper and board grades as well as testing and analysing fiber suspensions, paper and board products, and converted or printed matters * Environmental and energy factors as well as safety aspects. The handbook will provide professionals in the field, e. g. papermakers as well as converters and printers, laymen, students, politicians and other interested people with the most up-to-date and comprehensive information on the state-of- the-art techniques and aspects involved in paper making, converting and printing.
History Of Early Small And Other U S Soybean Crushers
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Author : William Shurtleff; Akiko Aoyagi
language : en
Publisher: Soyinfo Center
Release Date : 2020-09-27
History Of Early Small And Other U S Soybean Crushers written by William Shurtleff; Akiko Aoyagi and has been published by Soyinfo Center this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-27 with Business & Economics categories.
The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographical index. 115 photographs and illustrations - many color. Free of charge in digital PDF format.