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Technology of machine tools
The use of computers continues to change how ma¬chine tools are used to manufacture products. Com¬puters have improved until there are now highly sophisticated units capable of controlling the opera¬tion of a single machine, a group of machines, or even a complete manufacturing plant. Section 14, "Computer-Age Machining," now includes not only computer numerical control machine tools, such as turning and machining centers, but also newer man¬ufacturing technologies. To increase manufacturing productivity, machine tools have been equipped with modular tooling and work-holding systems, as well as new cutting tools to produce accurate parts faster and at competitive prices.
Today's industries are putting more emphasis on using new manufacturing technologies and manufac-turing intelligence systems to improve their produc¬tivity and remain competitive in the world. Section 14 gives an overview of 10 technologies or processes that are giving manufacturers an advantage over their competition. A few of these are Artificial Intelligence, Open Architecture CNC, Step NC, Virtual Reality, e-Manufacturing, Nanotechnology, and Cyber Manage¬ment Systems. Through the use of CDs and videotapes, students can learn how the machine tool trade will be changing in the future.
This book is based on the authors' many years of trade experience and experience as specialists in teaching. To keep up-to-date with technological change, the authors have researched the latest tech¬nical information available and have visited indus¬tries that are leaders in their field. Key personnel in manufacturing firms and leading educators reviewed many sections of this book, so that accurate and up-to-date information is presented. The authors are grateful to the reviewers for the technical and practi¬cal suggestions that were incorporated into the text.
The business and manufacturing world today is very different from what it was as little as 5 or 10 years ago. Ever more highly productive advanced technology and global competition are the driving forces behind this never-ending change. It seems that new technological developments are occurring every month, and the days when we used to do the same thing month after month are gone.
Globalization and the fierce competition it has brought have created a need for industry to produce high-quality products quickly and at less cost. This is a real challenge for some industries that have not kept pace with the constant-changing technology and that still hope 5- to 10-year-old technology will keep them in business. In order to survive, we must de¬velop and use manufacturing systems that produce better products, faster, and at lower cost than our competitors. These highly productive systems are available to anyone in the world. Those companies that use them first are very likely to survive, while those that do not will gradually fade away.
The purposes of this text are to assist instructors in providing the basic training on conventional ma-chine tools; to cover basic programming for CNC machines (such as turning and machining centers); and to introduce new manufacturing technologies and processes. To make this course interesting and challenging for students, videotapes can be used to cover new technologies. They are available on loan or | for a small fee from technical societies, manufactur¬ers, and publishers. The instructor's manual includes sources of videotapes, along with answers to the review questions in the text. A student workbook is also available.
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