Rapid Prototyping: Laser-based and Other Technologies

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Springer US, Nov 30, 2003 - Technology & Engineering - 162 pages
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Since the dawn of civilization, mankind has been engaged in the conception and manufacture of discrete products to serve the functional needs of local customers and the tools (technology) needed by other craftsmen. In fact, much of the progress in civilization can be attributed to progress in discrete product manufacture. The functionality of a discrete object depends on two entities: form, and material composition. For instance, the aesthetic appearance of a sculpture depends upon its form whereas its durability depends upon the material composition. An ideal manufacturing process is one that is able to automatically generate any form (freeform) in any material. However, unfortunately, most traditional manufacturing processes are severely constrained on all these counts. There are three basic ways of creating form: conservative, subtractive, and additive. In the first approach, we take a material and apply the needed forces to deform it to the required shape, without either adding or removing material, i. e. , we conserve material. Many industrial processes such as forging, casting, sheet metal forming and extrusion emulate this approach. A problem with many of these approaches is that they focus on form generation without explicitly providing any means for controlling material composition. In fact, even form is not created directly. They merely duplicate the external form embedded in external tooling such as dies and molds and the internal form embedded in cores, etc. Till recently, we have had to resort to the 'subtractive' approach to create the form of the tooling.

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About the author (2003)

Patri K. Venuvinod is a technology-academic with extensive international experience. Educated at College of Engineering, Osmania_University, Hyderabad, and Indian Institute of Technology Bombay, Venuvinod has a PhD from University of Manchester Institute and Science and Technology (UMIST), U.K.. Subsequently, he was elected as a Fellow of CIRP, Institution of Electrical Engineers (UK), and Hong Kong Institution of Engineers; and Senior Member of Institute of Industrial Engineers. Venuvinod's 37-year teaching career included long stints at Regional Engineering College, Warangal, India; Hong Kong Polytechnic; and City University of Hong Kong. At the last institute, he was the founding Head of the Department of Manufacturing Engineering and Engineering Management. He also became the university's Chair professor of Manufacturing. During his 25-year stay in Hong Kong he frequently visited mainland China to collaborate on several projects. Venuvinod retired from active service in 2002. However, he continues to be associated with City University of Hong Kong as an Emeritus Professor. In 2004, he co-authored a book on rapid prototyping (published by Kluwer Academic Publishers Kluwer Academic Publishers. In 2001, he founded the International Organization for Developing Universities (IODevUni) which engaged over 22 engineering colleges in Hyderabad, India, in a range of activities promoting the growth of technology, innovation and entrepreneurship (TIE). In 2010 he set up tecinnovent.com to strengthen such activities and publicize TIE-related publications such as his trilogy on TIE of which this book constitutes Part III. Venuvinod welcomes participation in the discussions at tecinnovent.com. There are many ways you can participate, e.g., commenting on TIE-related books including the present one, offering teaching support material (e.g., local case studies), initiating discussions directed towards promoting the growth of Technology, Innovation, and Entrepreneurship in your region and workplace.

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