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Books > Professional & Technical > Mechanical engineering & materials > Production engineering
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Rapid Prototyping - Laser-based and Other Technologies (Paperback, Softcover reprint of the original 1st ed. 1998)
Loot Price: R4,604
Discovery Miles 46 040
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Rapid Prototyping - Laser-based and Other Technologies (Paperback, Softcover reprint of the original 1st ed. 1998)
Expected to ship within 10 - 15 working days
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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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