The Pros And Cons Of 3D Printing

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INDUSTRIAL REVOLUTION: ARMY PRODUCTION
INTRODUCTION
The Economist (2012) titled its article about 3D printing as ‘The Third Industrial Revolution’, implying that 3D technology has a potential to do so. Will it really be happen? The answer remains to be seen, but considering the capabilities of 3D technology, it seems absolute. When we look back to history, wheel, steam engine, and light bulb were all breakthroughs that shaped the way societies lived. In the 21th century, 3D printing is the biggest nominee for the title of new ‘breakthrough’ or ‘game changer’. Taking into account the varieties of products that are the harvest of 3D printers, 3D printing has already deserved that title and changed many traditional production rules. 3D printing or AM is used not only in civilian logistics but also in military applications. Although it has some implications and drawbacks, 3D printing provides great opportunities for humanity, if used correctly. On one hand, it can reduce costs and help us to gain more; on the other hand it can save the lives of people who are in need of urgent medical help.
What is 3D Printing?
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(Connor M. McNulty, 2012) American Society for Testing and Materials defines AM as the process of producing three-dimensional object from geometrical 3D data through the layer-by-layer addition (Wohlers Associates, 2010). Actually the main idea behind 3D printing is not different from that of 2D (common) printing. In both of the printing processes, data is provided to a printer via computer and then printer turns it to a form that we
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