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An Environmental Impact Comparison of Distributed and Centralized Manufacturing Scenarios
Abstract:
Centralized manufacturing and distributed manufacturing are two fundamentally different methods for producing components. This work describes a centralized manufacturing scenario in which parts are produced via forging and finish machining at one central location and are then shipped to the end user. The distributed manufacturing model involves a scenario in which an additive manufacturing process (Electron Beam Melting) is used to produce parts to near net shape with minimal finish machining. Because the process doesn’t require molds or dies, production can take place in small production quantities “on demand” at job shops located close to the end user with little transportation. This is in stark contrast to the centralized model where large quantities of parts are produced and then distributed at a later date when needed from warehouses. The aim of this research is to compare the environmental impact of these two different production approaches under a variety of conditions. The SimaPro software has been used model both approaches with input from the user involving part size, amount of finish machining, transportation distances, mode of transportation, production quantities, etc.
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Pages:
1449-1453
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Online since:
February 2014
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