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Definition
Specific energy is defined as the ratio of the energy required for the processing of a unit volume of material. It is a very important parameter, especially for the machining processes, and can be used as metric of comparing the energy requirements between different manufacturing processes. It has been defined in detail for almost all conventional manufacturing processes and research has been focused in estimating this in detail (indicatively for grinding process, Mishra and Salonitis 2013 calculated empirically the specific energy for grinding processes).
Specific energy can be defined for non-conventional manufacturing processes as well. Electrophysical and chemical processes are in general material removal processes. Specific energy (SE) is defined in their case as the ratio of the required energy (E) for removing a specific volume of material, to the volume of material removed (V):
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Salonitis, K., Fysikopoulos, A., Paralikas, J., Chryssolouris, G. (2019). Specific Energy. In: Chatti, S., Laperrière, L., Reinhart, G., Tolio, T. (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53120-4_16776
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DOI: https://doi.org/10.1007/978-3-662-53120-4_16776
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