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Remanufacturing and Advanced Machining
industry, at a systemic level, encompassing product design, value-chain integration, business models, involving demanufacturing and remanufacturing technologies. Demanufacturing and remanufacturing are fundamental technical solutions
for an efficient and systematic implementation of circular economy that include a
set of technologies and systems, tools and knowledge-based methods to systematically recover, reuse, and upgrade functions and materials from industrial waste and
post-consumer products, to support a sustainable implementation of manufacturercentric circular economy businesses. The authors have derived the following definitions of the main terms related to the CE concept from literature:
Reuse: a generic term covering all operations where a return product is put
back into service, essentially in the same form, with or without repair or
remediation.
Repair: correction of specified faults in a product. Repair refers to actions performed in order to return a product or component to a functioning condition
after a failure has been detected, either in service or after discard.
Remanufacturing for function restore: it returns a used product to at least
its original performance with a warranty that is equivalent to or better than
that of a newly manufactured product. A remanufactured product fulfils a
function similar to the original part. It is remanufactured using a standardized industrial process, in line with technical specifications.
Remanufacturing for function upgrade: the process of providing new functionalities to products through remanufacturing. Remanufacturing with
upgrade aims to extend products’ value life enabling introduction of technological innovation into remanufactured products in order to satisfy evolving customers’ preferences and, at the same time, preserving as much as
possible physical resources employed in the process.
Closed‑loop recycling: recycling of a material can be done indefinitely, without properties degradation (upcycling). In closed-loop recycling, inherent
properties of a recycled material are not considerably different from those
of a virgin material, thus substitution is possible.
FIGURE 1.1 Place of remanufacturing in the product life cycle.
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