Reconditioning is the process of restoring the parts to their new condition (this covers not only geometric recovery, but also the material features, such as hardening). According to Steinhilper, the remanufacturing subprocess consists of disassembly (i.e., each core is disassembled to its smallest parts, then each of the parts is identified), cleaning (not only a washing process, but also removing paint, oil/lubricant, grease, and corrosion residue from the parts), and inspection (whose objectives are to determine condition of the parts and to decide the suitable reconditioning method for the parts’ conditions). The remanufacturing subprocess is the essence of the remanufacturing process. Having the cores available in the appropriate quantity and model/type at the right time becomes a very critical point. The return of these cores is important as the cores are going to be used as raw materials in remanufacturing. Collection is defined as the process of collecting cores from end-users. Ĭoncerning remanufacturing, in general, a remanufacturing process comprises three subprocesses, namely collection, remanufacturing, and redistribution. In heavy diesel engine remanufacturing (and other remanufacturing processes), cores are used as the main raw material. According to the terminology of diesel engine remanufacturing, a core is a worn-out engine that shows such low performance that it needs a total repair. Stahel says that, on average, only about 40% of the total number of components of a remanufactured product are new components, and the percentage of new components may be reduced to 25%, as there will be better quality parts, an improvement in quality control, and advancement in remanufacturing technology. In the remanufacturing process, new parts are needed as the recovery rate of disassembled parts can never achieve 100%. Stahel states that the remanufacturing industry is considered to be economically and ecologically friendly, as it extends a product’s life by reusing its parts. Referring to 14th edition of the APICS dictionary, remanufacturing is defined as an industrial process in which a worn-out product is reconditioned into its new condition.
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