By Christian Ullerich
Disassembly is without doubt one of the key components of any processing of recovered items. Be it for fix, remanufacturing, refurbishing, cannibalisation, fabric recycling, or disposal. as a result, making plans the disassembly is critical and—with turning out to be quantities of recovered items and wish for saving resources—becomes much more very important. The disassembly making plans techniques offered are in line with mathematical programming. With this technique, a profit-optimal making plans of amounts of a number of different types of recovered items in addition to components distribution, fabric recycling, and disposal amounts is realised. Thereby,typical points, like fabric purity requisites, the situation of the recovered items, unsafe components, and skill barriers, also are thought of. a brand new strategy is the offered mixture of disassembly-to-order making plans and disassembly sequencing, called versatile Disassembly Planning.
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Extra resources for Advanced Disassembly Planning: Flexible, Price-Quantity Dependent, and Multi-Period Planning Approaches
X x x x x x x x x 7 8 6 x x x x x 9 x x 10 x x x x x x x x PN, DP x x TSP x x GA x PN s o lut ion a p op pr ti oa ch h mal e u gr risit ap c c h o mm en t p ACO c p c GA x p FGA dc, tc GA, SA nr t B&B t PN c, p LP p c p, etc. x MILP LPP p, etc. x MILP GP p, etc. 2 Literature review on disassembly planning 23 * x x x x t t ct ct t t t t t x su, di x st, su, di x su, di x st, su, di x x x x x x x x x x xx x x x x x x x its lim In these publications the planning is more general than a pure to-order planning.
The Disassembly-to-order planning aims at ﬁnding the optimal quantities of cores to be disassembled in order to meet the demand of parts and material from a mix of cores. Thereby, these cores can have parts in common. If the common parts occur across diﬀerent cores, the term commonality 26 Note that incineration is seen as a material recycling option in the sequel. 27 Cf. Lee / Kang / Xirouchakis (2001): Disassembly planning and scheduling, p. 697. Cf. Lambert (2003): Disassembly sequencing: A survey, p.
Another reason is the fact that companies take back cores of diﬀerent make and model. 6 Nonetheless, this does not mean that automatic (ﬂexible) disassembly should not be enforced. Thinking of the growing quantities the automatic disassembly becomes necessary—surely not for all products, but where it suits. When the disassembly can be conducted very ﬂexible, the planning of the process should account for this ﬂexibility. And especially in the disassembly-to-order planning this ﬂexibility has to be integrated.