Conceptual Design of Product Structure for Parts Reuse

End-of-life products are taken back constrainedly by the laws and disassembled to a mass of reusable parts. Design for reusing these taken-back parts into new products has more constraints than conventional design. A new method based on the set theory and constraint digraph is proposed to model design for taken-back parts reuse and to get all feasible designs. The eco-cost which considers product cost and eco-efficiency of parts reuse concurrently is applied to get an optimal design. A structural design of stamping mold is examined as a case for the validity of the proposed method.