In order to improve the recyclability of products, quantitative evaluation of the recyclability at the design stage is important. This paper addresses design for recycling of electrical and electronic products based on a recyclability rate index. This index is defined as a rate of recyclable materials to total weight of a product and calculated by using information on the product and its end-of-life (EoL) scenario. In the previousresearch, we proposed a framework of lifecycle CAD (LC-CAD) that provides designers with an integrated design environment for both a product and its lifecycle. In this paper, the LC-CAD framework is applied to the design for recycling based on the recyclability rate. The system caluculates the recyclability rate from the product model and the EoL scenario integrated in the system, and the candidates of design modifications for improving the recyclability of the product are derived from the sensitibity analysis on the recyclability rate. As a case study, some examples of design modifications for the recyclability of a LCD TV are made from the quantitative evaluation and the sensitibity analysis.
