Research of Partial Destructive based Selective Disassembly Sequence Planning

Zhou Ziqiang*, 1, 2, Dai Guohong1, 2, Zhang Xiangyan2, Hu Chaobin2, Zhang Yongjian2
1 School of Mechanical Engineering, Changshu Institute of Technology, Changshu, Jiangsu, 215500 China
2 iangsu Key Laboratory of Recycling and Reuse Technology for Mechanical and Electronic Products, Changshu, Jiangsu, 215500 China

© 2015 Ziqiang et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


In the process of recycling EOL (end of life) products, disassembly is an important stage. Moreover, there are several targets for disassembly: reuse, remanufacturing and material recycling. In order to improve the efficiency of disassembly, only the component which need to be reused or remanufactured need to be disassembled with nondestructive method. The rest components which recycled for material can be disassembled with partial destructive method. Namely, partial destructive disassembly is more practical than total disassembly within recycling process for EOL products. In this paper, the generally used partial destructive disassembly methods are analyzed. And several rules are defined for reconstructing the hybrid graph of EOL product. And then, an extended Floyd algorithm is proposed for searching optimized disassembly sequence. With this algorithm, the material properties of parts, connection properties between parts or components are taking into account. By ranking the cost of several possible disassembly path, the optimal disassembly sequence is obtained for target component. At last, a soybean milk machine is used as a study case to verify the former approach.

Keywords: End of life product , partial destructive disassembly, selective disassembly.