Disassemblability Sieve in Disassembly AND/OR Graph for Disassembly Process Planning

DfD(design for disassembly)is a key part of environmentally conscious manufacturing for electr(on)ic products,and DAOG(disassembly AND/OR graph)is a kind of graph models used for disassembly process planning in DfD.The disassemblability sive,a step of constructing DAOG,is systematically studied,including the design of modules(constructing disassembly collision matrix,judging and deducing disassemblability of edges in DAOG)and sieving process. A combination of containing box,ray intersection and static collision inspection is applied to judge disassembly collision among parts. A Solid Works-based software tool is developed,and several difficulties during the development are detailedly analyzed.This research ensures the validity of DAOG and disassembly process planning, and is also available for assembly collision judgment in design for assembly.