This paper presents a method of assembly synthesis focused on the in-process adjustability, where assembly synthesis is defined as the decomposition of the end product design prior to the detailed component design phase. Focusing on the effect of joint configurations on dimensional integrity of complex assemblies, the method recursively decomposes a product configuration and assigns joint configurations according to simple rules, in order to achieve a designed dimensional adjustability and non-forced fit. The rules employed during the decomposition process are drawn from the previous works of assembly design. An augmented AND/OR graph is utilized to represent a process of assembly synthesis with the corresponding assembly sequences, and the algorithm for generating the AND/OR graph is discussed. The method is applied to two dimensional skeletons of products without moving parts at very early stage of the design process. The relation of the assembly synthesis to Datum Flow Chain  is discussed. It is also shown that each final design from the assembly synthesis defines its own Datum Flow Chain.
Decomposition-Based Assembly Synthesis for In-Process Dimensional Adjustability
Contributed by the Design Automation Committee for publication in the JOURNAL OF MECHANICAL DESIGN. Manuscript received April 2002. Associate Technical Editor: J. E. Renaud.
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Lee, B., and Saitou, K. (September 4, 2003). "Decomposition-Based Assembly Synthesis for In-Process Dimensional Adjustability ." ASME. J. Mech. Des. September 2003; 125(3): 464–473. https://doi.org/10.1115/1.1587746
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