Abstract
Allocating tolerance to sub-components of a complex assembly with alternative processes selection by using Lagrange’s multiplier method is tedious as well as difficult. The present work is aims to solve the problem with simple effort in three stages. In the first stage, the maximum of two processes are selected from the alternative processes of each component and these two processes correspond to the smaller sum of difference in manufacturing cost. A hybrid optimum tolerance allocation method is developed in a second and third stage by combining Tabu search (TS) and heuristic approach. Application of the proposed algorithm is demonstrated on complex tolerancing products like knuckle joint and wheel mounting assembly. For the same manufacturing conditions, compared with tolerance synthesis by Singh method, the proposed method saved nearly $74,880 and $479,520, respectively, per year in manufacturing costs of knuckle joint and wheel mounting assembly.
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Kumar, M.S., Kannan, S.M. & Jayabalan, V. A new algorithm for optimum tolerance allocation of complex assemblies with alternative processes selection. Int J Adv Manuf Technol 40, 819–836 (2009). https://doi.org/10.1007/s00170-008-1389-5
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DOI: https://doi.org/10.1007/s00170-008-1389-5