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Study on the tolerance allocation optimization by fuzzy-set weight-center evaluation method

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Abstract

The tolerance allocation optimization method by fuzzy-set weight-center evaluation is used to derive the manufacturing difficulty coefficient, through quantifying the manufacturing condition factors which all affect the manufacturing cost, including the forming means of the blank, element size, machining surface features, operator’s skills, and material’s machinability. The coefficient is then converted into a weight factor used in the inversed square model representing the relationship between the cost and tolerance, a cost-objective function model based on optimal tolerance allocation according to the manufacturing conditions is thus established for optimizing and allocating the tolerances. Integrating this model into computer-aided-tolerance-allocation makes it more convenient, accurate, and feasible.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Harbin Institute of Technology, Harbin, 150001, People’s Republic of China

    Yu Wang, Wen-jie Zhai, Li-ping Yang, Wei-guo Wu, Shu-ping Ji & Yu-lin Ma

Authors
  1. Yu Wang
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  2. Wen-jie Zhai
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  3. Li-ping Yang
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  4. Wei-guo Wu
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  5. Shu-ping Ji
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  6. Yu-lin Ma
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Corresponding author

Correspondence to Wen-jie Zhai.

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Wang, Y., Zhai, Wj., Yang, Lp. et al. Study on the tolerance allocation optimization by fuzzy-set weight-center evaluation method. Int J Adv Manuf Technol 33, 317–322 (2007). https://doi.org/10.1007/s00170-006-0471-0

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  • DOI: https://doi.org/10.1007/s00170-006-0471-0

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