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Acta Armamentarii ›› 2020, Vol. 41 ›› Issue (1): 202-208.doi: 10.3969/j.issn.1000-1093.2020.01.024

• Research Notes • Previous Articles    

Experimental Optimization of Processing Parameters of Stranded Wires Helical Springs Based on DoE Method

YI Lili, YANG Wenhang, WANG Shilong   

  1. (State Key Laboratory of Machanical Transmissions, Chongqing University, Chongqing 400044, China)
  • Received:2019-03-20 Revised:2019-03-20 Online:2020-02-22

Abstract: The research on the coupling mechanism of the processing parameters of stranded wires helical springs (SWHS) for the product quality has been incomplete, which leads to the low yield of SWHS and the difficulties in large-scale promotion. An experimental method for optimizing the processing parameters of SWHS is proposed. The dichotomy method is utilized to obtain cable pitch, which is proved to meet the stiffness performance requirement of SWHS. The optimization experiments of three processing parameters, including mandrel diameter, spring pitch and wire tension, are designed based on DoE method. An optimal SWHS processing parameter group is obtained by means of the mean analysis of signal-to-noise ratio. The practical processing of reset SWHS for drill pipe proves that DoE method is feasible. The research results show that the DoE method can be used to reduce the acquisition time of processing parameters of SWHS, and save a lot of costs for the research on SWHS processing technology. Key

Key words: strandedwireshelicalspring, DoEmethod, rigiditycheck, processingparameter, signal-to-noiseratio

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