JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (1): 84-89.doi: 10.6040/j.issn.1672-3961.0.2016.140

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Experiment and numerical simulation for surface roughness of 2024 aluminum alloy treated by shot peening

  

  1. ZHENG Linbin, WANG Jianming*, HE Xunchao(School of Mechanical Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2016-04-27 Online:2017-02-20 Published:2016-04-27

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Abstract: In order to research the effects of shot peeing on roughness of 2024 aluminum alloy, an effective method with numerical simulation to predict shot peening roughness was put forward. Aluminum alloy specimens were treated by shot peening, and their roughness Ra were measured by experimental measurement. A model with multiple shots was established to simulate the process of shot peening using ABAQUS, and the Ra were obtained from the statistics of nodal displacements along some sample paths based on the proposed discretized formula. Then the effects of shot parameters on roughness were analyzed through changing the parameters of the model. The results showed that relative error between simulation and experiment were 16.7%, 2.5%, 4.3%, which meant that simulation values were agree well with experimental ones. The correctness of simulation model and results was verified. In addition, it could be concluded by simulation that roughness increased as diameter of shots increased, as velocity of shots increased, and roughness increased quickly at beginning, then increased slowly as shot peening coverage increased.

Key words: 2024 aluminum alloy, shot peeing, roughness, experimental measurement, simulation

CLC Number: 

  • TG146.21
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