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Numerical investigation of tool parameter influence on the interlock forming during flat clinching process

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Abstract

Tool parameters play a vital role in the mechanical interlock formation during the flat clinching process. To understand the influence of tool parameters on the interlock formation, the finite element software DEFORM-2D was used to build the numerical model of the flat clinching process, and the numerical model was verified by the experiment. The influences of the punch radius, punch fillet radius, and blank holder radius on the interlock formation of the clinched joint were investigated using the numerical model. Then, the relationship between the punch radius and blank holder radius was studied. The results showed that the interlock gradually increases with the increase of the blank holder radius; after that, the interlock begins to decrease. To maximize the interlock, the punch radius and the blank holder radius should be increased simultaneously. It can be concluded that the blank holder radius and the punch radius should keep a linear relationship when designing the geometric dimensions of the flat clinch tools, which can promote the application of the flat clinching process in car body manufacturing.

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All data generated or analyzed during this study are included in the present article.

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Funding

The authors acknowledge funding by the National Nature Science Foundation of Shandong Province of China (grant no. ZR2018MEE024 and ZR2020KE051), the Project of Shandong Province Higher Educational Science and Technology Program (grant no. J17KA018), and the Binzhou University Doctoral Research Initiation Fund Project (grant no. 2016Y06).

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Authors and Affiliations

  1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China

    Zhiyong Wang, Shanling Han, Zhiyong Li & Yong Li

  2. College of Mechatronics Engineering, Binzhou University, Binzhou, China

    Zhiyong Wang

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  1. Zhiyong Wang
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  2. Shanling Han
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Correspondence to Shanling Han.

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Wang, Z., Han, S., Li, Z. et al. Numerical investigation of tool parameter influence on the interlock forming during flat clinching process. Int J Adv Manuf Technol 126, 301–311 (2023). https://doi.org/10.1007/s00170-023-11118-5

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  • DOI: https://doi.org/10.1007/s00170-023-11118-5

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