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Two-steps clinching of aluminum and Carbon Fiber Reinforced Polymer sheets

机译：铝和碳纤维增强聚合物板的两步压接

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摘要

The present paper investigates the effectiveness of two-steps clinching for joining aluminum and Carbon Fiber Reinforced Polymer (CFRP). To this end, different reshaping tools were involved after joining by clinching with split dies. The reshaping force was also varied. Single lap shear tests of simple clinched and reshaped specimens were performed to determine the influence of the process conditions on the mechanical behavior of the joints. The morphology and geometry of joints were analyzed to understand how the reshaping step influences the main quality criteria of the joints and the damage produced on the CFRP sheet. According to the experimental results, simple clinched connection failed by pullout; thus, the critical parameter was the undercut. The reshaping method, using optimized tools enabled to increase the strength of the joints by 32%. Such an improvement was due to an increase in the undercut that resulted from a higher and improved material flow. The main defects that may appear in these joints have been identified as well as their causes. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文研究了两步压铆连接铝和碳纤维增强聚合物（CFRP）的有效性。为此，在通过拼合模具压紧连接之后，需要使用不同的整形工具。重塑的力量也各不相同。对简单的压紧和改型的样品进行单圈剪切试验，以确定工艺条件对接头机械性能的影响。分析了接头的形态和几何形状，以了解整形步骤如何影响接头的主要质量标准以及在CFRP板上产生的损伤。根据实验结果，简单的固定连接由于拉拔而失败；因此，关键参数是底切。使用优化工具的重塑方法可使关节的强度提高32％。这样的改进是由于更高和改进的材料流动导致底切增加。已经确定了这些关节中可能出现的主要缺陷及其原因。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2017年第3期|180-188|共9页
  • 作者

    Lambiase Francesco; Ko Dae-Cheol;

  • 作者单位

    Univ Aquila, Dept Ind & Informat Engn & Econ, Via G Gronchi 18, I-67100 Laquila, AQ, Italy|Univ Naples Federico II, CIRTIBS Res Ctr, Ple Tecchio 80, I-80125 Naples, Italy;

    Pusan Natl Univ, Grad Sch Convergence Sci, Busan 46241, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Joining; Metal; Clinching; CFRP; Hybrid joints; Composite;

    机译：连接;金属;铆接;CFRP;混合接头;复合材料;

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