Study of mechanical properties for copper alloy H62 sheets joined by self-piercing riveting and clinching

Abstract Self-piercing riveting (SPR) and clinching are new high-speed mechanical fastening techniques which are suitable for point joining lightweight sheet materials. The joinabilities of copper alloy H62 by SPR and clinching are discussed in this paper. Mechanical tests were conducted to study the static and fatigue properties of joints, and the properties of joints using SPR and clinching technologies were investigated. The effectiveness of experimental data was validated statistically, using Student's t test and a two-parameter Weibull distribution. The fatigue load ( F ) and fatigue life ( N ) results were plotted against log–log axes. Lines were fitted using least square methods and the two-parameter power function equations of F – N curves were obtained. The results showed that SPR joints had superior static and fatigue properties, but the clinched joints also presented favorable fatigue performance.

[1]  Jacek Mucha,et al.  The analysis of lock forming mechanism in the clinching joint , 2011 .

[2]  Xiaocong He.  Coefficient of variation and its application to strength prediction of self-piercing riveted joints , 2011 .

[3]  Luca Settineri,et al.  Experimental and numerical appraisal of self-piercing riveting , 2009 .

[4]  Li Han,et al.  Influence of edge distance on quality and static behaviour of self-piercing riveted aluminium joints , 2012 .

[5]  Francesco Lambiase,et al.  Influence of process parameters in mechanical clinching with extensible dies , 2013 .

[6]  X. Long,et al.  Fatigue properties and failure characterisation of self-piercing riveted 6111 aluminium sheet joints , 2006 .

[7]  Hideaki Nakayama,et al.  Fatigue failure criterion of adhesively bonded CFRP/metal joints under multiaxial stress conditions , 1998 .

[8]  Xiaocong He,et al.  Self-pierce riveting for sheet materials: State of the art , 2008 .

[9]  Xiaocong He,et al.  Recent development in finite element analysis of clinched joints , 2010 .

[10]  Li Han,et al.  Characterization of fretting fatigue in self‐piercing riveted aluminium alloy sheets , 2006 .

[11]  Stefano Beretta,et al.  Fatigue behaviour of tensile-shear loaded clinched joints , 2006 .

[12]  V. Karbhari,et al.  Influence of triaxial braid denier on ribbon-based fiber reinforced dental composites. , 2007, Dental materials : official publication of the Academy of Dental Materials.

[13]  Francesco Lambiase,et al.  Finite Element Analysis of Material Flow in Mechanical Clinching with Extensible Dies , 2013, Journal of Materials Engineering and Performance.

[14]  Dimitri Debruyne,et al.  Reproducing the experimental pull-out and shear strength of clinched sheet metal connections using FEA , 2011 .

[15]  S. O. Oyadiji,et al.  Application of coefficient of variation in reliability-based mechanical design and manufacture , 2001 .

[16]  Xin Sun,et al.  Fatigue Behaviors of Self-Piercing Rivets Joining Similar and Dissimilar Sheet Metals , 2007 .

[17]  Datong Zhang,et al.  Microstructure and mechanical properties of dissimilar pure copper/1350 aluminum alloy butt joints by friction stir welding , 2012 .

[18]  P. Mallick,et al.  Fatigue of self-piercing riveted joints in aluminum alloy 6111 , 2003 .

[19]  Toru Kato,et al.  Mechanism of superiority of fatigue strength for aluminium alloy sheets joined by mechanical clinching and self-pierce riveting , 2012 .

[20]  John H. Beynon,et al.  Feasibility of measuring residual stress profile in different self-pierce riveted joints , 2012 .

[21]  Li Han,et al.  Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints , 2012 .