Quality of self-piercing riveting (SPR) joints from cross-sectional perspective: A review

Assessment of Self-Piercing Riveted Joints Using the Analytic Hierarchy Process

“…In spite of the long history of riveting in metal joining, going back to the Bronze Age, its applications have been limited by the availability of weldable metals and feasible rivet materials for less expensive and easy automation welding techniques [1]. Self-piercing riveting (SPR) as a development of riveting process started to find its way in industrial applications since 1975, due to its unique features [2]. Compared with the traditional joining methods, SPR has the following advantages [2]:…”

“…With the application of six criteria, including head height, bottom thickness, minimum bottom thickness, deformed rivet diameter, shear strength, and peel strength, the AHP assessment was able to define the best conditions for the SPR joining of the aluminium alloy sheets.The SPR process is used to join two or more similar or dissimilar sheet materials by driving a rivet through the top sheet and partially to the bottom sheet. The process creates an interlock between the sheets by flaring the rivet skirt, directed by a suitable die, without piercing through the bottom sheet [2,3]. SPR is a cold process, and unlike the conventional riveting process, does not require a pre-drilled hole, therefore possessing the same joining speed as that of the resistance spot welding [4].…”

“…SPR is a cold process, and unlike the conventional riveting process, does not require a pre-drilled hole, therefore possessing the same joining speed as that of the resistance spot welding [4]. As shown in Figure 1a, the performance of an SPR process depends on several parameters, including the stack thickness, set force, die shape, die geometry, and the geometry, shape, and hardness of the rivet [2]. The primary parameter regarding the joint quality is the joint interlock, which can be defined by sectioning the joint.…”

Prediction of Resistance Spot Weld Quality of 780 MPa Grade Steel Using Adaptive Resonance Theory Artificial Neural Networks

“…There are various methods of joining automobile bodies for weight reduction of automobiles, such as fusion welding, mechanical fastening (clinching, riveting), and adhesive bonding [7,8]. The resistance spot welding (RSW) is one of the effective welding methods of joining HSS for automobiles.…”

Microstructural Characterization of Surface Softening Behavior for Cu-Bearing Martensitic Steels after Laser Surface Heat Treatment

“…Among the numerous available manufacturing processes, laser-beam-assisted processes are particularly versatile because of their diverse application range and superior manufacturing efficiency, including welding [6][7][8], cladding [9], surface alloying [10,11], selective melting [12][13][14], shock peening [15,16], and riveting [17]. Selective control of surface material properties is also possible through laser processing.…”