Research Article

SPR Characteristics Curve and Distribution of Residual Stress in Self-Piercing Riveted Joints of Steel Sheets

Table 4

Reference lattice spacing of the sheets and rivets used to produce the selected joints.

Sheet materialRivet
NameLattice spacing (Å)HardnessLattice spacing (Å)

Joint 1G450 steel480 HV
Joint 2G300 steel555 HV