The principle and difference of riveting


Riveting is to use a metal cylinder or metal tube (rive […]

Riveting is to use a metal cylinder or metal tube (rivet) with a slightly smaller diameter than the perforation, passing through the workpiece to be riveted, and knocking or pressing the two ends of the rivet, so that the metal column (tube) is deformed and thickened at the same time. The rivet head (cap) is formed to prevent the workpiece from coming off the rivet. When the external force that separates the workpiece is applied, the nail rod and the nail cap bear the shearing force to prevent the workpiece from separating. Riveting is divided into cold riveting and hot riveting. Cold riveting is the riveting of rivets at room temperature; hot riveting is used in places with higher connection requirements, such as the riveting of steel beams of iron bridges. The rivets need to be preheated during hot riveting, and red hot rivets After piercing the rivet hole and punching the rivet head, the shrinkage stress during the cooling process will make the connection tighter. Riveting generally requires double-sided operations. The emergence of blind rivets makes single-sided operations a more convenient and feasible process.