What is the reason for the pull-through and burr phenomenon of rivets?
This or that kind of problem will occur when the rivet is used. The following Xiaobian will introduce to you in detail why the rivet will be pulled through and burrs. The mandrel is pulled out from the rivet body as a whole, and the fracture of the mandrel is not broken. After riveting, a penetrating hole is left in the rivet body, which is called pull-through. The reason for the pull-through phenomenon is generally that the pulling force of the mandrel is too large; the diameter of the mandrel cap of the rivet is too small; the material of the rivet body is too soft; the surface of the inner hole of the rivet is too lubricated. After the rivet is riveted, the burr of the fractured opening of the mandrel passes through the outside of the rivet body hole; or the rivet inner hole brings out the tip and protrudes, forming a burr that scrapes the hand. The main reasons for the burrs are that the diameter of the mandrel cap is too small; the material of the rivet body is too soft; the diameter of the workpiece drilling is too large; the size of the nozzle of the rivet gun is too large; the distance between the mandrel fracture and the mandrel head is too large, exceeding Actual rivet riveting thickness. steady-ind.com