Blind Riveter Mandrel

A blind riveter mandrel is a component used in blind riveting, which is a fastening process used to join two or more materials together. The mandrel is a cylindrical metal rod that is inserted into the hollow rivet body during the riveting process.

Blind rivets, also known as pop rivets, consist of a rivet body and a mandrel. The rivet body has a hollow cylindrical shape with a flared head on one end and a mandrel retention groove on the other end. The mandrel is a thin rod that fits inside the rivet body.

During the blind riveting process, the rivet is inserted into a pre-drilled hole in the materials being joined. A blind rivet tool, also known as a rivet gun, is used to pull the mandrel through the rivet body. As the mandrel is pulled, it deforms the rivet body, creating a bulge on the blind side of the materials being joined. This bulge creates a secure and tight connection between the materials.

Once the mandrel has been fully pulled, it breaks off at the mandrel retention groove, leaving the rivet body in place. The broken mandrel is discarded, and the rivet remains as a permanent fastener.

Blind riveter mandrels are available in various sizes and materials to accommodate different rivet sizes and applications. They are typically made of steel or aluminum, depending on the specific requirements of the riveting job.

In summary, a blind riveter mandrel is a component used in blind riveting to join materials together securely and permanently.