A slug rivet is a type of rivet used in advanced manufacturing, particularly in aerospace, where it's employed in an interference-fit riveting process.
Here's a breakdown:
-
Rivet Type: A solid rivet, meaning it's a one-piece fastener.
-
Interference Fit: Slug riveting utilizes an interference fit. This means the rivet's diameter is slightly larger than the hole it's inserted into. This difference creates a tight, secure connection after the riveting process.
-
Upsetting Process: The slug rivet is inserted into the hole and then deformed (upset) to fill the hole completely and form a head on the opposite side, creating a strong, permanent joint. This process often involves specialized tools and techniques.
-
Application in Aerospace: Slug rivets are often used in aerospace manufacturing because they provide a high-strength, reliable connection, critical for aircraft structures.
-
Countersunk Holes: Slug rivets can be used with countersunk holes to create a flush surface. Numerical models simulating the slug rivet upset process often incorporate countersunk hole structures for accurate predictions of the final joint characteristics.
In summary, a slug rivet is a solid rivet, often used in interference-fit applications, especially in aerospace manufacturing, to create strong and reliable joints, particularly with countersunk hole designs.
