Contact Rivets - The Robust Mechanical Fasteners

 

Rivets are basically the single contact components that are made to fasten two pieces or parts together. They can be observed as buttons or trivial pieces of screws without threads. These rivets are categorized into different types, like solid contact rivets and composite contact rivets. The composite contact rivets are further categorized into bi-metal and tri-metal rivets. The China bimetal contact rivet is a kind of composite contact rivet that is made of two metal materials whereas the tri-metal contact rivet is made up of three metals. 

Anatomy of the Contact Rivets

1. The contact rivets are composed of two main parts; a head and a cylindrical stem-like a shank or tail.
2. The shape of the contact rivets could resemble a metal pin.
3. To join any two pieces or components together with a contact rivet, it is important that they have a hole. 
4. The contact rivets are then punched, drilled, or placed in these holes.
5. Following the placement of the rivets into the holes of the components, the tail is deformed to keep the rivet in place. 
6. The shank deformation could be executed physically by smashing or pounding.
7. Subsequent to the deformation of the shank, the contact rivet is flattened and the shank increases in size about one time greater than its original diameter.
8. Now, after these steps, the contact rivet looks like a dumbbell. 
9. The joints formed with different contact rivets could be either lap joint or butt joint with specific configurations, like single formation, double formation, etc.
10. The deformation is possible because of the malleability characteristics of the metals.

Applications of the Contact Rivets

The applications of contact rivets are found in different industries, including electronics, automation, communication, household appliances, automotive industries, etc.