Rivets are robust, permanent fasteners critical for joining materials in applications where high strength and reliability are paramount. They are characterized by their lightweight nature and exceptional resistance to shearing forces. Rivets are distinctive due to their dual-headed design, which allows them to handle axial loads to a degree.
The installation of rivets doesn't require threaded holes; instead, a specialized tool known as a rivet gun is used to drive them into pre-drilled holes. The simplicity of their design allows for quick visual inspections to confirm integrity, contrasting with the more complex inspections required for welded joints.
Rivets' reliability and the ease of inspection make them a staple in industries where safety and durability are crucial, such as aerospace, where they are used to form both butt and lap joints.
The various types of rivets include:
Blind Rivet: Designed for situations where access to the joint is only possible from one side, these are also known as "pop" rivets.
Drive Rivet: These rivets are hammered into place, expanding to fill the hole and hold materials together.
Large Flange Rivet: With a wider head, these rivets offer greater surface area, useful for joining softer materials or for covering larger holes.
Semi-tubular Rivet: These have a partial hole at one end, which reduces the amount of force needed for application.
Tri-fold Rivet: These rivets fold out into three wings as they're installed, providing a strong hold in softer materials.
Each type of rivet is engineered for specific applications, ensuring a permanent and secure fastening solution where disassembly is not intended or required.
