Uses for Rivets in Manufacturing and Construction(abs plastic injection molding Amos)
- source:GAENOR CNC Machining
Rivets have been used for thousands of years in applications ranging from boilers and bridges to aircraft and skyscrapers. While welding and screws have replaced rivets in some applications, rivets remain an essential fastening technology due to their strength, durability, and reliability.
There are several key advantages that make rivets a popular choice:
Strength - The riveting process creates a tight fit between the rivet and the materials being joined. This friction grip gives riveted joints great shear and tensile strength. Properly installed rivets are often stronger than the materials they are joining.
Reliability - When properly installed, rivets form a permanent joint that does not loosen over time. This makes them more reliable than threaded fasteners in applications subject to vibration, stress, or material fatigue.
Durability - Rivets are resistant to shock, strain, corrosion, moisture, and temperature fluctuations, making them one of the most durable fastener options.
Cost Effectiveness - Riveting is a fast and relatively low-cost joining process, especially when using automated equipment. This makes rivets economical for high volume production.
Versatility - Rivets come in a wide range of styles, sizes, and materials to accommodate different applications and material types. Installation also requires minimal tooling and equipment.
No Damage to Materials - The riveting process does not require drilling and tapping threads into the materials being joined, which could weaken or damage them. The smooth shank minimizes damage during installation.
Non-Corrosive - Many rivet materials, such as stainless steel and aluminum, resist corrosion, minimizing deterioration and maximizing joint integrity.
Key Uses of Rivets
Aircraft and Aerospace Applications
The aircraft and aerospace industries rely heavily on rivets due to their strength, reliability, and light weight. Rivets are used throughout airframes to assemble skins, ribs, spars and other structural components. Common aircraft rivets include flush head rivets, round head rivets, and countersunk head rivets. Exotic alloys like titanium, aluminum, and nickel are often used to resist fatigue and corrosion.
Rivets are commonly used in automotive manufacturing to assemble chassis components, attach trim and hardware, and fasten body panels. Steel and aluminum rivets provide durable fastening for high-vibration environments. Self-piercing rivets (SPR) join advanced high-strength steels without pre-drilled holes, speeding production.
The manufacture of appliances like washers, dryers, refrigerators, and ovens relies on rivets to assemble casings and frames. Stainless steel rivets withstand vibration while resisting corrosion and temperature extremes common in kitchen environments.
Miniature rivets help assemble precision electronics including cell phones, tablets, computers, and medical devices. Small specialty rivets provide reliable fastening while minimizing intrusion into densely packed interior spaces.
Round head and countersunk rivets made from brass, copper, and galvanized steel rivets assemble and repair pipes, gutters, boilers, heat exchangers, and other plumbing components. Select rivets comply with potable water system requirements.
The sheet metal ducting used in HVAC systems is often assembled using specialized self-locking duct rivets that create strong, air-tight joints. The locking collar on these duct rivets prevents rivet heads from shearing off due to vibration and air pressure.
Building and Construction
A variety of structural, architectural, and decorative rivets fasten steel beams, rebar, studs, aluminum siding, railings, stair stringers, and ornamental details in modern building construction. Rivets also assemble trusses, cranes, and scaffolding.
The assembly of ships, barges, and offshore platforms relies heavily on rivets due to their strength and corrosion resistance in marine environments. Large structural rivets are installed red-hot using hydraulic riveting equipment for applications like joining hull sections.
Rivets help assemble railroad tracks, rail cars, locomotives, and mass transit vehicles. High shearstrength steel track bolts (a large headed rivet) and high-strength steel rivets withstand heavy loads and vibration. Stainless steel rivets resist corrosion.
Steel bridges use hot driven rivets or high-strength bolts to connect gusset plates, stringers, floor beams, and truss members. Riveting remains a trusted bridge fastening method that provides both structural integrity and long service life.
Boilers and Pressure Vessels
The assembly of boilers, pressure tanks, heat exchangers, valves, and pipe fittings often relies on riveted joints to produce steam-tight, leak-proof performance. Cup head rivets provide a particularly tight seal.
Common Rivet Types
Several types of rivets are used in manufacturing, each with design features tailored to specific applications:
Blind Rivets - Where access is limited to one side, blind rivets are inserted into a pre-drilled hole until their collar contacts the surface. Tools then pull the stem, expanding the rivet body to form the head.
Tubular Rivets - These lightweight hollow rivets are used to reduce weight while retaining strength. Aluminum aircraft rivets are a common example.
Self-Plugging Rivets - Like blind rivets, these are installed where only one side is accessible. A sealant in the rivet expands to seal the hole when set. Used extensively in aircraft.
Drive Screw Rivets - Hardened threaded pins are driven into extruded holes to expand the rivet body. Used where standard riveting is impractical.
Structural Rivets - Large, high-strength structural rivets are commonly used in steel construction projects. They require pneumatic, hydraulic, or explosive installation tools.
self-pierce Rivets - Pierces and clinches sheet metal without pre-drilling, increasing speed and efficiency. Ideal for auto manufacturing.
Multi-Grip Rivets - A variation on blind rivets with expandable sleeves to accommodate wider grip thickness ranges for unknown assembly stack-ups.
Flush Rivets - Has a countersunk flat head that is flush with the surface for a clean appearance. Common in aircraft and appliances.
Button Rivets - Features a half-round head similar to a button to provide a more finished look. Used in furniture and sheet metal.
Conical Head Rivets - The 60 degree conical head increases bearing area to allow variation in hole alignment. Common in steel structures.
Pan Head Rivets - Extra wide dome head for applications requiring maximum strength. Ideal for connecting steel beams.
Dome Head Rivets - A round low-profile dome head with smooth edges to resist snagging. Used in textiles and fabrics.
While rivets will continue to share applications with newer fastening technologies like adhesives and 3D printed clip connections, they remain an essential, reliable, and cost-effective fastening method suitable for the toughest design challenges. With the right rivet design and installation equipment, manufacturers and builders can continue driving rivets for decades to come. CNC Milling CNC Machining