Uses for Rivets in Manufacturing and Construction(sheet metal welder Lambert)
- source:BREDA CNC Machining
Aircraft and Aerospace
Rivets are extensively used in the assembly of aircraft fuselages, wings and other components. The rivets used are lightweight and high strength such as aluminum and titanium alloys. Riveting provides a reliable technique for joining sheet metal parts while minimizing weight. The riveted joints have good fatigue resistance which is crucial for aircraft undergoing dynamic stresses during flight. Rivets allow for precision fitting of parts and can accommodate some movement due to vibration and thermal expansion. Inspection of the shop head after riveting ensures proper hole fill and clamp-up.
Steel rivets are commonly used in shipbuilding to assemble and join large components of the hull and superstructure. The manual installation of thousands of rivets helps to create watertight joints. Pneumatic rivet guns allow for faster, mass production techniques compared to hammering rivets. Rivets provide uniform strength and stress distribution across lap joints. They can also join materials of different thicknesses. Marine grade stainless steel rivets offer excellent corrosion resistance in harsh ocean environments. Riveting continues to be a trusted technique for ship construction.
Structural rivets play an integral role in bridge construction. They are used to connect steel girders, beams, bracing and decking. The rivets transfer forces under loading safely between members. High strength carbon steel rivets are inserted hot and hammered cold to form the closing head. Pneumatic squeezers may also be used to deliver the high forces needed to deform the rivets. Proper installation ensures a tight fit and uniform clamping between parts. Large diameter rivets withstand the tensile forces acting on critical bridge joints. Riveting forms strong, stable connections which endure for the bridge's design life.
Boilers and Pressure Vessels
Boilers, heat exchangers, tanks and other pressure vessels rely on hot riveting to seal joints between plates and pipes. Copper rivets are commonly used due to their high temperature strength and ductility. The rivets are heated and driven using pneumatic hammers. The heat helps to fill the hole and prevent leaks. Rivet spacing and pattern is carefully designed to withstand cyclic pressure stresses without fatigue cracking along the joints. Tight rivets maintain compression between plates. Inspection ensures properly formed head shape and minimal gap. Riveting distributes stresses evenly compared to welding.
Cranes and Heavy Equipment
Earth moving equipment like bulldozers, excavators and heavy cranes use rivets throughout their structures. Large steel rivets join thick structural members and shovel buckets. Hardened steel rivets withstand impact stresses and hauling loads. Riveting also assembles the heavy frames of cranes and reinforcement of crawler tracks. Operators rely on the ruggedness of riveted joints to perform demanding tasks. Riveting offers reliable performance and extended service life in harsh environments.
Self-piercing rivets (SPR) are special mechanically set rivets used in automotive manufacturing. They do not require pre-drilled holes which improves efficiency. SPR join materials of different thicknesses like chassis components and body panels. Benefits include good vibration resistance, tolerance to gaps and less part deformation. The fast piercing and setting allows high volume production. Rivnuts provide strong threaded attachments points for interior trim, seats and electrical items. Rivets will continue seeing widespread use in cars and trucks.
The assembly of household appliances like refrigerators, washers and stoves involves extensive use of rivets. Small aluminum and steel rivets efficiently join sheet metal housings and frames while minimizing weight. Rows of rivets provide reliability and aesthetic appeal. Nutserts allow components to be bolted in place after riveting. Appliance manufacturers rely on advanced pneumatic riveting systems for fast cycle times. Durable and consistent riveted joints help appliances endure daily use over many years.
Miniature aluminum rivets fasten casings, internal frames and circuit boards in electronics like phones, computers and medical devices. Their small footprint is ideal for electronics packaging. Manual, electric and pneumatic rivet tools can precisely set tiny rivets. Electronics must withstand shock, vibration and thermal stresses which rivets accommodate. The rapid setting of multiple rivets boosts manufacturing productivity. Rivets also allow serviceability for repairing electronics.
A variety of rivets secure roofing, siding, gutters, ducting and drainage systems on buildings. Hardened aluminum and galvanized steel rivets withstand outdoor weathering. Bulbed tube rivets quickly fasten overlapping aluminum roof panels. Self-drilling screws provide strong fastening to steel. Large structural rivets anchor curtain wall support systems. Rivnut fasteners make strong attachments to studs. Riveting remains a simple, reliable technique suitable for diverse construction applications.
The versatility and reliability of rivets has kept them a fastening staple from traditional manufacturing to high tech applications. Improved strength alloys, specialized rivet designs and modern setting tools further enable usage across industries. While welding and adhesives displace rivets in some applications, they will continue playing a key role in fabrication and construction for the foreseeable future. CNC Milling CNC Machining