Introduction(strength of steel Jesse)
- source:LONTL CNC Machining
Uses in Aviation and Aerospace
Rivets play a crucial role in aircraft construction. Thousands of rivets are used to join the aluminum sheets that form the aircraft frame and skin. Rivets allow for light and strong joints that can withstand the immense forces exerted during flight. Aircraft designers select high strength aluminum and steel alloys for rivets. Countersunk rivets with flush heads improve aerodynamics.
Rivets are also extensively used in rockets and spacecraft. Launch vehicles experience intense vibration during liftoff. Riveted joints have the durability to withstand these forces without coming loose. The external tiles on space shuttles were affixed using specialty rivets capable of handling thermal expansion stresses during re-entry into the atmosphere.
Uses in Bridges and Infrastructure
Steel and concrete bridges make heavy use of rivets. Older bridges used hot riveting where the rivet is heated red hot, inserted into the hole, and hammered into shape. This forged a strong joint but was time consuming. Modern structural riveting uses high strength cold driven rivets. Robotic riveting machines make quick work of fastening girder joints.
Rivets are also commonplace in the construction of towers, cranes, offshore oil platforms, and pipes. Stainless steel rivets withstand corrosion from saltwater. Appropriately sized and spaced rivets are crucial for structural integrity in civil engineering projects.
Uses in Railways
Rails are joined into continuous lengths using track bolts or rail anchors. The rail is drilled, the anchor inserted, and the protruding end peened over to clamp it in place. Rivets also fasten rails to railroad ties. Vibrations from trains eventually loosen joints, so periodic re-riveting maintenance is required.
Rivets hold together locomotive and railcar bodies. Railroad companies use pneumatic rivet guns for easy driving of rivets into the framing. Rivets allow for disassembly for maintenance and upgrades. High strength steel rivets handle the forces and shaking during transport.
Uses in Shipbuilding
Ship hulls are assembled from huge steel or aluminum plates. Ribbed frames provide internal support. Riveting these pieces together produces rigid joints that can withstand flexing forces from waves. Pneumatic rivet guns allow fast riveting even in awkward positions. The countless rivets in ocean liners and tankers must be corrosion resistant.
Rivets also fasten smaller boat components like railing, flooring, benches, and trim. Stainless steel or brass rivets prevent rusting in salt water. Pop rivets allow DIYers to easily rivet thin aluminum for at-home boat building and repair projects.
Uses in Automobiles
Cars contain thousands of rivets joining the body panels, dashboards, frames, and components. Steel rivets provide durable fastening for chassis parts that undergo vibration. Self-piercing rivets directly pierce sheet metal without pre-drilled holes for faster assembly line production. Plastic rivets affix interior trim pieces and are designed to pop-off during accidents to absorb impact energy.
Mechanics use rivets for handles, hinges, brackets, and other repairs. Pop rivets allow easy riveting without bucking bars for in-situ applications during maintenance and restoration work. High strength steel rivets repair any compromised or damaged automotive components.
Uses in Appliances
The outer wrappers of appliances like refrigerators, washers, and ovens use case hardened steel rivets. These fasten sheets around the insulation layer. The hammered head and flattened tail of rivets make a secure mechanical bond unlike screws which can vibrate loose over time. This prevents rattling and grants durability.
Internally, rivets assemble the frame and mount components like motors, compressors, doors, and control boards. Stainless steel rivets withstand humidity and prevent rusting. Plastics like nylon and polypropylene are also common for inner rivets. Their flexibility reduces noise from vibration.
Uses in Electronics
Laptops, phones, and tablets have thin lightweight shells held together by tiny specialty rivets. The rivets must be precisely flush to the outer case to maintain the slim profile. Plastic rivets join interior frames yet break away on impact to protect sensitive electronics.
Densely packed electronics boards are assembled with micro rivets. Automated pick and place machines precisely rivet surface mount components onto boards. Miniature plastic, steel, and aluminum rivets maintain electrical contacts amidst shocks and vibration. POP rivets allow easy removal for component replacement and board rework.
Rivets have been used since ancient times to build armor, bridges, and structures. Today, both manual and mechanized riveting form the backbone of modern manufacturing across industries. From aircraft and appliances to batteries and boats, products rely on the strength, reliability, and durability of riveted joints. Advances in materials and automated processes ensure rivets will continue improving products for years to come. CNC Milling CNC Machining