Rivets TRIZ Cases
- Artificial Aluminum Layer for Crack-Free SPR Magnesium Joints
An artificial aluminum layer lets SPR fasten steel or aluminum to magnesium without cracking the casting or damaging pre-coatings.
- Ultrasonic Self-Piercing Riveting With Force-Gradient Control
Force-gradient feedback adjusts ultrasonic vibration during self-piercing riveting to lower insertion force and improve joint quality.
- Blind Fastener Installation Tool With Single-Sequence Pull and Torque
A dual-sleeve, free-wheel drive combines pulling and rotation in one sequence to set pull-screw blind fasteners and break the gripping element.
- Lift Locking Mechanism for Secure Tool Engagement in Tight Openings
A base-and-lift locking mechanism secures a tool in confined openings by coupling to its lifting member and applying force without extra infrastructure.
- Offset Collar Delivery for Low-Clearance Lockbolt Swaging
Prepositioning the collar on an offset swage nose improves hole alignment and flush placement in low-clearance automated fastening.
- Blind Fastener Anti-Rotation Structure for Variable Thickness Joints
A two-part anti-rotation interface lets blind fasteners handle variable thickness work pieces without losing rotational stability during assembly.
- Brake Disc Rivet Head Forming for Thin Rotor Hat Connection
A flattened rivet head conforms to a thin curved rotor hat, securing the friction ring without weakening the lightweight brake pot.
- Deformable Bushing Bearing Assembly for Low-Wear Pivot Joints
A deformable bushing forms a flange during rivet installation to prevent metal contact, reducing wear and noise in pivot bearing joints.
- Lockbolt Collar Cutting for Clean Pin-Safe Removal
Opposed cutting members centralize a swaged lockbolt collar for balanced cuts, clean removal, and pin-safe maintenance.
- Motor-Driven Swage Fastening Tool for Dual Fastener Modes
A motor-driven swaging mechanism replaces fluid pressure systems, enabling compact fastening with selectable modes for breakage and non-breakage fasteners.
- Blind Fastener Installation Tool With Switchable Nut-Holding Sleeve
A switchable external sleeve holds the core nut or rotates with the collet, turning blind fastener installation into one fast dual-action step.
- Rivet Nut Heat Treatment for Crack-Free Crimping Strength
Annealed low-carbon steel rivet nuts keep enough ductility for crimping while improving thread strength and reducing manufacturing complexity.
- Self-Piercing Rivet Die Geometry for Crack-Resistant Closing Heads
An annular die cavity guides lateral material flow and controlled rivet expansion to reduce cracking in brittle aluminum joints.
- Radiused Interference-Fit Fasteners for Lower Installation Force
A dual-radius lead-in lets interference-fit fasteners seat gradually, cutting installation force while improving joint fatigue life.
- Selective-Hardening Sleeve Nut for Reliable Blind Fastening
Selective strain hardening creates a one-piece sleeve nut with a hard threaded section and ductile bulbing sleeve to prevent slippage in blind fastening.
- Semi-Hollow Punch Rivet Geometry for High-Strength Sheet Joining
A ring cutting edge and controlled shank diameter ratio limit rivet expansion while preserving undercut strength in high-strength sheet joints.
- Removable Blind Fastener With Rod-Expanded Legs for Tight Tolerance
A smooth rod expands resilient legs instead of threaded actuation, improving dowel tolerance and clamping load in small blind fastener apertures.
- Air-Assisted Fastener Retention in Limited-Access Installation
Directed air tilts the fastener shaft against the hole wall to create friction retention, speeding installation in confined aircraft assemblies.
- Composite Fastening Structure for Lightning Current Distribution
Conductive contact layers route lightning current between composite members, reducing fastener concentration and spark risk.