Rivets TRIZ Cases

A non-uniform punching edge stages contact around the circumference, cutting peak punching force and stress when fastening to stronger sheet metal.

A mandrel-expanded sleeve conforms to threaded bores to avoid cross-threading, speed installation, and improve joint reliability.

Ramped splines and a spring let a blind fastener shift between free-spin and clamping without over-torquing or high axial force.

Heat-deformable pins replace separate bolts and collars to speed aircraft fastening, cut weight, and retain function under abnormal heat.

Plastic swaging into lock grooves delivers consistent preload, faster installation, and break-off confirmation for secure multi-workpiece fastening.

Lateral laser heating plasticizes a hollow rivet wall to form a strong bulged head while reducing thermal stress on the second component.

A rotating hooking element and fixed spreader let this temporary fastener fit varying structural thicknesses while avoiding clip wear.

A split anchor and threaded head enable one-sided fastening that can be removed and reused without special tools while resisting axial and shear loads.

A shallow axial recess and flat rivet foot promote symmetric upsetting instead of unstable expansion when joining high-strength steel.

An eccentric nut and stopped sleeve let blind fasteners clamp securely at non-normal angles while avoiding drive jamming and load-path weakness.

Automated pin displacement and rotation deform the sleeve and shear the pintail, speeding one-sided fastener installation with better alignment control.

Preformed clearance holes let self-piercing rivets join hard or mixed-material layers without rivet fracture, substrate damage, or added corrosion risk.

Impulsive riveting with aluminum alloy rivets mechanically interlocks aluminum, magnesium, and steel parts while reducing galvanic corrosion.

A dual-position pin flange and annular sealing structure improves panel waterproofing while avoiding costly undercut molding.

Load and stroke sensing verify collar deformation on the pin during installation, removing separate swage gauge checks and saving assembly time.

A flatter rivet bore and more ductile material enable crack-free compression, wider spreading, and cleaner coating across varied sheet thicknesses.

A threaded spindle and unthreaded collet retract together to keep the fastener compact, easing installation in tight spaces while preserving clamp load.

Aligned frangible pin and housing sections shear at a set load to absorb impact and protect coupled components from damage.

A nested spindle and collet fastener shortens overall length for tight spaces while preserving clamping load and installation access.

A lever-guided anvil bends the mandrel instead of breaking it, securing the collar faster while reducing acoustic noise and fastener length.

Blunt or rounded rivet head edges reduce wedging forces that cause shingling and jamming in resistance spot rivet delivery.

A radial projection and punching edge create a one-step undercut fastener for high-strength sheet metal without pre-punching or welding.

A projecting grommet and grooved support pin resist shear-induced tilt, helping bumper clips stay watertight under external load.

Clamping feet transfer load into the drive sleeve to reduce shear on collet legs, improve alignment, and shorten grip length.

Mechanical fastening replaces welded end plates in tubular beams, avoiding heat-affected zones while improving load capacity and assembly.

Built-in visual indicators show whether a bore-mounted fixing is fully seated, reducing detachment risk and secondary inspection time.

Spring arms release and re-present swageable collars on contact, enabling one-handed serial lockbolt swaging with less manual handling.

A break groove and shoulder stop enable flush titanium blind fastener break-off, reducing blind-side protrusion and secondary machining.

A bench-supported pneumatic-hydraulic base and hose-linked tool head reduce lifting load and speed repeated lockbolt installation.

Strategic stops, washers, and a stabilizing disk let a four-bar window stay open to 90 degrees for cleaning without buckling under load.

A punching edge and radial projection let the element pierce high-strength sheet metal and form undercuts for stable fastening without welding.

A fixed separator and internal locking groove let this pin clamp fit closely spaced holes while avoiding interference with robotic assembly.

High strain rate aluminum riveting joins dissimilar materials while reducing galvanic corrosion, cost, and recycling issues.

A radiused and tapered shank transition lowers insertion load and balances residual stress in interference-fit fasteners for composite structures.

Spring-biased toggles lock conduit bender parts with click confirmation while allowing quick release and reducing misalignment.

A burred rising portion and inserted joint member spread shear stress to maintain joint strength across sheet thicknesses without embrittlement.

Using separate fastening and functional materials, this bolt element avoids galvanic corrosion and thermal stress while keeping secure attachment.

V-shaped stem depressions and material bulges lock the stem into the blind fastener body to prevent looseness, noise, and weak retention.

A pin-and-collar rivet fastener clamps components in existing holes, maintains retention under load, and installs without special tools.

Discrete tool protrusions grip a flat fastener head to stop rotation during blind installation while preserving a flush, damage-limiting surface.

Radially projecting or recessed inner flats improve socket locking and automatic machine handling under high torque and cured mastic.

External pressurization prevents element push-up during dissimilar-metal resistance welding, enabling a strong fusion zone with lower heat input.

Frangible bolt and nut features enable flush blind fastener installation while controlling torque, grip variation, and rotation defects.

Rolling elements isolate the actuating element from rubbing, enabling higher tightening force and stable radial clamping at the orifice edges.

Axial pressing expands a flanged metal element inside a plate hole, creating rigid joints without tight hole tolerances, heat, or solvents.

A two-edge self-punching fastener splits the slug during setting, preserving thread access and avoiding extra removal steps.

A plug-based repair restores reinforcement holes in composite turbomachine parts, preventing ovalization and preserving fastener function.

A short pull region and segmented mandrel reduce blind fastener installation force while avoiding mandrel fracture and supporting corrosion resistance.

A rotating pin forms sleeve threads and a locking bulb, cutting blind fastener cost while delivering preload, stiffness, and sealing.

A breakaway insertion tip diverts composite fibers instead of cutting them, enabling faster fastening while preserving part strength.