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Why Structural Breakstem Fasteners?
- Low installed cost
- Blind installation
- Permanent, reliable fastening
- Lightweight, ergonomic tooling
Avdel Cherry structural breakstem rivets have
been designed to fulfill a variety of functions across a wide range of assembly
applications. Labor-intensive operations which require access to both sides are
made obsolete with Avdel Cherry's structural breakstem rivet range. The
advantages offered by these unique fastening methods are:
- Low Installed Cost: The ease of assembly and
speed at which the rivets.
- Blind Installation: The ability to place Avdel
Cherry structural breakstem rivets from only one side of the workpiece
increases the speed and efficiency of the assembly.
- Permanent, Reliable Fastening: Structural
Breakstem fasteners provide secure assembly and provide a
vibration-resistant joint.
- Lightweight Ergonomic Tooling: Avdel Cherry
tooling has been designed with the operator in mind. Structural breakstem
fasteners are installed with tension placing tools Torque-reliant tooling
may cause Carpel Tunnnel Syndrome or other repetitive motion injuries.
Installation
The installation of Avdel Cherry structural blind
rivets is easily accomplished with the use of hydra-pneumatic tools. Avdel
Cherry manufactures tools from basic handheld tooling to elaborate multihead
and/or bowl-fed equipment.
- The rivet is inserted into the prepared hole.
- As the stem is pulled by a rivet tool, the
blind portion of the rivet expands radially and pulls the application
material firmly together.
- When the rivet is fully expanded, the stem
breaks and the installation process is complete.
Selecting the Proper Fastener
- Select a rivet group that meets the shear and
tensile requirements for the application.
- Select a rivet material that is compatible
with the materials being joined. As a general rule the rivet material should
have the same physical and mechanical properties as those being joined.
Using a dissimilar material may cause joint failure due to either material
fatigue or galvanic corrosion.
- Determine the type of head style required
based upon the application material and hole preparation.
- Measure the thickness of the material to be
joined (grip) and prepare the hole for the proper diameter of the rivet.
NOTE: Good design practice dictates that a
fastener should not be used in material thicknesses which fall outside of the
specified grip range or recommended hole size.
Why Lockbolt Fasteners?
- Low installed cost
- Vibration and fatigue resistant
- Consistent installation
- Reduced rework and warranty costs
Avdel Cherry lockbolts are designed to meet the
higher life cycle demands of today's new equipment designs. Lockbolts offer time
savings during assembly and long-term savings in reduced warranty claims. The
advantages offered by lockbolts are:
- Low Installed Cost The ease of assembly and
speed at which the lockbolts can be installed will reduce the final in-place
costs.
- Vibration and Fatigue Resistant As permanent
as a weld, a lockbolt resists loosening when all other methods fail.
- Consistent Installation Lockbolts are designed
to eliminate installation errors caused by operators or tools.
- Reduced Rework and Warranty Costs Lockbolts
are designed to install properly every time and to stay tight in the
application.
Installation
The installation of Avdel Cherry lockbolts is
fast and precise with the use of our hydra-pneumatic tooling.
- The lockbolt is inserted into the prepared
hole.
- The collar is placed on the lockbolt.
- The tool pulls on the tail of the bolt,
drawing the sheets together and forming the collar into the locking grooves.
- After the collar is completely formed onto the
bolt, the tool continues to pull until the tail of the bolt is tensioned
off.
Selecting the Proper Fastener
- Select the proper diameter for the hole size
specified.
- Determine the headstyle required for the
application.
- Measure the combined thickness of materials to
be joined.
- When using a flanged collar be sure to add the
flange thickness to the overall grip requirement to assure the proper length
lockbolt is used.
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Q Rivet
Internal friction lock
with positive retention. Good shear strength. Provides moderate hole fill and a
weather-resistant feature. Available in a variety of materials and headstyles. |
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T Rivet
Superior clamp-up
where there is sheet separation. Vibration resistant. Good shear and tensile.
External locking feature requires special nosetip. |
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Klamptite Rivet
External
locking feature requires special nosetip. Provides good vibration resistance.
Exceptional clamp-up strength. Wide grip range. Three-petal formation
compensates for oversized or irregular holes.
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Monobolt Rivet
Positive
external locking feature. Requires special nosetip. Good vibration and water
resistance. Superior hole fill and clamp-up. Available in a variety of materials
and headstyles.
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Interlock Rivet
Positive
internal mechanical locking feature with superior vibration and water
resistance. Available in a variety of materials and headstyles.
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Hemlock Rivet
High shear
strength, large blind-side footprint for use in thin sheet or brittle material
applications. Available in steel and aluminum.
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Maxlok Lockbolt
A versatile
lockbolt with an extensive grip range. Available in a variety of headstyles.
Available in steel and aluminum.
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Avdelok Lockbolt
A
high-strength, vibration-resistant lockbolt. Available in a variety of
headstyles and materials.
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Avtainer II/Avtainer
Wide
bearing headstyle for Fiberglass Reinforced Plywood (FRP) and composites.
Available with encapsulated head in various colors.
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Placement Tools
Breakstem
Fasteners I Structural Fastening I Speed
Fastening I Blind Threaded Inserts
Standard
Fasteners I Engineered Fastening I Military
Standards I Specials
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