Ford F-150 2015 Structural Repair Training Course page 39

Textbook
where￿SPRs￿and￿punch￿rivets￿were￿used
for￿new￿vehicle￿assembly.
Countersink
When￿countersunk￿rivets￿are￿installed,
they￿must￿be￿installed￿into￿a￿panel￿that
has￿a￿hole￿with￿a￿countersink￿to￿match
the￿shoulders￿of￿the￿rivet.￿To￿make￿a
countersunk￿hole,￿a￿hand-operated
dimpling￿tool￿or￿countersink￿bit that
matches￿the￿rivet￿head￿angle￿should￿be
used.￿If￿a￿countersunk￿rivet￿is￿installed
in￿a￿countersunk￿hole￿that￿is￿greater￿or
less than￿the￿angle￿of￿the￿rivet,￿there
will￿uneven￿contact￿along￿the￿rivet
head, which￿causes￿poor￿sealing￿and￿a
weak￿joint.￿100°￿rivets￿are￿the￿common
size￿with￿other￿shoulders￿varying￿in
degree.
Installation￿Tools
Tools￿used￿for￿installing￿solid￿rivets
include:
an￿air￿hammer￿and￿bucking￿bar.
•
a￿hydraulic￿or￿pneumatic￿squeeze-
•
type￿rivet￿tool.
Installation￿and￿Inspection
When￿a￿solid￿rivet￿is￿installed,￿the￿rivet
is￿installed￿in￿a￿hole￿that￿is￿just￿slightly
larger￿than￿the￿shank￿of￿the￿rivet.￿First,￿the
hole￿is￿drilled,￿then￿is￿deburred,￿followed
by￿countersinking.
2015￿Ford￿F-150￿Structural￿Repair￿Training￿Course￿(FOR06)
Module￿3￿-￿Aluminum￿Joining￿Methods
Following￿installation,￿the￿solid￿rivet￿is
inspected￿for￿cracks￿or￿deformation￿of￿the
head￿or￿bucktail.￿If￿the￿head￿does￿not￿fit
flush￿against￿the￿panels,￿the￿rivet￿must￿be
removed￿and￿a￿new￿rivet installed.
Shown￿is￿a￿chart￿identifying￿the￿original￿attachment
method￿with￿some￿replacement￿attachment￿choices.
Blind￿rivets￿are￿used￿for￿both￿new￿vehicle
construction￿and￿collision￿repairs.
Hemlock￿or￿monobolt￿rivets￿with￿a
protruding￿or￿countersunk￿head￿may￿be
used.
Blind￿rivets￿may￿be￿used:
in￿locations￿where￿the￿vehicle
•
maker￿originally￿used￿welds.
where￿a￿clinch￿is￿located.￿If￿a
•
factory￿clinch￿comes￿loose,￿a
blind￿rivet￿can￿be￿used￿to￿lock
the￿panels￿back￿together.￿This￿is
done￿by￿drilling￿out￿the￿clinch
and￿installing￿a￿rivet￿with￿adhesive
where￿the￿clinch￿was￿located.
where￿the￿vehicle￿maker￿installed
•
blind￿rivets.
where￿an￿SPR￿was￿used,￿but￿there
•
is￿no￿access￿to￿the￿backside￿of￿the
panel￿for￿reinstalling￿an￿SPR.
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