Ford F-150 2015 Structural Repair Training Course page 43

Textbook
not￿be￿concerns￿for￿thinning￿of
the￿panel￿from￿grinding.￿If￿a￿rivet
is￿being￿removed￿by￿grinding￿off
the￿backside￿and punching￿it out,
always￿support￿the￿area￿where￿the
rivet￿is￿being￿removed.￿Support
can￿easily￿be￿done￿by￿using￿a
socket￿and￿ratchet￿pressed￿against
the￿area￿where￿the￿rivet￿is￿being
removed.
Shown￿in￿the￿picture￿are￿examples￿(left￿to￿right)￿of
an￿SPR,￿solid,￿hemlock,￿and￿monobolt￿rivets.
When￿deciding￿what￿reattachment￿rivet
should￿be￿used,￿follow￿the￿vehicle￿makers
instructions.￿If￿there￿are￿no￿instructions
from￿the￿vehicle￿maker,￿considerations￿for
rivet￿use include,￿but￿are￿not￿limited￿to:
access￿to￿the￿backside.
•
having￿enough￿room￿to￿install￿an
•
SPR￿between￿the￿original￿rivet
locations.
glass￿or￿weatherstrip￿applications.
•
Rivets￿must￿not￿be￿installed￿without
adhesive.
2015￿Ford￿F-150￿Structural￿Repair￿Training￿Course￿(FOR06)
Module￿3￿-￿Aluminum￿Joining￿Methods
It￿is￿important￿to￿understand￿the￿cure,￿wet,￿and
clamp￿times￿when￿working￿with￿adhesive.
When￿working￿with￿adhesives,
application￿considerations￿include:
temperature. As￿the￿temperature
•
increases,￿open,￿clamp,￿and￿cure
times￿decrease.￿The￿reverse￿is￿true
when￿the￿temperature￿decreases.
wet￿/￿working￿time,￿also￿known
•
as￿open￿time.￿The￿larger￿the￿part
or￿assembly,￿more￿open￿time￿is
generally￿needed￿to￿allow￿for￿extra
time￿for￿product￿application￿and
panel￿installation.
bond-line￿thickness.￿Bond-line
•
thickness￿is￿the￿recommended
thickness￿of￿the￿adhesive￿in￿the
mating￿flange￿after￿clamping. Most
adhesives￿contain￿glass￿beads￿that
control￿this￿thickness.
clamp￿/￿handling time.￿This￿is￿the
•
amount￿of￿time￿that￿the panels
must remain￿clamped￿per￿product
makers'￿instructions.
cure￿time.￿Cure￿time￿is￿the￿time
•
required￿for￿an￿adhesive￿to cure
at￿a￿specific￿temperature￿and
humidity to￿achieve￿full￿strength.
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