joining two halves to make a __strong handle
joining two halves to make a __strong handle
(OP)
I've got a handle design made from ABS plastic- we glue two
mirror image halves together. There are pins and holes, and an
internal web that can take a lot of shear when it's all glued
together:
http://www.kettlestack.com//images/handleR7.jpg (it's about 7" wide)
Presently, the pins are not press fit, we rely on the solvent glue for
the attachment.
Thanks for reading,
if we redid the part in aluminum (and assuming)
external rivets and screws are no good,
something roughly along the lines of the linked picture,
pressfit would be ok,
the bond must be strong and permanent,
what's the best way for aluminum parts to be attached/bonded together ?





RE: joining two halves to make a __strong handle
http://www.3m.com/us/mfg_industrial/adhesives/jhtm...
http://www/loctite.com
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: joining two halves to make a __strong handle
I like an epoxy for this. You can get ones that work very well with Al.
A 'B' stage epoxy can be applied without mixing and then heat cured. You can also use systems where you apply a chemical activator to one part and the adhesive to the other. When they are mated the cure will start.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: joining two halves to make a __strong handle
check the website
http://www.mpsupplies.com/3mepoxyadhesive2216.html
Putting Human Factor Back in Engineering
RE: joining two halves to make a __strong handle
Hi,
There are no temperature issues- It's a weightlifting device
(kettlestack.com). Strengthwise, the plastic works fine, but some of our
customers are asking for a more authentic feel, so I'm checking out the possibility.
I like the idea of activator on one half, epoxy on the other- easier clean up.
I'm still trying to source/price the cast aluminum part competitively
w.r.t. the injection molded plastic part.
Thanks for all the informed replies.
RE: joining two halves to make a __strong handle
Welding?
What does suspend the bells/stacks? A cable?
RE: joining two halves to make a __strong handle
no Rivets !?!?, I should have known better than to assert a
precondition on an _open engineering forum
W.r.t. rivets and/or bolts, I'm concerned about
finish:
external rivets interrupting the outside surface, We
can't put the bolts (or rivets) on the centerline of
the part, so they'll have to be deeply recessed
i.o.t. stay below the surface.
cost: (the alignment pins are essential free),
what are the labor loaded costs to using rivets
durability, can rivets work free over time ?
So in hindsight there are marketing issues, but they're driven by the
customers finish requirements - we haven't had any broken or replaced
items yet.
Can rivets address these issues effectively ?