Carbon fiber and aluminium adhesion

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Carbon fiber and aluminium adhesion

Carbon fiber and aluminium adhesion

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Singhnishesh	S Singhnishesh posted 7 Years Ago HOT Topic Details
S Group: Forum Members Posts: 11, Visits: 12	aluminium plate is not adhering to a carbon fiber laminate.Is it because my aluminium surface is too smooth? I tried etching process to make it rough.But It did not work out well.Is sanding a better option than etching?
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f1rob	f1rob posted 7 Years Ago HOT Post Details
Group: Forum Members Posts: 237, Visits: 4.8K	Are you gluing the plate on ? Are you bonding it during manufacture Wet lay, infusion,pre preg ???
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Carbon fiber and aluminium adhesion

Singhnishesh - 7 Years Ago

When you say etch? What exactly do you mean? Its better to roughen up the ali surface with sand paper or other abrasives at least 240grit. Then clean with acetone and bond within a few hours.

scottracing - 7 Years Ago

By etching I mean using chromic acid to roughen the surface a bit

Singhnishesh - 7 Years Ago

Sanding would be easier and faster imo, Degrease first with acetone or degreaser, use fresh cloth after cleaning everytime till you dont see any more residue on your cloth, that way you are sure no.....

matthieutje65 - 7 Years Ago

Are you gluing the plate on ? Are you bonding it during manufacture Wet lay, infusion,pre preg ???

f1rob - 7 Years Ago

Im bonding an aluminium plate to a cf tube

Singhnishesh - 7 Years Ago

Is sanding enough? Is it used for making the surface rough or roving the oxide layers primarily... Also I'm using epoxy resin and hardener as adhesive... Thank you

Singhnishesh - 7 Years Ago

didnt know it was cf tube on a plate :) I would sand and clean the surface that will be bonded on the carbonfiber tube and the plate, but you can do whatever you want :D it's just how I would do it.....

matthieutje65 - 7 Years Ago

Sanding will be fine 80grits perfect,just blow down,decrease an bond If you really want a good bond drill a couple of holes an rivet the part on as you glue it

f1rob - 7 Years Ago

Is sanding enough to make the aluminium surface rough?

Singhnishesh - 7 Years Ago

If you want ultimate strength with aluminium and epoxy then sand it through the wet epoxy. Messy, but effective.

Zorbit - 6 Years Ago

Thank you for the reply "Blowdown ,decrease an bond?" Sorry i did not get you

Singhnishesh - 7 Years Ago

Sand Blow down with a air line if you have one Degrease (not decrease as auto correct put) Ideally wipe down with acetone Then bond

f1rob - 7 Years Ago

Thank you

Singhnishesh - 7 Years Ago

Sir Sanding doesnt make the surface that rough. Is it a problem? It just leaves scratches

Singhnishesh - 7 Years Ago

Are you rubbing down by hand ??? Ideally you should use a air tool ( 90deg die grinder) with a top of disc but by hand is just as good as long as the metal isn't shiny

f1rob - 7 Years Ago

Yes sir by hand 80 grit should suffice?

Singhnishesh - 7 Years Ago

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