aluminum bonding to carbon fiber
aluminum bonding to carbon fiber
(OP)
I am having issues bonding an aluminum plate to a carbon fiber structure. It is a 2"x3" aluminum plate bonded inside a carbon fiber square. The aluminum plate sees a fair amount of shock due to the application. The seperation occurs between both the aluminum plate and the adhesive, and the adhesive and carbon fiber.





RE: aluminum bonding to carbon fiber
Is the carbon fiber structure pure carbon or carbon in a polymer?
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
http://www.3m.com/us/mfg_industrial/adhesives/pdf/2214dp.pdf
RE: aluminum bonding to carbon fiber
This should give a better surface for the adhesive to bond too.
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
RE: aluminum bonding to carbon fiber
How much is "a fare amount of shock"? It could be that the loads involved are higher than you believe?
Work with an adhesive supplier. I would suggest the same manufacturer that makes the adhesive used in your carbon-fiber laminate, as they should have an advantage in knowing what will stick best to that.
Could the plate be molded in when the laminate is produced rather than applied as a secondary operation?
RE: aluminum bonding to carbon fiber
On aircraft, we bond thin (0.012 - 0.020) aluminum sheet to graphite parts with the FG Barrier ply and an adhesive or a thin coat of sealant. This is for lightning protection. It's done on most Flight Controls all the time.
RE: aluminum bonding to carbon fiber
If finding a suitable adhesive that bonds well to both materials is a problem then a sandwich solution may be your answer eg; adhesive 1 between the plate and another material and adhesive 2 between the material and the carbon fibre.
Are mechanical fasteners an option?
If you can solve the adhesive problem then perhaps increasing the surface area on both the carbon fibre and plate bonded surfaces could improve strength. East - west and north - south channel groves would achieve this.