Laser Cutting Aluminum Bonded Panels
Laser Cutting Aluminum Bonded Panels
(OP)
Hello:
I am a BSME in the Aerospace Industry who works with a lot of bonded assemblies. We have a fair amount of bonded panels to process that are composed of a .020 aluminum skin and a .012 aluminum skin, both bonded together with EA9628 adhesive. Each of these panels needs to have 300+ holes cut (drilled) into them. We wanted to use a CNC Laser to cut the holes (and part perimeter), but can not verify that the heat affected zones do not interfere with the adhesive. Currently, we are projecting using drill templates and drilling every hole. This, obviously, is not our first choice, as it is time consuming compared to an automated process. Does anyone have any suggestions?
I am a BSME in the Aerospace Industry who works with a lot of bonded assemblies. We have a fair amount of bonded panels to process that are composed of a .020 aluminum skin and a .012 aluminum skin, both bonded together with EA9628 adhesive. Each of these panels needs to have 300+ holes cut (drilled) into them. We wanted to use a CNC Laser to cut the holes (and part perimeter), but can not verify that the heat affected zones do not interfere with the adhesive. Currently, we are projecting using drill templates and drilling every hole. This, obviously, is not our first choice, as it is time consuming compared to an automated process. Does anyone have any suggestions?





RE: Laser Cutting Aluminum Bonded Panels
RE: Laser Cutting Aluminum Bonded Panels
RE: Laser Cutting Aluminum Bonded Panels
Have you tried testing a part of the adherend and the adhesive to see what effect there are?
Also look at this link.
Shear Stress-Strain Data for Structural Adhesives
Regards
RE: Laser Cutting Aluminum Bonded Panels
I might have some suggestions, but I need you to answer some questions first:
(1) what is size of panels?
(2) are panels flat or curvilinear?
(3) what is size of holes?
(4) how thick are panels?
TygerDawg
RE: Laser Cutting Aluminum Bonded Panels
2) The panels are flat.
3) The holes vary from .098" to .203".
4) The panels are .012" + .020" + .005 (adhesive) = app. .037"
Thanks.
RE: Laser Cutting Aluminum Bonded Panels
tygerdawg@excite.com
Be sure to put "Tully" in the subject line somewhere I don't treat it as spam.
Cheers
TygerDawg
RE: Laser Cutting Aluminum Bonded Panels
Andrew Hall
PEI, Canada