An aerospace subcontractor required a robust process for injecting thick epoxy into a less than 0.010" gap between several sizes of ferrules and tube sets. After injection, the excess epoxy was removed to form a smooth fillet. The epoxy took 8 hours to cure and the ferrule/tube sets must be held rigidly during this time. After curing, the epoxy must be free of voids, or the entire assembly will be scrapped.
Creative Automation designed and built a system to precisely hold the ferrule and tube sets concentric while injecting epoxy into the gap. The system consisted of a holding fixture that held tooling for each size of ferrule/tube sets rigidly, maintaining the parts relationship during the curing process.