Repair heater hose from bonded heater hose assembly

Thanxs pushrod, how do I get this metal piece unbonded from the rubber and steel part without damaging the steel portion that goes into the manifold ??

Dremel tool with cut off wheel - or equivalent - cut only the outer metal jacket in two places - 180° apart. That’s actually a crimped on clamp - rubber hose is inside that metal jacket - ok if hose gets cut - just try not to damage the ‘inner’ portion of the fitting that the hose is connected to. New hose can be clamped to fitting with conventional hose clamp. Good luck!