Aircraft Parts - Remanufactured Crankcases

Surface Machining

Material around cracks and damaged areas is ground away to provide a clean metal base for welding
An aircraft engine crankcase is a structurally and metallurgically complex piece of material. Cracks may develop because of either damage or casting defects; a thrust surface may be worn or a bearing spun. The case must be either replaced or repaired.
Engine Components' proprietary repair process, Electro-Fusion® can restore the strength and integrity of a crankcase and do it at a fraction of the cost of replacement.

Initial Inspection

When a crankcase is received at Engine Components, it is carefully inspected visually, then submitted to a full submersion dye check to determine crack locations. Then it is Brinnel-checked to determine hardness

Grinding

Material around cracks and damaged areas is ground away to provide a clean metal base for welding

Heating

The crankcase is placed in an oven and the temperature is slowly increased to the optimum temperature for welding.

Electro-Fusion

®
The area around cracks is repaired with the Electro-Fusion® heli-arc welding process vibratory peening to increase density. The case is then allowed to cool in ambient air

Inspection #2

The crankcase is completely inspected again, Brinnel-checked and prepared for machining.

Internal Machining

Camshaft and crankshaft bearing surfaces are line-bored to guarantee engine smoothness and minimal wear.

Inspection #3

The final inspection assures that precise measurements of all critical elements have been met.

Warranty

The final step is to attach the EC Limited Warranty - 180 days/240 hours pro-rated to TBO