The Metalock Process is a repair system based on fundamental engineering principles, an emergency service on offer throughout the marine & industrial world.

The Metalock Process is accepted as the method of repairing all cracked, broken and damaged castings in Cast Iron, Aluminum and Steel for a wide range of industries in a multitude of applications.

The repair consists of peening into prepared apertures, layers of Metalock Keys.  The Keys are formed into a multi-dumbell shape from special nickel alloys.  Being highly ductile they can be peened into a metal-to-metal condition and become almost integral with the parent metal of the component under repair.  Metalock Keys are manufactured in a variety of sizes to suit each individual job.  The high strength of the Metalock Keys ensures the return of a high percentage of the original strength.

The advantages of the Metalock repair are that no heat stresses are introduced, no distortion occurs and in many instances machining is unnecessary.  It is valuable in emergency situations, reduces downtime and avoids the replacement of expensive castings.

Repairs can be carried out in-situ or in our workshops.

General area of application:

• Diesel and Gas Engine Blocks
• Housings
• Cylinder Heads
• Gear Castings
• All cast iron and cast steel components which are difficult to weld

Metalock Process

• Using a drill jig, rows of blind holes are drilled perpendicular to the direction of the crack, each row to act as a key.

• The intermediate partitions are removed with pneumatic chisel.

• Metalock keys are driven into the openings and caulked

•  Holes for Metalock screws are drilled along the crack between the keys.  

• The screws are fitted so close together that they overlap

• Finally, the entire installation is caulked to ensure stability and pressure tightness.

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