Cast Iron Aluminium Crack Repair | Cracked Aluminium Cylinder Head Repair

Gone are the days when, in case of cracks in aluminium cast components were rejected and replaced by new ones, as it was not possible to undertake the crack repair in aluminium cast components or the components which used to get damaged due to accidents. The welding process in some cases was used for aluminium crack repair, but it was not a proven method or the right technology for repair, as results were not always satisfactory.

RA Power Solutions undertakes aluminium crack repair by metal stitching, metal locking and metal surgery process which is a cold process of repair of cracks of aluminium components, cast iron components, and cast steel.

Generally, all the heavy components manufactured out of aluminium casting can be repaired by metal stitching, metal locking and metal surgery.

Cracked Aluminium Cylinder Head Repair

It is not possible to undertake repair of cracks & damage to cylinder head, cylinder liner, and components manufactured of aluminium or cast iron by welding process due to the generation of heat.

A few of these are described below:-

• Crack repair of aluminium cast pistons.
• Crack repair of the engine block manufactured out of aluminium alloys.
• Damaged or cracked pump casings, turbocharger casings, and turbine casings can be repaired by the metal locking and stitching process.
• Repair of cylinder liners and cylinder heads manufactured out of cast iron or aluminium.
• Aluminium Piston Crack Repair.

In order to undertake aluminium crack repair or repair of damaged aluminium casting, cast iron or steel casting components.

We follow the procedure given below:-

• Crack detection.
• It is important that prior to starting the process of crack repair, the cracks are properly identified, and the location is marked. The cracks are checked by the following methods.
• Visual Inspection
• Dye penetrant test of cracks in the damaged area.
• Crack detection by MPI using the high-intensity magnaflox torch.
• Pressure Testing

We strongly recommend that in case of red oxide or paint on the surface of a damaged component, it should be thoroughly removed.

• Aluminium Crack Repair by Metal Stitching and Metal Locking process

After the location of the crack or cracks is identified, the cracks are repaired by metal stitching and metal locking process.

We use the following special pins and locks for metal locking:-

• Standard threaded pins – They are straight-thread L-Series pins. They are designed to seal by interference fit after threads. The threaded pins exert spreading pressure for sealing, seat retention, and crack removal.
• Spiral thread hooks for radial drawing force are used, which creates structural integrity, seals leaks, and also prevents crack propagation.

The repair of cracks in aluminium cast components requires special tools and experience as the aluminium casting cuts easier than the cast iron, RA Power Solutions regularly undertakes repair of aluminium cast iron and steel casting components and has executed repairs successfully in countries like Dubai, Greece, Maldives, Malaysia, Singapore, Madagascar, Nigeria, South America, UAE, Germany, Monaco, Qatar, Sri Lanka, Bangladesh, Italy, Spain, Czech Republic, UK, Philippines, Singapore etc.

For more information on Piston Repair by Metal Locking, Turbine casing crack repair on-site, Cracked Aluminium Cylinder Head Repair, and Cylinder liner head repair, contact rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

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