Crack Repair by Metal Surgery

RA Power Solutions Pvt. Ltd. was called by a leading forging company based in western part of India manufacturing open forgings for heavy engineering plants. One of the operation involved use of clear space pneumatic hammer which they imported from massey of UK.

Due to constant use of forging hammer and its age the pneumatic chamber of the hammer developed a crack measuring 69 inches. The whole plant due to non operation of this critical equipment was on stand still. The pneumatic chamber is manufactured out of grey cast iron. The company tried to repair the crack by welding process and engaged a leading company to execute the repairs. The crack repair of the cast iron pneumatic chamber was not successful. RA Power Solutions Pvt. Ltd. was called to repair the crack by metal surgery process.

Materials Used in Metal Stitching/Metal Locking Process
                       Materials Used in Metal Stitching/Metal Locking Process

RA Power Solutions Pvt. Ltd. initially carried out magnetic particle test (MPI) and dye penetrant test of cast iron pneumatic chamber to check the exact length and the profile of the crack developed. The paint including red oxide applied on the cast iron pneumatic chamber was removed completely. The crack of 69 inches was repaired by our technicians by metal stitching and metal locking process.

The keys, master metal locks and all consumables used for metal surgery were imported from UK. After the completion of metal stitching and metal locking operations, the chemicals were applied to stop the air leakage from the pneumatic chamber.

Metal Stitching/Metal Locking Procedure
                                 Metal Stitching/Metal Locking Procedure

This process of metal surgery followed by us for repair of crack in cast iron is cold process, no heat is generated and is proven method for successful repair of crack in cast iron casting.

We have more than 37 years of experience of executing crack repair in cast iron by metal surgery and have experienced technicians available to execute the crack repair onsite in minimum time and cost.

Crack Repair by Metal Surgery
                            Crack Repair by Metal Surgery

 

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