Category: Metal stitching cylinder head

Metal Surgery of Cast Iron | Cast Iron Crack Repair

Introduction: Cast iron is a versatile and durable material used in various industries due to its excellent strength and heat resistance. However, over time, cast iron components can develop cracks, compromising their structural integrity and functionality.

To address this issue, metal surgery techniques can be employed to repair and restore cast iron parts effectively. In this article, we will delve into the world of cast iron crack repair, exploring different methods, best practices, and the importance of professional expertise.

We were approached by a leading shipping company operating in the Middle East. One of their auxiliary engine model Daihatsu 6DK20 met with an accident and the engine block window on which the cover is fixed was broken into pieces due to the failure of the connecting rod bolt.

RA Power Solutions Pvt. Ltd was appointed and we called for the photographs of the broken area of the engine block with dimensions which are pasted below.

Broken Area of Engine Block with Dimesions
Broken Area of Engine Block with Dimensions

 

Broken Area of Engine Block of Daihatsu 6DK20
Broken Area of the Engine Block of Daihatsu 6DK20

A rough drawing of the engine block broken area which is of cast iron was prepared by RA Power Solutions Pvt. Ltd. technicians as below.

Rough Drawing Prepared by our techncician of Engine Block Broken Area
Rough Drawing Prepared by our technician of Engine Block Broken Area

Since the time was short, we manufactured a casting measuring 15 x15 inches and 2 technicians boarded the vessel. The job of repairing of cast iron engine block was executed in a recorded minimum time. The engine is performing satisfactorily.

We have all the latest tooling available for repair of cast iron, and parts of the diesel engine to the original shape and profile. The metal stitching and metal locking process followed by us to repair the cast iron gives more strength than the original casting.

Cast iron crack repair requires a skilled approach, tailored to the type and severity of the cracks present. By employing metal surgery techniques like cold stitching, metal stitching, fusion welding, brazing, and stress relief heat treatment, it is possible to restore the functionality and structural integrity of cast iron components.

If you encounter cracked cast iron machinery or parts, consult us. We are professional metallurgical experts specializing in cast iron crack repair services, ensuring the best possible outcome.

To know more about metal stitching, cast iron crack repair, and metal surgery, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crack Repair By Metal Stitching | Advantages Of Metal locking And Metal Stitching

Metal Stitching Engine Block RA Power Solutions Pvt. Ltd. undertakes repair of crack casting which is broken into pieces by metal stitching and metal locking process. The company has executed successfully the repair of more than 600 nos. of cracked engine blocks, cast iron cold metal stitching, turbine casing, turbocharger casings, gearbox housings, etc. in the last 4 decades.

It is proven that the repair of cracks in cast iron or cast steel, castings is successful by metal stitching and metal locking process in comparison to the old welding process which was followed.

The advantages of crack repair by metal stitching and metal locking process are as follows:

  • Repair of cracks in the engine block, cylinder heads, and turbines can be undertaken by metal stitching and metal locking process on-site without disassembly of the equipment. This process of repair saves downtime and is cost-effective.
  • Metal lock and metal stitching process provide an excellent expansion joint for engine parts like cylinder liners, crankcases, and cylinder heads which are subject to thermal and mechanical stresses. The main advantage of the repair of cracks by metal stitching and metal locking process is that no stresses are developed and the alignment is maintained with original surfaces as the lack of heat produces no distortion.
  • The procedure and process of repair of cracks by metal stitching and metal locking are accepted by various classes and inspection agencies.
  • The process of metal locking and metal stitching is cold, no heat is generated and in most cases, there is no need to replace heavy and expensive parts.

Metal Stitching Of Engine Block

RA Power Solutions Pvt. Ltd. undertakes the repair of cracked or damaged engine blocks by metal locking, metal stitching, and metal surgery process. It is possible to undertake the repair of damaged or cracked engine blocks onsite manufactured out of the following base metal:

  • Cast steel
  • Aluminium casting
  • Ductile iron
  • Cast iron

With the introduction of modern technology and processes, the repair of cracks in heavy-duty cast iron components by welding is not recommended as the welding process generates heat and unwanted stresses in the cast iron component resulting in serious damage to the cast iron component.

The engine block repair by metal locking, metal stitching of engine block, and metal surgery process is the proven method of repair of cracks or damaged heavy components. In most cases after engine block repair, no machining is required.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions). He has forty years of experience in the field of engine repair and is a technical adviser to various shipping and heavy industries based all over the world.

For more information on the Metal lock and metal stitching, metal locking process, metal stitching of castings, and metal stitching of engine block and cold metal stitching, crack repair by metal stitching, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Metal Stitching and Metal Locking Process
Metal Stitching and Metal Locking Process
Translate »