Metal Additive Manufacturing enables quick repair of marine turbochargers

November 2, 2015

November 2, 2015

Turbocharger specialist Tru-Marine, headquartered in Singapore, has developed a proprietary Additive Manufacturing process for the repair of turbocharger nozzle rings. The company, with operations is Singapore, China, United Arab Emirites, The Netherlands and USA, focuses on the maintenance, repair, overhaul and supply of turbochargers in marine, offshore, power plant and locomotive applications.


Tru-Marine has developed a proprietary AM process

for the repair of turbocharger nozzle rings

It has been reported that damaged nozzle rings can now be reclaimed to a ‘like-new’ condition as and when required, either as an intermediary option or as a reconditioned spare part, within a fraction of the time required by conventional repair methods.

According to Tru-Marine the premature erosion of nozzle rings is a commonly reported problem and in many situations spare part replacements result in long lead times and high costs. The company’s AM process reconstructs worn areas directly on to the original component.


 Erosion can result in lengthy repair times

Tru-Marine stated that components can be made of multiple metal alloys or exotic materials to improve their physical properties in the areas that are necessary. Additive Manufacturing also allows simpler designs that do not incorporate fasteners or welded seams, thus enhancing performance and reducing production and delivery times.

With positive results in tensile strength and microstructure laboratory examinations, the AM nozzle rings have been tested to be suitable for turbocharger applications. Tru-Marine’s breakthrough in this application has received support from government agencies and local research institutions. 

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