Austempered Ductile Iron (ADI) Technology




ADI offers the best combination of lower costs, design flexibility, good machinability, higher strength-to-weight ratio, good toughness, good wear resistance and fatigue strength. ADI offers this superior combination of properties because it has all the advantages of a ductile iron casting plus mechanical properties which are superior to all cast irons and most steel forgings and castings as a result of the special heat-treatment process.

Total energy consumption for ADI products is of much lower magnitude than that of products manufactured through the forging route. The manufacturing process involved for development of ADI components consumes much less energy and is less polluting in nature, resulting in a cleaner technology. 
Considering the above factors, the manufacturing cost for ADI crankshaft will be drastically reduced in large scale production.




Central Mechanical Engineering Research Institute
Durgapur-713209, India