Reengineering of heat-treatment system for axle-shaft of racing cars

The system of heat-treatment operations, involved in the manufacture of alloy-steel axle-shafts, is reengineered and standardized to ensure quality-consistency as per international standards. The quality-engineering tool of Cause-and-Effect diagram/analysis is also applied in the reengineering technique. The heat-treatment temperatures and time-duration parameters are readjusted by their relationship to their mechanical properties. The Fe–Fe3C phase diagram was extensively referred in reengineering of the austenising temperature. The required hardness values were successfully achieved in the heat-treated axle-shafts as a result of this reengineering research and development.