P/M Steels Manufactured from Cast Iron Swarf Powder.

The feasibility of cast iron swarf utilization as a raw material in the powder metallurgy industry has been studied. This work derives the possibility of making steel components from cast iron swarf powder with P/M techniques. Cast iron swarfs have been used as a direct additive in the manufacturing of steels, without making any other preliminary processes different from the pulverization to the desired size distribution. In order to get a steel composition, the cast iron swarf powder has been diluted in high purity iron powder to reduce the cast iron carbon content.It has been tried not to modify the industrial conditions with the objective of simplifying the possible reuse of swarfs in the processes already existing in powder metallurgy.