Process for sintering powder metal components

The method of sintering a powder metal green part which comprises powder metal, a powder metal alloy, or a powder metal composition, by subjecting it to microwave energy for a predetermined time wherein the microwave frequency is 2.45 GHz and the time is less than 1 hour.

The method of sintering a powder metal green part having the metal composition Fe—Ni, with or without carbon, by subjecting it to microwave energy for a predetermined time to form a dense metal part wherein the microwave energy has a frequency between 0.5 GHz and 10 GHz.

The method of sintering a powder metal green part having the metal composition Fe+Cu, with or without carbon, by subjecting it to microwave energy for a predetermined time to form a dense metal part wherein the microwave energy has a frequency between 0.5 GHz and 10 GHz.

The method of sintering a powder metal green part having the metal composition Fe+Cu.(2%)+Graphite(0.8%), by subjecting it to microwave energy for between 10 and 30 minutes at a temperature between 1100° C. and 1250° C. to form a dense metal part wherein the microwave energy has a frequency between 0.5 GHz and 10 GHz.

The method of sintering a powder metal green part of cobalt by subjecting it to microwave energy for approximately ten minutes at approximately 1100° C. to form a dense metal part wherein the microwave energy has a frequency between 0.5 GHz and 10 GHz.