Sintering of Iron Powders by Resistance Heating Technique

Abstract

In this study, powder metal samples of 15x15x4 mm dimensions of Fe powders were produced at different pressures (650,850,1050 MPa). They were sintered in atmospheric environment with the help of resistance sintering method applied for the first time using electric resistance welding machine. The sintered and green densities of the powder metal samples were determined and their sinterability in the unprotected environment was examined. In addition, the effects of electric resistance heating technique on sintering were investigated by performing hardness measurement and microscopic examination of sintered samples. As a conclusion, powder metal samples were sintered successfully with the electric resistance welding technique in an unprotected environment and high-density values such as 98% were obtained.

Keywords

• Electric resistance
• Welding
• Powder metallurgy
• Sintering

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