Browsing by Subject "Sintering process"

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    Sintering with induction
    (European Powder Metallurgy Association (EPMA), 2008) Çavdar U.; Atik E.
    In this study; iron powder metals were sintered via induction heating process. Sintering process has been achieved with an induction generator that has 10 kW power supply and 20-30 kHz frequency. ASC10029 grade Iron powder was mixed with zinc stearat with a ratio of %0.8 of iron mass by weight. Several duration in the range of 5-10 minutes was studied during induction sintering. Transverse rupture strength, hardness and micro structural investigations were done. Obtained mechanical properties and microstructures were compared with traditionally sintered samples. At the end of the induction sintering process for a period of 5 minutes, the maximum stress values that were gotten from classically ovensintered samples for a period of 30 minutes are reached.
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    Induction sintering of Fe-2Cu PM compacts
    (European Powder Metallurgy Association (EPMA), 2009) Çavdar U.; Atik E.
    Fe powders mixed with 2% Cu by weight were compacted with 600 MPa to form 3-point bending samples having dimensions of 10×10×55 mm. Compacted powders were sintered by using medium-low frequency (30 kHz, 12kW) induction energy in conveyor system. Sintering process was completed in several sintering durations from 400 to 1300 seconds at 1120°C under atmospheric environment (open air). Micro structural and mechanical properties of sintered samples were investigated. Maximum stress for 3-point bending was achieved at 1000 seconds of sintering duration at 1120 °C. The mechanical properties of induction sintered samples were compared with conventionally sintered samples at 1120 °C for 30 minutes of sintering duration under argon atmosphere. The maximum stress values for induction sintered sample were nearly similar to conventionally sintered samples.