DETERMINATION OF THE SINTERING DWELL TIME OF GEARING IRON BASED COMPOSITION BY USING 900 KHZ INDUCTION SYSTEM

Öz

In this study, iron based powder metal (PM) compacts are sintered by two different sintering methods. One of the sintering methods is conventional sintering, 2kW atmosphere controlled oven is used in the sintering application. TM compacts are sintered at 1120°C for 30 minutes.  In the study other used sintering method is induction which is a novel and fast. PM compacts are sintered at a temperature of 1120°C for 1 to 10 minutes using a 900 kHz ultra-high frequency induction system (UHFIS) with a power of 2.8kW. Hardness, density and microstructure images of PM compacts are examined and compared each other. When the obtained results are evaluated, 30 minutes conventional sintered PM compacts test results’ are reached in 5 minutes using by UHFIS. Thus, iron-based PM compacts are sintered in 6 times less dwell time while using the induction system.

Anahtar Kelimeler

• Iron,PM,Induction,UHFIS,Sintering

Abstract

Kaynakça

1. 1. Çavdar, U., Atik, E., and Ataş, A., (2014). Mechanical, Properties and Hardness Results of the Medium Frequency Induction Sintered Iron Based Powder Metal Bushin. Science of Sintering, 46, 2, 195-203.
2. 2. Çavdar, U., Atik, E., and Akgül, M.B., (2014). Magnetic-Thermal Analysis and Rapid Consolidation of 3 wt.% Cu Mixed Iron Based Powder Metal Compacts Sintered by medium frequency induction heated system. Powder Metallurgy and Metal Ceramics, 53, 3-4, 191-198.
3. 3. Çavdar, U. and Atik, E., (2014). Investigation of Conventional and Induction Sintered Iron and Iron Based Powder Metal Compacts. JOM, 66, 6, 1027- 1034.
4. 4. Gökozan, H., Taştan, M., Taşkın, S., Sarı Çavdar, and P., Çavdar, U., (2016). Comparatıve Energy Consumptıon Analyses Of An Ultra Hıgh Frequency Inductıon Heatıng System For İnduction Heating, Welding And Sintering Applıcatıons. Materials testing, 58, 11-12, 1009-1013, 2016.
5. 5. Sari Çavdar, P. and Çavdar, U., (2015). The Evaluation of Different Environments in Ultra-High Frequency Induction Sintered Powder Metal Compacts. Revista de metalurgia 51(1), e036.
6. 6. Çavdar, U., (2014). Mechanical Properties of Hot Forged ANSI 1050 Steel. Materials Testing, 56, 3, 258-212.
7. 7. Tastan, M., Gökozan, H., Taşkın, S., and Çavdar, U., (2015). Comparative Energy Consumption Analyses of an Ultra High Frequency Induction Heating System for Material Processing Applications. Revista de Metalurgia 51(3), e046.
8. 8. Gökozan, H., Taştan, M., Taşkın, S., Sarı Çavdar, P., and Çavdar, U., (2016). Comparatıve Energy Consumptıon Analyses of An Ultra Hıgh Frequency Inductıon Heatıng System For Induction Heating, Welding And Sintering Applıcatıons. Materials testing, 58, 11-12, 1009-1013.

9. 9. Çavdar, U. and Gülşahin, İ., (2014). Ultra High Frequency Induction Welding of Powder Metal Compacts. Revista de Metalurgia, 50 (2), e016.
10. 10. Çavdar, U., Yalamaç, E., and Gülşahin, İ., (2014). Effects of Surface Finishing on the Mechanical Properties of Induction Welded Iron Based Sintered Compacts. Materials Testing, 56, 10, 852–857.
11. 11. Çavdar, U. and Kuşoğlu, İ.M., (2014). Effects of Coil Design on Induction Welding Of Sintered Iron Based Compacts. Materials Testing, 56, 11-12, 973–979.
12. 12. Ilia, E., Tutton, K., and O’Neill, M., (2005). Forging a way towards a Better Mix of PM Automotive Steels. Metal Powder Report, 60, 3, 38-44.
13. 13. Fais, A., (2017). A faster FAST: Electro-Sinter-Forging. Metal Powder Report, Article in Press, 2017. https://doi.org/10.1016/j.mprp.2017.06.001
14. 14. Cavdar, U. and Atik, E., (2014). Properties of Boronized, Carbonitrided and Steamed Iron-Based Compacts. Materials Testing 56 (2), 126–130.