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

Yıl 2018, Cilt: 13 Sayı: 1, 64 - 69, 19.01.2018

Uğur Çavdar

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

Kaynakça

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