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Induction Forging Steel Rod End
Description
Induction Forging Steel Rod End With Induction Heating Machine
Objective To heat the ends of steel rods to 1800ĀŗF prior to a forgingĀ operation. Processing of the rods includes heating, pressing inĀ a two part die to forge the push rod end, and a final heating inĀ a channel coil to temper the rods and relieve the forgingĀ stresses. The customer needs to process rods of different
diameter between 1/8″ and 1/2″. The rod temperature must beĀ above 1400ĀŗF in the center while the outer edge can be asĀ high as 1900ĀŗF.
Material Steel rods of different diameters from 1/8″ to 1/2″
Temperature 1800ĀŗF
Frequency 50Ā kHz
Equipment DW-HF-45kW output solid state induction power supplyĀ including a remote heat station containing 2 capacitors totalingĀ 0.5 Ī¼F, along with a 6 turn (3 over 3) helical type coil.
Process The DW-HF-45kWĀ output solid state induction powerĀ supply was found to achieve the following results:
Results ā¢ Both diameter steel rods reached 1800ĀŗF in less than 5Ā seconds as measured by an optical pyrometer.
ā¢ The 1/2″ rod was limited by the physical properties ofĀ steel with the time required to transfer the heat from theĀ outside edge of the bar to the center to raise theĀ temperature to 1400ĀŗF without melting the bar surface.Ā The 1/8″ rod heating was limited by the inductionĀ heating efficiency at 80 kHz. Larger diameter barsĀ progressively heated faster up to the thermalĀ conductivity restrictions.