Induction Billet, Forging and Hot Shearing Equipment


Induction ForgingA billet is raw metal that is typically through heated prior to forging the material for the manufacturing of finished metal products. Induction heating equipment is used to process billets for this purpose, as well has the heating of bar ends for the forming of all types of parts, such as screw drivers, fastener heads, automotive components and many other items used in everyday life.

Induction forging is the use of an induction generator to pre-heat metal prior to using a press or a hammer.  In order for the metal to be malleable enough to be forged, it must reach a temperature between 2,010 (°F) and 2,190 (°F).  The use of induction forging and hot shearing equipment can achieve that end in an energy efficient manner.   

Induction Forging Machines & Equipment

RDO supplies the DuraPowerSeries, which uses the ideal power level and frequency for induction forging and shearing.  This is an extremely versatile series, built using solid-state IGBT technology in power supplies from 10 kW to 500 kW and frequency ranges from 1 to 80 KHz.  All systems are connected to a remote heat station which can bring you closer to the work and can potentially eliminate expensive buss work or coils connected to flex leads, however coils can be connected directly to buss work or flexible cables as well.  These systems can be produced for the customer that has a wide range of applications or the customer that has very precise specifications as to power, frequency and coil design.

Induction Forging and Heat ShearingThe DuraPowerSeries frequency converter design is based on a hybrid LLC series parallel oscillating circuit.  The values of the power capacitors and the induction coil determine the working frequency.  This induction forging and hot shearing equipment does not allow the load current to flow through the semiconductors (IGBT’s), which translates into low IGBT losses.  The working frequency is equal to the resonant frequency of the oscillating circuit, which leads to no switching losses for the H-Bridge IGBT’s.  Precise power control is part of the design, based on feedback from the temperature proportional references.  The equipment runs with input voltages between 220-460 volts, the optimal operating environment for the semiconductors.

Please do not hesitate to contact an RDO Applications Engineer today to see how Induction Heating can benefit your application.


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