Any idea about 3-6kw PSU in the 48-60VDC range to power 2500-5000W ZVS induction heat

[Boyan Silyavski]

A friend of mine makes knves for a living and was looking into induction heating for his workshop but he gave up on the idea as if induction heating was used for hardening the material had to be long soak annealed and the cooling time was too long.

Depends on the material. Some could have such a heat treating curve, that this method is impossible or impossible to control. But according to this study, the exact steel i will be using even benefits much from using that method.

Normally the makers will use 15-40kw induction to forge meta, quick heat to temperatures for hammering it.

[ngwagwa]

Depends on the material. Some could have such a heat treating curve, that this method is impossible or impossible to control. But according to this study, the exact steel i will be using even benefits much from using that method.

Normally the makers will use 15-40kw induction to forge meta, quick heat to temperatures for hammering it.

The study you link to used conventional heating to normalize the material. They quote a time of 30 minutes at 870 °C but don't mention the cooling down rate or time.

[Boyan Silyavski]

The study you link to used conventional heating to normalize the material. They quote a time of 30 minutes at 870 °C but don't mention the cooling down rate or time.

The material comes annealed and i will machine it, so no stress here. Its oil quenched, oil at 40C

[ngwagwa]

The material comes annealed and i will machine it, so no stress here. Its oil quenched, oil at 40C

Go for it but there is a big difference between annealing and normalizing.