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I Forge Iron

Pressing Hammer Eyes?

Warren Nakkela

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Now try this on for size:
I take this 30 ton powered hydraulic press and screw a punch into the end of the ram. The punch is of hot working steel shaped to the inside bore of the hole desired. The nose has a narrow chisel point transitioning into the oval/elliptical punch. There is a stripper plate over the work to strip out the punch. I would use Hofi's magic moly graphite dish soap lube.
How wide should be the cutting edge? Smaller than the hole? By how much? Will 30 tons punch 1 1/2 inch steel? Yellow hot, of course.
Best Wishes,

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