IForgeIron Blueprints
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BP1035 Punching Holes with Moly-Graphite Lube
by Uri Hofi
The lube that i use mostly is moly-graphaite lube
I mix them 50-50 percent add liquid soap mix until get a past and add water. 4 full soup spoons of each will make good 1/2 pint solution. You dip the chisel and the drifts in the solution and you are ready for the slitting drifting process.
The drifts in the moly-graphite solution. I use two chisels and 6-7 drifts that fall into the cooling water under the anvil.
Slitting with the chisel after dipping in the moly-graphite solution.
The slot.
The drifting with the dipped drifts from both sides of the slot with the same drift. The whole operation is done in one heat.
The finished hole.
The installation: Anvil, aluminum plate, chisel, drifts in the solution, the water bowl under the anvil for the drifts to fall into for cooling.
40 each 3/8 inch holes chiseled and drifted in 9/16 inch steel forged to day by my student Shalom Erel with in 70 minutes. Forging the holes is the first operation of forging 20 pairs of tongs.
Mr Clark learned about this lube from me when I was teaching at the school from 97-01. Bob Patrick, which is a very nice man and a good teacher, took a class with me on 1997-98
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