| Lunar Manufacturing Processes 1 |
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| Hammer operated impact extruder can make parts of prewarmed mild steel, cold Al and cold Mg. Frame parts for miners and vehicles could be extruded. |
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| David A. Dietzler, 2007 |
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| Right) a screw driven extruder |
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| All sorts of things can be made by drop forging from tools to pulley wheels to crankshafts for piston compressors. |
| Extruders can make rails for trains, axel rods, rods for rebar, vehicle frame parts, pipes, cylinders, I-beams, metal bars with square or hexagonal cross sections, and even wires. Also, bars with a cross or Y shaped cross section that could be cut up with diamond saws and rounded by grinding to make motor and generator armatures. |
| SCREW |
| motor on splined shaft |
| These machines would operate in pressurized chambers to prevent the effects of vacuum welding, dust exposure and temperature extremes. |