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View all comments It’s quite simple. One die can shape many blanks but each time a workpiece goes through a die it is drawn down and loses some mass.
Repeated cold working also tends to embrittle the workpiece, so without extensive annealing (foreplay) a penis will become brittle and snap off.
39 points
That’s why I heat treat and anneal my dong every dozen uses. It takes a good 6 hours to get it up to temperature safely, but then letting it heat soak for 20 hours is the real annoying part.
But after my third replacement, I think it’s worth it.
27 points
10 points
