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IT'S DECISION TIME, FOLKS!
When the die-set is used to blank out a part, the interior
piece is shoved upwards and will fall out into your
hand when the die-set is turned over. The exterior piece
is shoved downwards and becomes trapped by the punch.
The part is a bit difficult to remove and a choice of
methods has to be made at this time. Your decision determines
the next step in making the die-set.
Method #1: Using a Knife
A relatively simple method to remove the part is to
use a thin knife blade to slide between the metal and
the bottom plate and gently pry the metal off of the
punch. This can be time consuming and the likelihood
of tweaking the metal is significant.
Note: This operation is shown out
of sequence, because a choice of how to proceed must
be made now.
Method #2: Using a Stripper Plate
A much better way is to make a stripper to push the
metal off of the punch. To accomplish this, a number
of holes are drilled around the punch that will allow
short pins to push against the metal and push it off
of the punch. These pins are fastened to a plate, called
a stripper plate. Drill a series of holes around the
periphery of the punch as shown here.
If you are going to make a stripper plate, follow the directions
in the next two steps. Otherwise skip ahead to step
#16 (Make the Hinge).
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