Quote:
Originally Posted by Olle
Press fit (or "interference fit") is what the name implies: You press it in and the part is held in place by friction.
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You can have an interference fit without pressing - Heat the hole and chill the pin. Let air cool. Half a thousandth o/s pin is adequate for this.
Swaging is best done with a rotating concave tool to heat up the pin end by friction while pressing down with your arbor or press. This makes a nice rounded dome that overlaps the sides of the hole.
My vote for the Luger loop is peened in place. A special holding fixture for the frame, stick the loop in the frame and place it in the fixture, lower a ram to touch the ends of the loop (inside the frame) then whack the ram with a BMFH...
Simple enough for slave labor and not time or machine intensive.
I use this method for re-assembling Buck 110 and 112 folding knives after I swap blades in them...
