3 ms·
Hitting things ;) https://en.m.wikipedia.org/wiki/Peening https://en.m.wikipedia.org/wiki/Peening I dimly recall making an ashtray (hmmm, not sure that would
by dcminter 2y ago
Hitting things ;)
https://en.m.wikipedia.org/wiki/Peening https://en.m.wikipedia.org/wiki/Peening
I dimly recall making an ashtray (hmmm, not sure that would fly these days) in high school metalwork class by beating out a piece of copper sheet with the peen until it was suitably concave.