Much done in low tech metal work was done by senses. We could see, smell and hear the metal changing. It got red, yellow, then started to sparkle when ready to be worked.
Welcome Boot! Excellent point…I suspect that back in a day before a lot of sophisticated measurements were possible–it took years of experience to “know” when conditions were right–and no doubt they relied on their eyes more than instruments. It also probably explains why there was a lot of tinkering, such as pressing digits into the denticles of the dies–to determine the correct hardness. Did new, inexperienced die workers make some of the mistakes we see on the dies?
- This reply was modified 3 years, 2 months ago by DVCollector.