“Which gives it strength. If you cut the steel if you were machining it away or grinding it away, you break the grain and create a fracture point in it.”
It takes brute force to redirect and compress those grains, but it heat helps as those grains expand move into new positions. Thomas explains, “the easiest way to forge it is to heat it up to a yellow/orange heat. Then it moves very easily, it becomes pliable. Anything clay will do, hot steel will do.”
Watch part one of this series to see the different ways Thomas and his team heats up steel to nearly 2000 degrees at this forge.
Once white hot, blacksmiths go to work hammering the steel. But it’s a race against time as iron cools down to a “red heat,” requiring nearly two times as much force to work with compared to yellow heat as the molecules in the bar become less malleable. Once the iron “cools” below 1500 degrees, it’s back into the fire to make it workable again.
Helpful hands from pneumatic hammers can speed up this process, while maintaining the hand-made look.
Once flattened by hammers, stretched and shaped by pliers, and indented by other tools, the iron work is cleaned and finished by tempering. This increases toughness and reduces brittleness, a by product of forging with high heat, by reintroducing a lower heat.
The result? A product which is 15% stronger by weight compared to other machined metal. Quite necessary for the parts which take a lot of stress- including the pistons in your car’s engine. Forged from steel, but with a basis in science.
Copyright 2019 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
SUMMERVILLE, S.C. (WCBD) - Lowcountry football legend Coach John McKissick died on November 28 at the age of 93.
Coach McKissick won 621 games over his 62 year career, but despite all of his success, he never considered himself to be a legend.
LINCOLNVILLE, S.C. (WCBD) - Deputies responded to a shots fired call on the 200 block of Pickens Street in Lincolnville, SC at around 3:30 AM.
3 Pcs Ball Valve
Deputies say that a residence and vehicle at the location were damaged by gunfire and the sole occupant of the residence was not injured.
TONTO BASIN, Ariz. (AP) — Rescuers with helicopters, drones, boats and dogs searched Sunday for a 6-year-old girl missing since Friday, when a truck she was in was swept away while attempting to cross an Arizona creek swollen by runoff from a powerful storm.
A boy and a girl, both 5, were found dead on Saturday, a day after nine members of a family gathered for a Thanksgiving celebration tried to cross the fast-moving creek in a military-style truck.
Floating Ball Valve, Flanged Check Valve, Threaded Ball Valve - Yongyuan,https://www.oil-fieldvalve.com/