Quenching red hot steel - GIFs

Quenching red hot steel.


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Previously:

https://www.homemadetools.net/forum/...089#post141193
https://www.homemadetools.net/forum/...2504#post96473
https://www.homemadetools.net/forum/...492#post122734
https://www.homemadetools.net/forum/...3582#post99502
https://www.homemadetools.net/forum/...158#post100892
https://www.homemadetools.net/forum/...213#post121319

That's not work for the faint of heart. A few silly moves and people are gonna get hurt badly. Shows the skills involved in getting it done right.

Depends on the part use and materials, but only fifth GIF is quenched according to general practice. Water, brine or oil, if you can't keep the part moving and 'wet', air bubbles cause erratic cooling. The fifth GIF demonstrates an agitated bath, which can alleviate that.

I do wonder about the quenching of those first couple examples, where they are stacked so close together. There is not much room for the coolant to get between the parts. It would be interesting to know how close the hardness levels among the inner parts vs the outer parts.

In the last couple, there is obviously a significant flow of coolant in the tank, to insure more even cooling, before the parts are even dropped into it.

I also find myself wondering how many heat/cool cycles those chains can endure before failure.

But indeed, some interesting footage.

Those "Forged in Fire" TV hosts would certainly have something to say about these quenches.