Comment on Sunday SOTD Thread - January 19th, 2025 (#588)
gcgallant@sub.wetshaving.social 4 weeks agoIt looks to me as if it is cupped. In the first picture, the heel and toe are off the table and in the second the center is off. I’ve received razors with a similar amount of warp. By rolling the razor on the stone, you can generally get to the edge everywhere. You have to be diligent about it, though. If you use your vice, apply pressure very slowly and let the deformation you apply to the razor set in the vice for a few minutes before you remove pressure. I doubt that it would hurt to heat the blade up a bit but this is @djundjila’s domain more than mine.
PorkButtsNTaters666@sub.wetshaving.social 4 weeks ago
As to heating up, what temps are we talking about as to not interfere with the tempering?
gcgallant@sub.wetshaving.social 4 weeks ago
I honestly don’t know if it will make a difference. I would take a butane lighter and slowly heat the entire blade to the point where touching the edge with fingers is uncomfortable. This should be way below the temperature it would take to alter the temper.
djundjila@wetshaving.social 4 weeks ago
But then what would be the benefit?
gcgallant@sub.wetshaving.social 4 weeks ago
Perhaps making the razor hot might allow it to be more easily straightened when the blade is put in a vise.
FWIW, I have tried this with knives that were dropped and bent. I’ve had zero luck. The amount of pressure to get the steel to retake its shape normally breaks the steel.
djundjila@sub.wetshaving.social 4 weeks ago
Tempering is usually done at around 500°C, so you’d definitely want to stay far away from those temps.
PorkButtsNTaters666@sub.wetshaving.social 4 weeks ago
I have consumer-grade kitchen ustensils, and I doubt that even with fat, I will get much above 300 degrees (assuming I don’t set fire)
djundjila@sub.wetshaving.social 4 weeks ago
A regular kitchen gas stove is about 2000°C, and a crème brûlée torch even more, so yes, avoiding fire might be a good idea :)