- 08 Jul 2019, 21:05 #1294055

For a wood working project, I want to make specially shaped chisels from O1 steel. To fix these small chisels I want to make threaded holes in it (diameter 5 mm). Can this be successful or will the thread seriously be affected by the hardening process (corrosion or what so ever).

kind regards
Klaas

- 08 Jul 2019, 21:15 #1294058

I'd have an experiment with a test piece - I would be worried about distortion in the heat treatment process.

- 09 Jul 2019, 07:39 #1294090

No problem at all, I made a spokeshave blade the same way.

Rosewood Spokeshave by Pete Maddex, on Flickr

And their is no way you are going to be able to tap the threads afterwards.

Pete

Pete, Mad Bad and Dangerous to Know
It doesn't have to scream to cut wood
Let them eat static!
Flickr

- 09 Jul 2019, 07:58 #1294094

an M5x1.25 threaded hole is unlikely to distort during heat treating (maybe if it was a something crazy like an m12x1 or something large and very fine). crack on with it.

- 10 Jul 2019, 07:03 #1294292

Some anti-scale compound on the thread before hardening would help to keep it clean

- 11 Jul 2019, 13:21 #1294555

Thanks a lot. I will give it a try.

kind regards
Klaas