| Gallery, Projects and General > How do I?? |
| To Heat Treat or not? |
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| Chazz:
I just completed making my new cross-slide screw for the 9 x 20, it's O1 Drill Rod (anealed state), 7\16" Dia x 20 TPI. The thread is 5\8" longer than the stock screw as well. The new cross-slide nut is made from zink-infused key stock. Given that it fits, it's straight and works great and having only heat treated a couple of things before, I'm concerned about the diameter to length ratio and controlling distortion. A check of Machinerys pointed me to 'nitriding' so I made a couple of phone calls and the best price I could find in my neck of the woods was about $100.00 CDN including return postage. Is this a reasonable price? I know I'd have to give the thread another skim to allow for the treatment. Anyone here have experience with this process? Thanks, Chazz |
| Bernd:
Chazz, Save your money. Personal opinion, I'd say O1 will be hard enough for what your doing. I think if you took a file to your old cross screw you'd find that the file will leave a mark because it isn't hardened. Bernd |
| doubleboost:
I would leave it as it is I have made lead screws with silver steel un hardend and they have been fine |
| Chazz:
Bernd- Save my money? :lol: Is there really such a thing in this hobby? I'm like the government, continual budget reallocation and convincing the voters (think Missus) that a QCTP is far, far more important than getting the dead lawnmower fixed. :thumbup: doubleboost - I concur, I will leave it as it is for now and check for (my concern) galling between the nut and screw. Tnx , Chazz |
| DaveH:
Just for interest I have had quite a few items nitrided. The dimensional change is negligible and I have never noticed any distortion. However I have always used a special steel specifically for nitriding which is normalised and annealed then hardened and tempered before use. Just a comment DaveH |
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