Dealing with cast iron / stress?
#7
You can't really artificially age the material short of paying the heat treaters, but if you're friendly with them, they might do it reasonable. Otherwise, it's called "seasoning" kind of like firewood. Just takes time. If you've already got it roughed out to within 1/16" or so, it may have moved all (nearly) it will. Depends on how "seasoned" it was before you roughed it out.

One method you might consider, if available, is shot peening for stress relief.

You may want to take a few skim cuts after you evaluate just how distorted it is, and wait a while and check it again to see if it i stable. I don't think your home oven will help, btw. Temps need to be upwards of 1200-1300 °f to properly relieve gray cast. That's why you might want to consult a heat treater to see if you can get it in with a batch of someone else's parts.
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Messages In This Thread
Dealing with cast iron / stress? - by Highpower - 01-23-2013, 08:44 AM
RE: Dealing with cast iron / stress? - by PixMan - 01-23-2013, 10:23 PM
RE: Dealing with cast iron / stress? - by PixMan - 01-24-2013, 06:30 PM
RE: Dealing with cast iron / stress? - by Tony Wells - 01-24-2013, 07:43 PM
RE: Dealing with cast iron / stress? - by claudef - 01-26-2013, 09:13 AM
Planers - by Sunset Machine - 01-26-2013, 09:48 AM
RE: Dealing with cast iron / stress? - by PixMan - 01-27-2013, 03:06 PM
RE: Dealing with cast iron / stress? - by EdK - 01-28-2013, 10:30 AM



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