08-24-2013, 10:08 PM
Mike
I've poured iron before that had a hard skin so this is nothing new other then the fact that its just in two spots in the part which is the two edges where you see the bright shiny metal, harder then toolpushers heart. the rest machined fine, the center bore which gets threaded did so with no problems.
![[Image: white-iron0002.jpg]](http://i1222.photobucket.com/albums/dd484/Superdave257/white-iron0002.jpg)
the porosity is something (I won't say new i have a backing plate that is full of slag inclusions that I poured) else. it may be from steam not sure on that one, the shrinkage I know how to deal with that. Anyway I almost got a useable part out of the deal, almost.
DA
I've poured iron before that had a hard skin so this is nothing new other then the fact that its just in two spots in the part which is the two edges where you see the bright shiny metal, harder then toolpushers heart. the rest machined fine, the center bore which gets threaded did so with no problems.
![[Image: white-iron0002.jpg]](http://s1222.photobucket.com/user/Superdave257/media/white-iron0002.jpg.html)
the porosity is something (I won't say new i have a backing plate that is full of slag inclusions that I poured) else. it may be from steam not sure on that one, the shrinkage I know how to deal with that. Anyway I almost got a useable part out of the deal, almost.
DA
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
If life seems normal, your not going fast enough!
If life seems normal, your not going fast enough!