Walter, I am afraid that "frozen" means just that. A change in air pressure and/or media flow can be done but not without going through the channels to change the frozen process plan. Perhaps This issue has not been addressed because most of the industry simply adjusts as necessary to stay on target. The parts we programmed and "froze" back when the CNC machines were new were done with new shot. This means that our T1 was perfect then but is high now that the shot has been conditioned through use. I am wondering if this is an issue that needs to be addressed industry-wide or in the AMS standard. The gentleman from Sweden got away from cast-steel shot completely because of this so it would seem we are not alone. I would like as much input on this as I can get.
