I'm currently modifying a shot peening machine for leaf springs. Currently it processes one un-stressed leaf at a time but the idea is to turn it into a stress shot peening machine that would shot peen at least 2 leaves per pass (that means that the jigs that would hold the leafs would hold at least 2 leaves), as matter of fact it would be ideal if it could hold 3 leaves per jig. However It is obvious that the parameters of the machine would change completely. We were thinking about installing 2 impellers instead of one in order to achieve the required almen intensity for all the leaves. However, I've read that placing several impellers could cause the shot from one to hit the other resulting in the opposite of what is desired, that is, the intensity would actually be reduced.
Also, since the leaves will now be higher than in their original arrangement I've read that that also causes changes in the intensity.
I would like to know if any one here has any recommendations or observations about what I should look after when changing the machine and what considerations should I have regarding the impellers.
