Dear dr. Peener,
We know that the shot peening introduces compressive residual stresses on the parts subjected to this process.
We know that the values of these residual stresses depend on the parameters of the process.
Can the shot peening process introduce (in surface or depth) also shear stress?(I'm considering carburized and quenched gears)
If the answer is positive, what are the parameters that I need to change, to eliminate or reduce the shear stress?

Thanking in advance

Austenite