Hi, I'm new to the forum.
I have a question regarding the control of Surface Roughness, Ra and Rz.
I am running some trials to determine the variables which have the most effect on the value of Rz/Ra.
The most obvious variable is Pressure/Velocity of shot. Increasing velocity gives a higher surface roughness measurement. However lowering the velocity reduces the intensity so it is not always an option.
So if I have to maintain a given Intensity (energy) then is the best way to increase the size of the shot and reduce the velocity to give an equivalent intensity (energy) and therefore produce a lower value for Rz/Ra?
I am interested if someone knows about the relationship between shot size and surface roughness for a given Intensity level (all other things being equal).
Any advice would be much appreciated.
Neil
