f = f(v) ?		What is the relationship between the frequency f of the UV laser beam and the cutting speed v?
		Assuming that:
S = f(v, f) → min		Degraded zone S → minimum
0.003 ≤ v ≤ 1.5 [m/s]		Technological range for cutting speed v
20 ≤ f ≤ 150 [kHz]		Technological range for the UV laser frequency f