Which parameter often affects roughness strongly?
Feed rate often has a strong effect because it changes the cutting load. Some marble studies identify feed as the most influential variable within their test range.
Can roughness values from papers be copied directly?
No. Reported roughness values depend on material, machine, wire, coolant, measurement method, and test conditions.
How should surface roughness be improved?
Reduce unstable load, improve coolant and debris removal, choose suitable wire grit, control tension, and test feed and speed combinations systematically.
Application reference
For commercial equipment or test-cut planning, see Ensoll's test cutting service.