Abstract
The machine introduced here is unique among computer numerical control form rolling machines in functions and accuracy. No other machine matches its capabilities. The main die spindle can be tilted by 1/1000 degree gradations even while processing work. Synchronization between the two main dies' spindle rotation angle varies less than 0.1 degrees even under 100KN force. Distance between die spindles can be controlled within micrometers, even under pressure of 100 KN. With these features quality JIS C3 levels of ball screw male thread can be consistently rolled, all the time, every time.
