2015 Volume 56 Issue 651 Pages 305-310
In this study, we examined the noise and the vibration in blanking with a press machine. Under the blanking speed V=15mm/s, we compared the blanking using a screw drive servo press with that using a general-purpose crank press. The blanking noise of the screw drive servo press was 10dB greater than that of the general-purpose crank press. Also, the vibration amplitude in blanking with the screw drive servo press was 0.3mm greater than that in blanking with the general-purpose crank press. This is the increase phenomenon of vibration in blanking. As a result of this study, we found that there are three factors that constitute the blanking vibration when using the screw drive servo press. The increase in vibration in blanking occurs by two factors; one is the planned descent of the press slide and the other is descent by motor thrust for position deviation dissolution.