Accordingly, if the ram is to be descended by the self weight, the ram is descended at a speed equal to or lower than a ram self weight maximum falling speed at which the workpiece is not bent even if {HEAD ~ the punch} contacts with {TAIL ~ the workpiece} 
contacts with
Accordingly , if the ram is to be descended by the self weight , the ram is descended at a speed equal to or lower than a ram self weight maximum falling speed at which the workpiece is not bent even if { HEAD ~ the punch } contacts with { TAIL ~ the workpiece }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL