Next, at the end of the backward stroke of the first ram, {HEAD ~ the forming punch} together with the pressure pad is lowered to form {TAIL ~ a bulge} on a head portion of the coupling element 
is lowered to form
Next , at the end of the backward stroke of the first ram , { HEAD ~ the forming punch } together with the pressure pad is lowered to form { TAIL ~ a bulge } on a head portion of the coupling element
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH