In this way, the bead damage may be suppressed by the synergistic action of the reducing effect of the bending stress and deformation heat generation by decrease of {HEAD ~ bead deformation}, and alleviating the effect of {TAIL ~ the shearing stress} 
In this way , the bead damage may be suppressed by the synergistic action of the reducing effect of the bending stress and deformation heat generation by decrease of { HEAD ~ bead deformation } , and alleviating the effect of { TAIL ~ the shearing stress }
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 OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL