holding the disk blade assembly together under {HEAD ~ conditions} of heat and {TAIL ~ pressure} until bonding occurs, and 
of
holding the disk blade assembly together under { HEAD ~ conditions } of heat and { TAIL ~ pressure } until bonding occurs , and
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH