I imagine if one of the bolt heads came off (the likeliest point of separation) that it would make a god awful racket. I think I'll pose this question to DMCNews and see if I can illicit a broader response. > -----Original Message----- > From: timnagin [mailto:timnagin@xxxxxxxxxxxxxx] > Sent: Tuesday, July 22, 2003 2:10 PM > To: DMCForum@xxxxxxxxxxxxxxx > Subject: RE: [DMCForum] Angle Torque... what the hell? > > >>http://groups.google.com/groups?q=angle+torque <http://groups.google.com/groups?q=angle+torque&hl=en&lr=&ie=UTF-> &hl=en&lr=&ie=UTF- > 8&selm=358 > 91 > >>29A.5053%40engr.uark.edu&rnum=1 > >> > >> Torque-angle method is where you tighten the bolts to a specified > >> torque in a specified order. Once that is done, you mark the position > >> of each bolt head and turn it an additional amount like 1/4 turn, 1/2 > >> turn or some other specified value. This results in "stretching" the > >> bolt a known amount which results in a particular retaining or > >> clamping force being applied. It is generally used in conjunction > >> with throwaway or single-use bolts because they have been stretched > >> when installed. > > > >It sounds like the stretching of the bolt may require that it be > replaced. > >So, it is just a little extra twist. In this case, torque it down and > turn > >it a little more than 1/4 turn (90 degrees) to get the 113 degrees > required. > > It also seemed to be related to dissimilar materials being used in one > application. So, I guess the best thing to do would be to replace the > bolts > each time since they have been stretched, and reduce the possibility of > fracture. I wonder how many have fractured, causing the head to warp and > eventually leak. > > Greg > > > > To unsubscribe from this group, send an email to: > DMCForum-unsubscribe@xxxxxxxxxxxxxxx > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/M=194081.3551198.4824677.1261774/D=egroupweb/S=170512 6215:HM/A=1663535/R=0/SIG=11ps6rfef/*http://www.ediets.com/start.cfm?code= 30504&media=atkins> click here <http://us.adserver.yahoo.com/l?M=194081.3551198.4824677.1261774/D=egroupm ail/S=:HM/A=1663535/rand=800866620> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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