RoarkS
Mechanical
- Jul 10, 2009
- 264
Howdy,
Okay so I'm teaching a structures class for A&P mechanics and I'm falling down the rabbit hole on more than a few things. One of them is 2024 "DD" alloy solid rivets.
AC43.13-1B 4-57 d talks all day about heat treating and quenching and dry ice and such but has no specifics. I am looking for FAA acceptable information.
I have a VERY complex old coffee stained Boeing standard for doing this... but want a general industry standard. If I have to buy it so be it. One of the labs is heat treating rivets and I want it done correctly because I don't think we have been doing it correctly in the past. Previously we would heat treat them, then put them in a freezer at 0°F for up to 3 weeks before we would use them... They had already hardened.
Also to my shock looking at the specs for 426DD and 470DD rivets it says "inactive for new design"... what is the new design?
Thanks!
-Roark
Okay so I'm teaching a structures class for A&P mechanics and I'm falling down the rabbit hole on more than a few things. One of them is 2024 "DD" alloy solid rivets.
AC43.13-1B 4-57 d talks all day about heat treating and quenching and dry ice and such but has no specifics. I am looking for FAA acceptable information.
I have a VERY complex old coffee stained Boeing standard for doing this... but want a general industry standard. If I have to buy it so be it. One of the labs is heat treating rivets and I want it done correctly because I don't think we have been doing it correctly in the past. Previously we would heat treat them, then put them in a freezer at 0°F for up to 3 weeks before we would use them... They had already hardened.
Also to my shock looking at the specs for 426DD and 470DD rivets it says "inactive for new design"... what is the new design?
Thanks!
-Roark