ShootistPRS
New member
Or how about the massive B52 Bomber. It's wings would flex 22' from the at rest position to in flight position and these things have been in service for 50+ years. So again I do not follow your line if you want to discuss "High Stress".
The full story on the B52 is that every part has been replaced many times. The wing spars and skin, the fuselage frame and skin, the landing gear and supports, the interior supports and even the seats. The current engines are much more reliable than the originals and they are routinely replaced.Aircraft are maintained on the basis of how many cycles the part has under gone. Aluminum parts can only be made to withstand just so many cycles before it fails whether it has been overstressed or not. Over stressing an aluminum part can cause immediate and total damage even though it was not stressed to the point of failure. Aluminum is a necessary "evil" in aircraft design and construction. It is the only material that is light enough and cost effective to use.
For presses you can use cast iron and steel engineered to last well beyond the life span in even hard use. There really is no comparison between a cast iron press and an aluminum press.
The aluminum bases on the Dillon presses fail after a period of use.