1
FE Technical Forum / Re: Update on the FE Power Cylinder Head Testing
« on: September 05, 2020, 06:10:21 PM »
Jay and Bill,
What temper of 7075 did you go with? If you used the T75 temper that explains the failure you're seeing. If you have margin to go to the T73 (overaged) temper that'll really improve the fatigue behavior (although maybe not 100 fixing it).
The shot peening will really help that surface tension as well - putting everything in compression backs you back down the yield curve.
V/R
Joe Burnett
What temper of 7075 did you go with? If you used the T75 temper that explains the failure you're seeing. If you have margin to go to the T73 (overaged) temper that'll really improve the fatigue behavior (although maybe not 100 fixing it).
The shot peening will really help that surface tension as well - putting everything in compression backs you back down the yield curve.
V/R
Joe Burnett