3 ms·
Why would the softness matter for torque, if there has been some shift or compression since original install the torque should still ensure the correct pressure
by lucisferre 3y ago
Why would the softness matter for torque, if there has been some shift or compression since original install the torque should still ensure the correct pressure between the fitting, no?
- Scoundreller 3y agoThat’s assuming then original install torque spec was correct. Much easier to strip aluminum threading if you over torque. Steel tends to just bend (and bend back better). Aluminum also fractures while steel bends/stretch back and forth better. (This is mainly from my experience working on bicycles, and a little auto)
- etrautmann 3y agoA major concern is presumably over-torquing a screw and causing partial failure of threads in the material. This could be subtle and difficult to detect, but present as a problem over time.
- kube-system 3y agoSoft materials develop wear more easily. e.g. any slight boogering of the threads of a used fastener could translate into rotational torque that doesn't end up being converted to a clamping force. (or in more extreme instances, some fasteners are torque to yield, and change shape after their first use, and must be replaced. But I'll presume that's not what they were talking about here)
- lupusreal 3y agoAluminum has no fatigue limit, so you really need to do things by the book.