Joel Yzerman
Structural
- Aug 1, 2023
- 16
Hi Everyone,
I'm designing and making this post and arm for a manufacturing client.
They need the track overhead to hang the air tools from balancers, but they also need to rotate the arm to gain clearance to drop over the cover of the unit for shipping then rotate the arm back inline and staple it shut. This process is repeated at least 10-15 times a day.
The weight I'snt very much unless a worker pulls down with his own weight on the arm, which I have to account for.
My questions is:
Will the tubing I'm using (4x4x1/8 wall steel square tube) hold up with the torsional forces and tension forces ?
I really wanted to use a 6x6x1/4 wall aluminum tube but I fear overtime it will suffer from microscopic stress due to cyclic use compared to the great endurance steel has with repeated use. Or would 3x3x1/4 wall steel be better than the 4x4 1/8th steel
Anything else you notice might be an issue or if you can recommend thing that would be great.
My drawings are attached.
??
Thanks !
Joel
I'm designing and making this post and arm for a manufacturing client.
They need the track overhead to hang the air tools from balancers, but they also need to rotate the arm to gain clearance to drop over the cover of the unit for shipping then rotate the arm back inline and staple it shut. This process is repeated at least 10-15 times a day.
The weight I'snt very much unless a worker pulls down with his own weight on the arm, which I have to account for.
My questions is:
Will the tubing I'm using (4x4x1/8 wall steel square tube) hold up with the torsional forces and tension forces ?
I really wanted to use a 6x6x1/4 wall aluminum tube but I fear overtime it will suffer from microscopic stress due to cyclic use compared to the great endurance steel has with repeated use. Or would 3x3x1/4 wall steel be better than the 4x4 1/8th steel
Anything else you notice might be an issue or if you can recommend thing that would be great.
My drawings are attached.



Thanks !
Joel