In corners you need to deal with centripetal and centrifugal acceleration . . . those are acceleration vectors normal (perpendicular) and tangential (in the same line as) to the direction of your travel. And yes, these are lateral forces. Remember the experiment of spinning with a bucket of...
Regarding your #1:
Deflection of a beam (channel or tube are hollow beams) is more a function of the Moment of Inertia (I) than the modulus of the material.
Example: an I-Beam . . . increase its stiffness by increasing its height rather than the web width.
Reason: I= cube(h) * b * 1/12...
Finally!
Someone addressed the financial side of this string.
I'm sorry, but "quality" is supplying the best product for the best cost. Downtime, late starts, and cleaning up after others add cost . . . and it is unneccessary cost.
Sometimes a company can plod along merrily on its reputation...
Greetings:
Sorry for the late post. I just recently found this website.
I agree with mshimko. Dissimilar metals form a galvanic cell. The less noble metal sacrificially oxidizes (corrodes) to protect the other. See the Galvanic Series to determine whether the metals are anodic or cathodic...
I always thought that you define several "critical dimensions". Critical means that they affect form, fit, and function. With that, GD&T ensures that stacked tolerances of critical dimensions will not cause interference.
I laugh when someone tells me that every dimension is critical, and I...