curvature tolerance for rolled strip
curvature tolerance for rolled strip
(OP)
Hi
I need a steel strip (St52) (thickness10mm, height 60mm)to use as a guide rail for a curved door. The strip is 2.5m long, and has two radii. First part radius: 3.5m, 2nd part radius: 0.35m).
I am thinking of making this rail by rolling the strip. What tolerances can be met with the rolling process? How accurate is the transition from the one radius to the other?
THanks
jasper
I need a steel strip (St52) (thickness10mm, height 60mm)to use as a guide rail for a curved door. The strip is 2.5m long, and has two radii. First part radius: 3.5m, 2nd part radius: 0.35m).
I am thinking of making this rail by rolling the strip. What tolerances can be met with the rolling process? How accurate is the transition from the one radius to the other?
THanks
jasper





RE: curvature tolerance for rolled strip
RE: curvature tolerance for rolled strip
be critical once you have it close to the
shape you need. I assume when you fasten
it, it will take the necessary shape.
I used to have cage segments bent radially
and felt it was more important to control
the length of the curvature rather than
the bend radii.
RE: curvature tolerance for rolled strip
PRoblem is that i have to have two guide rails with the same curvature. Guidance should be accurate (around +/-2mm) so the two rolled strips should be of the same curvature.
Btw: how about the transition from the large radius to the small radius? is this possible?
RE: curvature tolerance for rolled strip
Your potential suppliers are your best source of info.
RE: curvature tolerance for rolled strip
RE: curvature tolerance for rolled strip
My solution would be to make a support gusset with your intended contour and weld your rail to the support gusset applying heat and clamping loads to make the rail conform to your gusset. The gusset should me accurate if you have it laser cut.