Baileigh SR-5016M, Operator'S Manual

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Always make sure the gap along the full length of the rolls is consistent. (fig. 3).
If the rolls are not adjusted exactly parallel, the material will spiral during the rolling process.
Because material springback varies with the kind of material being formed, only by test forming
several pieces can the correct adjustments be made.
PLATE ROLLING PROCEDURE
Determining Length of Material
LENGTH OF MATERIAL necessary to form the desired size circle is the first consideration in
circle forming. To determine the approximate length of material needed use the formula: C = I x
D, Where C i
s the circumference, I is the value of π or 3.1416, and D is the diameter. For
example, to find t
he length of material (C or Circumference) to form a 12” (304.8mm) diameter
circle, multiply 3.1416 x 12 (3.1416 x 304.8mm), the result is 37.70” (957.55mm) or the
approximate length of material needed. Cut a few pieces of material to this length for test
forming. Material may have to be lengthened or shortened depending upon results of the test
forming run.
Pre-Bending and Finish Rolling
PRE-BENDING is the operation where the ends of the material are bent to the same radius as
that of the finished piece. This principle is used to get the best results in full circle bending.
Before bending, do the following:
•
Clean any dust or grease from the material.
•
Make sure the edges of the material are free of chips and burrs.
•
Check that the material is flat.
•
Have a template of the finished diameter to compare with.
•
Always work in the center of the rolls.
consistent gap
piece part
figure 3