AKYAPAK AHS - Barrel Error; Barrel

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AKYAPAK-AHS-UserManual-2019.03.11
Sometimes, some errors may occur in the bending process. These are divided into two:
1) Barrel error
2) Reverse barrel error
In fact, machines are produced by avoiding these errors.
Taper of the rolls are calculated, so they can provide a good performance even in the highest
thickness. However, materials with excessive thickness or thinness may cause these errors.
BARREL ERROR
This is the condition where the clearance on the center of the final form is greater. This is
caused by the elasticity of the rolls placed under pressure during bending process.
CAUSE 1 = the fact that plate is excessively thick for the performance of the machine
REMEDY 1 = you cannot solve this problem unless you use a machine with high performance.
CAUSE 2 = jamming of the plate because of the excessive pressure between rolls.
REMEDY 2 = slightly reduce the compression force, this may be performed at the end of the
process. As you can see clearly, the length of the first straight part shall be longer when the
compression force is lower.
BARREL