| The
rotary draw forming method of curving provides much tighter
radii than either stretch or roll forming.
In
this method the work piece is clamped to custom made steel
tooling. As the tooling rotates a wiper die & pressure
die press the part into the rotating tooling to produce a
very high quality tight radius curve with almost no cross
sectional distortion.
The
bending cost per piece is very inexpensive however the
tooling for this type of bending tends to be expensive making
it a better method for large quantities of identical curves.
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