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For More Info Call:
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John Tracy x. 3806 |
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There are three types of steel tube
bending: Compression bending
In compression bending, the work piece is clamped to a bend die
(or radius block). A wipe shoe (or slide block) is then brought into
contact with the work piece. As the wipe shoe rotates around the
static bend die, it forces the work piece to assume the radius of the
bend die. This type of bending represents certain advantages for
bending of open extrusions and shapes
Press bending
A ram die with the desired radius of bend is fitted to the press
arm. The arm forces the tubing down against the opposing two wing
dies. The wing dies, with resisting pressure, pivot up, forcing the
tube to bend around the ram. Press bending is very fast and may bend
more miles of tubing than any other method. Since the tubing cannot be
internally supported, considerable distortion can occur.
Rotary draw bending
Rotary draw bending may be the most versatile, precision system of
bending. It certainly produces high quality bends on the tightest
radius within thin wall tubes. With a heavy walled tube on a generous
radius, only a three piece family of tools is required. The work piece
is locked to the bend die by the clamp die. As the bend die rotates
the follower type pressure die advances with the tube. As the wall of
the tube becomes thinner and/or the radius of bend is reduced, a
mandrel and a wiper are required. |
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