TPT November 2011

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80 November 2011 ›
Bending & Tube Manipulation
Carbide coating to
prevent slippage in
bending operations
AN application of Carbinite coating can
tighten machinery’s grip on material during
bending operations. When applied to the
gripper arm in the holding area of mandrel
or rotary draw systems the textured coating
is said to prevent material from slipping or
rolling during bending.
Carbinite is a carbide coating that is
electofused to a base metal to add texture.
This texture increases the coefficient of
friction between the clamping surface and
the workpiece allowing for a strong, solid
grip in the holding and clamping areas of the
tube bending process.
Carbinite is applied by electro-
fusion, resulting in an incredibly
strong bond since the carbide is
fused into the base metal, not just
applied onto it as in spray welds.
Bulk heating is not required, so
tool temper and heat treat are not
affected. If needed, it can be applied
and reapplied without stripping away
existing layers.
If a metal tube or pipe requires a
sequence of bends, an application
in the gripper area of a seeker or plainer
will help ensure that when the dye rotates
around and the arm comes in contact with
the material, slippage does not occur. This
prevents the material from being knocked
out of plain.
The coating is available in several grades,
leaving various textures ranging from 40 to
320 emery grit. It can be applied to all steels,
including stainless, as well as to certain
aluminium alloys such as 6061 and 7075.
Carbinite Metal Coatings – USA
Fax: +1 724 586 1144
Email:
Website:
Clamp die with Carbinite coating
Bending die with Carbinite coating