TPT March 2016

92 / 192

90 MARCH 2016
T E CHNOLOG Y
The right tool for the best moulding
IN the development of moulding tech-
nologies versatility is a common chal-
lenge depending on the sector and the
use of the tubes, according to transfluid
Maschinenbau GmbH. “So, for instance,
our upsetting technology could be in
demand, with the upsetting capacity of
98kN, 147kN or 196kN,” says Stefanie
Flaeper, managing director at transfluid.
“Or our roller technology, that facilitates
tooling-independent moulding with only
one tool. Even combination machines
that display the axial and roller moulding
in a tube clamp are potentially necessary.”
In order to secure powerful results it
is important that the tools used during
the procedure guarantee the design
of every individual tube product. The
rigorously customised tool development
undertaken includes feasibility studies
and, if necessary, a sample production
and prototype. An entirely new
department has been created to cater
to the latter, where specialists inspect
components and tools of up to 45mm
diameter.
Tool design is an especially relevant
topic even for axial tube moulding. For
instance, as far as the cycle time allows,
transfluid often inserts an intermediate
clamping unit in hose connections. It
provides internal support for the entire
geometry. The technology prevents the
tubes from bending inwards at sensitive
locations.
In the case of multiple upsets that
cannot be produced in the above-
mentioned manner, transfluid uses a
single-tier sliding split mould.
These tools are equipped with an
internally controlled pneumatic guard
lock. This prevents scratches from
forming on the geometry if clamping
claws are opened after the moulding.
The position of the sliding element is
always recognised.
A technical feature concerns the
upsetting tools that open up when the
moulding tier moves back and forth. In
the case of longer strokes they prevent
contact between material and tool.
Thus it prevents cold welding between
tool and material and the surface of the
material remains undamaged. Multiple
beading along with an intermediate
clamping fixture can also be produced
using this technology.
transfluid Maschinenbau GmbH –
Germany
Fax: +49 2972 9715 11
Email:
Website:
Versatility is key in tube moulding technology