TPT March 2012

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VOL 25 NO 2 M ARCH/APRIL 2012
Tube Düsseldorf 2012
Tube Düsseldorf is the biennial
international tube and pipe trade
fair and the world’s biggest and
best showcase for the tube and
pipe industry and those serving it.
Those heading for Düsseldorf for
Tube 2012 will meet old friends and
make new ones, will strengthen
their command of current industry
practice and explore tomorrow’s
methods today.
Straightening technology
and equipment
Only a perfectly straight tube can
be reliably and faultlessly bent and
for the millions of profiles, angles,
fork tubes, bar channels and a host
of other intricate shapes that are
needed all around the world each day
that makes it an extremely important
process. The suppliers reviewed
here are aware that straightness –
trueness – always comes first.
Handling, bundling,
packaging and logistics
The word “handling”, with its
suggestion of manual labour, may
seem outmoded in a period when
an industrial robot can feed blank
hydroformed steel tubes into one
end of a computerised injection
moulding machine and collect them
at the other, but there are many
different challenges presented
by this process, all of which are
catered for in this feature.
CONTENTS
224
Induction bending takes an
innovative route
By Dipl.-Ing. Andreas Diepgen & Hans-Peter Klos, Siemens AG, Germany
222
Maximising output in high-frequency
tube and pipe welding
By Bjørnar Grande and Olav Wærstad, EFD Induction, Norway
146 202 212