TPT November 2016

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50 NOVEMBER 2016
T E CHNOLOG Y
 EXCELLENT QUALITY
 INNOVATION
 EXPERI ENCE FOR MORE THAN 100 YEARS
 GLOBAL NETWORK
 FOR THE BEST RESULTS IN CUTTING
 ANY SIZE OF BLADE FOR ALL MACHINES
MADE IN JAPAN
since 1910
TCT-CIRCULAR SAW BLADES FOR CUTTING BAR/TUBE/PIPE
TENRYU SAW MFG. CO., LTD. | Japan, Fukuroi,
TENRYU EUROPE GMBH | Germany, Aalen,
TENRYU AMERICA INC. | USA, Hebron KY,
TENRYU SAW DE MEXICO, S.A. DE C.V. | México, Silao, Guanajuato,
TENRYU (CHINA) SAW MFG. CO., LTD. | P.R. of China, Langfang, Hebei,
TENRYU SAW (THAILAND) CO., LTD. | Thail., Amiphur P., Rayong,
TENRYU SAW INDIA PVT. LTD. | India, Neemrama, Rajasthan,
. . . ASK TENRYU !
CNC end bevelling for complex geometries
FOR decades, mechanical copying
devices have been the standard for pipe
end bevelling. However, this production
method alone no longer meets the
increasing quality requirements of the
pipe industry. International standards
such as the American Society of
Mechanical Engineers (ASME) already
call for more complex pipe end
geometries than can be realised using
mechanical copying devices.
Graebener’s solution is a CNC-
capable pipe end bevelling machine
that can be operated with a mechanical
copying device or with a CNC tool axis,
depending on the respective requirement
in one-side or two-side design.
With the CNC-capable pipe end
bevelling machine, Graebener has
developed a ‘one for all’ technology
for the optimum processing of carbon
steels as well as stainless steels:
mechanical copying and CNC copying
in one machine, for all weld seam
geometries. Traditional methods alone
can fail due to the complexity of some
geometries and with thick-walled pipes.
With accurate CNC control of the
tool support, the Graebener machine
allows the realisation of complex weld
seam technologies, even for pipes with
increased wall thickness. Relatively
simple geometries can still be copied
mechanically.
The CNC pipe end bevelling machine
automatically takes into account the
ovality at the pipe ends, ensuring
an optimum chamfer geometry. This
is made possible by an electronic
measuring system that records the
pipe ovality to the centre over the
entire pipe circumference. Deviations
from the theoretical pipe centre can be
displayed graphically.
Graebener Maschinentechnik GmbH
& Co KG – Germany
Website:
Graebener’s CNC pipe end bevelling machines