TPT July 2017

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T E CHNOLOG Y
32 JULY 2017
T E CHNOLOG Y
Milling and bevelling of stainless steel
SEVERAL series of Linsinger PFM plate
edge milling machines and RFM pipe
end bevelling machines – designed
exclusively for stainless steel – are
currently operating successfully under
tough conditions.
Underlining this growing trend,
additional newly ordered machines are
now being manufactured in Linsinger’s
factory in Austria ready for delivery.
Combined orders for sets of PFM plate
edge milling machines and RFM pipe
end bevelling machines for stainless
steel tubes are proving especially
popular, according to the company.
Stainless steel requires specially
designed cutting tools to avoid
clogging. The widely varying chemical
compositions and mechanical properties
of stainless steel have radically differing
cutting parameters compared to carbon
steels. The maximum processing speed
is correspondingly lower with stainless
steel.
Linsinger PFM plate edge milling
machines ensure efficient preparation
of welding seams on the two long sides
of stainless steel plates. The machine
has a vertical plate waviness tracking
function for a constant bevel profile. This
allows the whole milling profile to be
milled in a single working pass on both
long sides simultaneously, with high
precision. This is important for perfect
welding profiles, which should ideally be
prepared in one pass. The cutter head
should only be replaced when changing
to a different profile – a function that is
also available fully automated.
Another advantage of Linsinger
machines is their flexibility. All cutting
parameters are digitally adjustable to
the different types of stainless steel.
As the machine measures each plate
separately, even the smallest batch sizes
can be produced efficiently. Linsinger
has also developed specific, multi-layer
coated and particularly resistant carbide
inserts with special cutting geometries
for a wide range of stainless steels.
There is high demand for customis-
able solutions in the pipe industry.
For example, seam preparation for
longitudinal pipe welding and pipe
end chamfering both demand highest
standards of precision, speed and
productivity.
The Linsinger RFM pipe end bevelling
machine enables simultaneous cham-
fering of both pipe ends by a single op-
erator. The chamfered pipe surpasses,
among others, API and ASME
specifications. The moveable bevelling
units chamfer a range of pipe lengths,
and the integral profile copying system
provides consistent chamfer geometries,
even with pipe deformations.
Linsinger Maschinenbau GmbH –
Austria
Fax: +43 7613 8840 951
Email:
Website:
Pipe ends bevelled by Linsinger RFM
Linsinger PFM stainless steel edge miller
Edge profiles milled by Linsinger PFM