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MECHANICAL ENGINEERING
– LOCATIONS – TECHNOLOGY & PRODUCT DEVELOPMENT – NEWS AND INFORMATION
• Tool movement on two linear axes as
well as one swivel axis (B axis) with a
high-speed milling spindle
The energy saving potential of CNC
milling has not yet been fully exploited:
this is clearly displayed by the latest
further development of CNC turning-
milling centres from HAMUEL Maschi-
nenbau GmbH & Co. KG. In addition to
efficient process cooling with carbon
dioxide, HAMUEL also applies integrat-
ed liquid cooling for its HSTM series. A
chiller and two air/water heat exchang-
ers cool both the machineʼs motors and
the drive modules in the control cabinet
in a single liquid-based refrigeration
cycle. This helps to reduce energy
consumption by 24% compared to the
previous solution.
Just one cooling circuit
An important prerequisite for precision
milling is correct cooling. HAMUEL is
now one of the first companies to utilize
carbon dioxide as a cooling agent for
process cooling, an efficient solution
when machining high-alloyed and heat
resistant steel, titanium or Inconel
®
.
This guarantees a significant improve-
ment in cutting performance, as well as
a reduction in machining cycle times.
HAMUEL therefore offers a healthy
savings potential for the machine oper-
ator.
In addition to process cooling, the
company also focused on the optimiza-
tion of the control cabinet and machine
cooling. Besides sufficient cooling of
the drive modules in the control cabi-
net, the motors in the spindles as well
as the rotary axes must be operated at
a defined temperature to stop the
geometry changing during the machin-
ing cycle.
A work piece which clearly demon-
strates the quality of 5-axis machining
is the turbine blade. And it is well docu-
mented that 5-axis machining reduces
the required time by up to 50% com-
pared to 4-axis machining. Moreover, in
addition to the complex freeform geom-
etry, this work piece is also produced
from a difficult-to-cut material.
A decisive factor for the performance
of the machining centre is basically the
combination of a compact machine and
perfectly harmonized drive and control
technology. The basis for this is a ro-
bust machine design with a one-piece
machine base – a welded construction
filled with concrete. Clever distribution
of the mass offers outstanding dynamic
rigidity. The alignment of the compo-
nents is another key factor which en-
sures the horizontally clamped turbine
blades and blisks can be machined
quickly and efficiently. The tilted axes
also contribute positively to this aspect
while guaranteeing optimum chip dis-
posal.
HAMUEL Maschinenbau
GmbH & Co. KG
Industriestr. 6
96484 Meeder b. Coburg
Germany
Tel.: +49 9566 9224-0
Fax: +49 9566 9224-80
Email: info@hamuel.de
Internet: www.hamuel.de
Mineral casting rotary axes in action
Tech Days at
HAMUEL
HAMUEL in cooperation with
the University of Applied Sci-
ences Zwickau will host the first
technology days for the 5-axis
machining of difficult-to-cut mate-
rials on 26 and 27 September
2012. Well-known experts from
the fields of industry and re-
search will present the latest
technologies and developments.
The first day will focus on the 5-
axis simultaneous milling of tur-
bine blades and similar compo-
nents. The main topic of the sec-
ond day will be the 5-axis ma-
chining of large work pieces with
high contour complexity made of
difficult-to-machine materials. An-
other particularly important as-
pect of this topic is intelligent ma-
chining concepts which can
achieve significant cost, time and
sustainable quality improve-
ments.
The lecture programme will be
supported by various live presen-
tations, for example the integrat-
ed measuring of a turbine blade
during titanium machining or ultra
high-speed machining with car-
bon dioxide cooling. Moreover,
the latest generation of HAMUEL
portal milling machines will be
demonstrated for the first time.
Anyone interested in participating
in the technology days at
HAMUEL can register at the fol-
lowing address:
inciple
e from HAMUEL ensures energy efficiency