All photos: Andrew Allcock
SUPPLY SIDE NEW FLIGHT PATH PLOTTED
Starrag
Fresh from its launch at EMO was Starrag’s NB 151
5-axis machining centre. Developed specifi cally for
impeller and blisk machining up to 600 mm in diameter,
titanium and Inconel blisk segments were the subject
parts, again programmed using Open Mind software.
The NB 151 features innovative rotary (A and B) axes
that allow the tool/cutting angle to be positioned
relatively closer to the workpiece, resulting in a more
stable machining process and reduced cycle times
Grob & Open Mind
The pair showed the 5-axis machining of a titanium blisk segment,
employing Jabro JS720 solid carbide end-mills and barrel-style semistandard
gatuno) hyperMILL CAM software. Program veri cation and nessing were
achieved using CGTech (https://is.gd/ohezat) Vericut Force software. Finish
machining using barrel tooling can deliver time savings of up to 90%. According
to P&S Intelligence, the global aerospace titanium blisk market was valued at
$3,988.3 million in 2017 and a CAGR of 3.7% during 2018-2023 is forecast.
Based on diameter, the aerospace titanium blisk market is categorised into
less than 70 cm, 70–80 cm and 80–90 cm. The market for less than 70 cm
diameter titanium blisks held the largest market share of over 55% in 2017.
Such blisks nd application in a majority of commercial aircrafts, as well as
business jets. However, the 80–90 cm titanium blisk category is expected to
register the highest CAGR during the forecast period, with military, as well as
next-generation, aircraft driving that
Mazak
Titanium blisk machining and
additive blade tip repair plus
machining were being shown on
a Mazak (https://is.gd/otocah)
Variaxis j-600AM. Seco facemills
employing ceramic inserts were
being employed on this Inconel 718
part. Cutting parameters were 830 m/min,
2 mm DOC and 0.18 mm feed/tooth
Seco tooling for nishing, programmed via Open Mind (https://is.gd/
(32 and 50 mm diameter)
Siemens/Nakamura
An additivelymanufactured
Inconel jet engine
casing produced by
Siemens’ Worcesterbased
Material
Solutions operation
and taking four days
to manufacture was
having its port faces
and securing spigots
machined on a
Nakamura-Tome MX-
100 (ETG, https://is.gd/
ulufay)
Renishaw
Some 80% of the
approximate 200
UK installations
of the Renishaw
(https://is.gd/
erojup)erojup
Equator
comparator gauge
can be found in
the aerospace
sector. This hinge
component had
been machined on a
Chiron DZ12 (ETG),
with the emphasis
on high productivity
machining
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