Massive order win for Dörries Scharmann Technologie GmbH
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German machine tool maker Dörries Scharmann Technologie GmbH (DST) has won one of its biggest orders, selling seven ECOSPEED F high-performance machining centres, including a rail guided transport system.
The customer is Korean aircraft constructor KAI Korea Aerospace Industries Ltd, based in Sacheon City. The milling centres will be used to machine the wing ribs (which form the aerofoil shape of the wing) on the Airbus A 350 XWB.
DST will deliver the first ECOSPEED F to Korea in November 2009; the seventh is scheduled for delivery in January 2014. On completion, a rail guided transport system with three loading and unloading stations and 60 storage stations will link the seven machines. With this system, 60 pallets will support high production manufacture as they alternate between set-up and machining.
ECOSPEED is the synonym for an exclusive DST concept. It uses the Sprint Z3 parallel kinematic machining head, the most productive and efficient solution for machining aircraft aluminium structural parts on the market today, it is claimed.
All the machining centres are designed to machine workpiece sizes up to a maximum of 2,000 by 6,000 mm. A C-axis is incorporated for positioning of the angular drilling /milling head. With this, the machine can remove material at any dihedral angle between –130° and + 130°. The drilling/milling head uses the tool interface as the main spindle and can be interchanged automatically. It means that with 5-sided machining, the ECOSPEED F offers more complex options than a conventional milling machine, with an interference contour between tool shaft and machining head of only 50 mm.
The drive power at the spindle is 120 kW (100% DC), the maximum torque is 83 Nm and it reaches speeds of up to 30,000 rpm. With these values, combined with the Sprint Z3 parallel-kinematic machining head, the machining centre also achieves higher feedrates than conventional machines.
Each ECOSPEED F has a rack type tool magazine with 125 positions. A vacuum work-piece clamping system, video monitoring and Sinumerik 840 D control system complete the convenient fittings provided with each machining centre.
* The UK agent for DST is DS Technology (UK) of Birmingham
