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Largest Ever Broaching Machine Driven by ABB Drives

Largest Ever Broaching Machine Driven by ABB Drives Largest Ever Broaching Machine Driven by ABB Drives THE largest broaching machine ever manufactured by Marbaix Lapointe, equipped with a.c. servo drives and d.c. main drives from ABB Drives, is nearly completion at Marbaix's works in Watford. Marbaix Lapointe's Champion range of machines are used to cut dovetail and fir-tree slots into turbine and compressor with three lines of tools, giving a total of discs used for aero engines or stationary over 30m of tooling length. turbines for power generation and The largest component size the BHEL pumping. The slots are cut around the machine can handle is 2.3m; the outside of the disc, and allow turbine standard Champion machine handles blades to be fixed to the disc. component sizes up to 1.4m. The latest machine, which Marbaix's Marbaix Lapointe use ABB Drives Technical Director Mr. Dick Castle equipment as standard on its Champion says is the largest ever built in Western range, and also on the smaller version Europe and America, will be delivered Mini-Champion. Says Castle: "The to BHEL Ltd. in Hardwar, India. BHEL Champion range was launched in 1984, will use the machine to broach discs for since then we have sold 22 machines. power generation and industrial turbines. The main drives on the previous range machine will be used to broach discs for The machine, weighing 180 tonnes, is were ABB drives and they are very use in turbo blowers. The blowers are 25m long and 5m high and will be reliable, so it was natural to move to used to pre-charge large diesel engines. shipped to India in September and ABB a.c. servo drives for the new range; The main drive will be a 135kw d.c. commissioning is expected early next they are the latest technology." motor, and the a.c. servo drives will year. have torque ratings 7.5 to 35Nm. Quick programming The Champion comprises a main A feature of the facility to be installed horizontal broach slide, which has a The digital control for the main at Baden will be a unique pallet loading maximum stroke length of 10.3m and is drives and servo drives allow the system, which allows off-line loading driven by an ABB Drives DMG 171kw machine to be programmed very quickly and unloading of components so saving d.c. motor and PAD digital d.c. con­ for specific applications, unlike with the considerable set up time. verter. The turbine disc is fixed t o a table analogue control used previously. The Marbaix Lapointe is one of the which can be positioned for slot cutting system also has self monitoring facilities world's leading supplier of broaching by five a.c. asynchronous servo drives which identify faults quickly. In addition, machines for aero and industrial tur­ from the ABB Axodyn range. The servo with digital control the drives are not bines. Clients include Pratt and Witney, drives have ratings from 7.5Nm to susceptible to drift. General Electric and Allison Gas Tur­ 35Nm. Interestingly, another of Marbaix's bines. The servo drives enable the turbine latest customers is ABB itself. ABB discs to be raised, lowered, rotated or Turbo Systems Ltd. in Baden, Switzer­ ABB Industry Ltd., 9 The Towers, land, has just received delivery of a swivelled as required for the slot cutting. Wilmslow Road, Didsbury, Manches­ standard Champion machine. The The 10.3m broach slide is equipped ter M20 8RB. Tel: 061-445 5555. AIRCRAFT ENGINEERING — October 1991 7 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aircraft Engineering and Aerospace Technology Emerald Publishing

Largest Ever Broaching Machine Driven by ABB Drives

Aircraft Engineering and Aerospace Technology , Volume 63 (10): 1 – Oct 1, 1991

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0002-2667
DOI
10.1108/eb037158
Publisher site
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Abstract

Largest Ever Broaching Machine Driven by ABB Drives THE largest broaching machine ever manufactured by Marbaix Lapointe, equipped with a.c. servo drives and d.c. main drives from ABB Drives, is nearly completion at Marbaix's works in Watford. Marbaix Lapointe's Champion range of machines are used to cut dovetail and fir-tree slots into turbine and compressor with three lines of tools, giving a total of discs used for aero engines or stationary over 30m of tooling length. turbines for power generation and The largest component size the BHEL pumping. The slots are cut around the machine can handle is 2.3m; the outside of the disc, and allow turbine standard Champion machine handles blades to be fixed to the disc. component sizes up to 1.4m. The latest machine, which Marbaix's Marbaix Lapointe use ABB Drives Technical Director Mr. Dick Castle equipment as standard on its Champion says is the largest ever built in Western range, and also on the smaller version Europe and America, will be delivered Mini-Champion. Says Castle: "The to BHEL Ltd. in Hardwar, India. BHEL Champion range was launched in 1984, will use the machine to broach discs for since then we have sold 22 machines. power generation and industrial turbines. The main drives on the previous range machine will be used to broach discs for The machine, weighing 180 tonnes, is were ABB drives and they are very use in turbo blowers. The blowers are 25m long and 5m high and will be reliable, so it was natural to move to used to pre-charge large diesel engines. shipped to India in September and ABB a.c. servo drives for the new range; The main drive will be a 135kw d.c. commissioning is expected early next they are the latest technology." motor, and the a.c. servo drives will year. have torque ratings 7.5 to 35Nm. Quick programming The Champion comprises a main A feature of the facility to be installed horizontal broach slide, which has a The digital control for the main at Baden will be a unique pallet loading maximum stroke length of 10.3m and is drives and servo drives allow the system, which allows off-line loading driven by an ABB Drives DMG 171kw machine to be programmed very quickly and unloading of components so saving d.c. motor and PAD digital d.c. con­ for specific applications, unlike with the considerable set up time. verter. The turbine disc is fixed t o a table analogue control used previously. The Marbaix Lapointe is one of the which can be positioned for slot cutting system also has self monitoring facilities world's leading supplier of broaching by five a.c. asynchronous servo drives which identify faults quickly. In addition, machines for aero and industrial tur­ from the ABB Axodyn range. The servo with digital control the drives are not bines. Clients include Pratt and Witney, drives have ratings from 7.5Nm to susceptible to drift. General Electric and Allison Gas Tur­ 35Nm. Interestingly, another of Marbaix's bines. The servo drives enable the turbine latest customers is ABB itself. ABB discs to be raised, lowered, rotated or Turbo Systems Ltd. in Baden, Switzer­ ABB Industry Ltd., 9 The Towers, land, has just received delivery of a swivelled as required for the slot cutting. Wilmslow Road, Didsbury, Manches­ standard Champion machine. The The 10.3m broach slide is equipped ter M20 8RB. Tel: 061-445 5555. AIRCRAFT ENGINEERING — October 1991 7

Journal

Aircraft Engineering and Aerospace TechnologyEmerald Publishing

Published: Oct 1, 1991

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