Over the past years wind power energy is gaining higher importance to reduce CO 2 emissions and thus
counteract global warming. The development of wind power engines is driven by increased performance
which requires largerwind turbines and gearboxes. The qualitydemands ofthose gears are increasing while
the production costmustdecrease. This requires newproduction methods to grind the gears atlowcostand a
high quality level. Profile grinding is known as a pro–cess to achieve the highest possible quality even for
complex flank modifications while threaded wheel grinding is known for high productivity. New machine
concepts make it now possible to use both advantages at the same time. The reduction of non productive
auxiliary time is a very important key aspect to becoming more productive.
The article will show the newest developments to reduce the overall cycle time. This includes aspects to
reduce setup time, idle time, productive time as well as dressing time.

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