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Windtech International November December 2024 issue

 

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For GEARFORM the project partners specially manufactured a hot rolling facility Fraunhofer IWU 300 150Fraunhofer IWU, along with industry partners, has developed a hot rolling process in the GEARFORM project to create large-module gears for wind turbines. Traditional hobbing methods are replaced with a hot rolling process, which enhances material utilisation and reduces production time.
 
The largest gear produced in this project has a diameter of 500 millimeters and a module of 9.5 millimeters, achieved through a specially designed hot rolling facility. This process increases gear durability by enhancing root strength and load-bearing capacity, while also improving material strength and toughness through forming-induced effects like dislocation density and grain refinement. The project was supported by the Federal Ministry for Economic Affairs and Climate Action, and involved collaboration with industry partners EMA-TEC, Härterei Reese Chemnitz, Dreiling Maschinenbau and Flender.
 
Image © Fraunhofer IWU
 
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