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Development of a variable warm forging process chain (DeVaPro)
Start date: Jan 1, 2009, End date: Dec 31, 2010 PROJECT  FINISHED 

"The geometrical spectrum of current warm forging processes is limited concerning the mass distribution of the final work piece geometry. The more the mass distribution varies along the longitudinal axis, the more press operations are necessary, as the tool material can only withstand limited loads. Additional forming operations have a negative impact on the achievable tolerances. This is caused by the manual work piece transfer which is a prerequisite to produce small and medium sized batches as SMEs do. Against the background of rising market opportunities for high quality warm forged products, in the project DeVaPro – ""Development of a Variable warm forging Process"" a warm forging process is developed, enabling the forges to produce more complex geometries and thus making the warm forging technology more variable. Additionally, the replacement of heat-treatable steels by low alloy steels due to improved work piece properties of warm forged products and the potential for light weight design is investigated. To reach those goals, new technologies, namely a warm rolling operation and an induction reheating process are developed and embedded within an established warm forging process chain. The integration of these operations enables the forges to increase the output, improve the final work piece properties and broaden the spectrum of producible geometries."

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