Influencing Parameters on The Distortion of Disk-Shaped Gear Wheel Base Body Derived From Carburization

M. Steinbacher, B. Clausen, F. Hoffmann, H.-W. Zoch:
INFLUENCING PARAMETERS ON THE DISTORTION OF DISK-SHAPED GEAR WHEEL BASE BODY DERIVED FROM CARBURIZATION
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New challenges in heat treatment and surface engineering – conference in honour of prof. Božidar Liščić (09 – 12 June 2009, Dubrovnik – Cavtat, Croatia)

ABSTRACT:
The distortion of components made of steel and the distortion management are key factors for a more economic production. The distortion is a versatile attendant to each manufacturing step. Therefore it is of common understanding that the final dimensional change of a steel component has to be considered as an accumulative result derived from the entire production chain. The approach of “Distortion Engineering” is applied to disks, which are used as an archetype for gear wheel base bodies. An in-extenso investigation of different manufacturing parameters throughout the process was performed using Design of Experiment (DoE) methods to identify major influences. Particular attention was paid to  the interaction of the main parameters influencing distortion during heat treatment. Therefore disks with different history were case hardened using varying heat treatment parameters. Disk dishing and dimensional changes were examined.


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