Wear analysis and prediction for oscillating longitudinal gear forming

与此同时，对成型零件的要求以及成本压力也在稳步增加。这需要提高制造过程的灵活性和产量，同时提高质量或可用性。提高成形工艺的质量和成本效益的一种方法是使用适应性的、特别是振荡的冲压运动。通过使用这些冲压运动，例如工艺限制可能会扩大，成形力可能会降低，工件的尺寸精度可能会受到影响。然而，尚未使用振荡滑枕运动来检查磨损行为。它们会影响摩擦条件以及工具和工件的接触长度，在计算磨损行为时必须考虑这些因素。使用Archards模型计算成形齿轮粘着磨损的初步数值研究表明，与传统的冲压运动相比，使用振荡运动会增加磨损。然而，该模型没有考虑摩擦学条件。在拟议的研究项目中，将研究、计算和预测摆动滑枕运动对磨损行为的影响。因此，使用了Archard 和Rabinowicz 的适应性磨损模型。在这些模型的帮助下，将研究是否可以预测不同摩擦条件和振荡运动的粘着磨损和磨料磨损。

Requirements for formed parts as well as cost pressure are steadily increasing at the same time. This requires an increasing flexibility and output in the manufacturing process with simultaneously better quality or availability. One way to increase quality and cost effectiveness of forming processes is the use of adapted and in particular oscillating ram movements. With the use of these ram movements e.g. process limits can be expanded, forming forces can be reduced and the dimensional accuracy of workpieces can be affected. However, the wear behavior is not yet examined using oscillating ram movements. They affect tribological conditions as well as the contact length of tool and workpiece which have to be considered calculating the wear behavior. Initial numerical studies on calculating adhesive wear of forming gears with Archards model show an increase of wear using an oscillating compared to a conventional ram movement. However, this model does not consider tribological conditions. In the proposed research project the effects of oscillating ram movements on the wear behavior will be studied, calculated and predicted. Therefore, adapted wear models of Archard and Rabinowicz are used. With the help of these models it will be investigated whether adhesive and abrasive wear can be predicted for varying tribological conditions and oscillating movements.