Wear analysis and prediction for oscillating longitudinal gear forming

振动纵向齿轮成形磨损分析与预测

• 批准号: 274926593
• 负责人: Professor Dr.-Ing. Peter Groche
• 金额: --
• 依托单位: Institut für Produktionstechnik und Umformmaschinen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/274926593?language=en
• 关键词: Wear; analysis; prediction; oscillating; longitudinal

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.

对成型零件的要求以及成本压力同时稳步增加。这就要求在制造过程中增加灵活性和产量，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的且特别是振荡的撞锤运动。通过使用这些压头运动，例如可以扩大工艺极限，降低成形力，并影响工件的尺寸精度。然而，磨损行为尚未使用振荡柱塞运动检查。它们影响摩擦学条件以及计算磨损行为时必须考虑的工具和工件的接触长度。初步的数值研究，计算粘附磨损的形成齿轮与Archards模型表明，磨损的增加，使用振荡相比，传统的冲压运动。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、计算和预测摆动油缸运动对磨损行为的影响。因此，采用了Archard和Rabinowicz的适应性磨损模型。这些模型的帮助下，它将被调查是否可以预测不同的摩擦条件和振荡运动的粘附和磨料磨损。