A new approach to determine the wear coefficient for wear prediction of sheet metal forming tools
A new approach to determine the wear coefficient for wear prediction of sheet metal forming tools
复制标题
确定金属板材成形工具磨损预测磨损系数的新方法
DOI：
10.1007/s11740-007-0065-1
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Gernot Herrmann
中科院分区：
文献类型：
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作者：
H. Hoffmann;Gerald Nürnberg;Kivilcim Ersoy;Gernot Herrmann
考虑到金属成形工具磨损的增加，在工具设计期间已经具有关于工具寿命的详细信息是突出的。使用金属成形与铸造研究所开发的磨损模拟工具REDSY，可以定性和定量地模拟金属板成形过程中的刀具磨损。计算基于Archard磨损模型，该模型使用接触力学来描述磨损行为。在这个项目中，一种新的方法来确定磨损系数已被开发使用一个简单的圆筒杯拉深实验的磨损测量。为了在短时间内实现高磨损量，使用精密自动冲压机中的五阶段级进模工具对几种工具和板材组合进行了分析。结合试验结果和模拟结果，可以确定相应材料组合的磨损系数。通过磨损仿真结果与实际测量结果的对比，验证了该方法的有效性。
Accounting for the increase of wear in metal forming tools, it is eminent to have detailed information about the tool lifetime already during the tool design. With the wear simulation tool REDSY—developed at the Institute of Metal Forming and Casting—tool wear can be simulated qualitatively and quantitatively for sheet metal forming processes. The calculations are based on Archard’s wear model, a model using contact mechanics to describe the wear behavior. In this project, a new approach to determine the wear coefficient has been developed using a simple cylindrical cup deep drawing experiment for the wear measurements. Several tool and sheet material combinations were analyzed using a five-stage progressive die tool in a precision automatic punching press in order to achieve a high wear volume in a short period of time. The wear coefficient for the respective material combination could be determined combining the experimental results with simulation. This method is verified by comparing the wear simulation results with actual measurements.