Grinding burn limits: Generation of surface layer modification charts for discontinuous profile grinding with analogy trials
Grinding burn limits: Generation of surface layer modification charts for discontinuous profile grinding with analogy trials
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DOI：
10.1016/j.cirpj.2020.09.014
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发表时间：
2020-11-01
影响因子：
4.8
通讯作者：
Karpuschewski, Bernhard
中科院分区：
文献类型：
--
作者：
Guba, Nikolai;Heinzel, Jonas;Karpuschewski, Bernhard
通过表面层改性图表，可以检测热冲击的发生，从而检测磨削烧伤的风险。与目前的工作，它表明，表面层修改图表不连续的轮廓磨削可以产生使用模拟试验进行的平面磨床上的调查不同的磨削条件和不同的倾斜角的轮廓磨削。模拟试验的实验和分析工作证明是显着更多的时间和成本节省。研究结果还表明，系统参数，如砂轮规格或冷却策略的考虑，由特定的磨削功率。因此，这项工作的实验结果允许的假设，所确定的过程限制是不是或只是在很低的程度上取决于系统参数。这一假设得到了马尔金确定的热过程极限的支持，并在表面层改性图中进行了转换。马尔金的限制，确定不同的地面钢与表面和圆柱形磨削过程，从而不同的系统和工艺参数，对应于在工件磨削与运动学上更复杂的过程中，在这项工作中产生的结果。结果表明，至少有一组钢材似乎具有相似的热加工极限。(C)2020年CIRP。
By means of surface layer modification charts, the occurrence of thermal impact and thus the risk of grinding burn can be detected. With the present work it was shown that surface layer modification charts for discontinuous profile grinding can be generated using analogy trials carried out on a surface grinding machine for investigation of different grinding conditions and varied tilt angles in profile grinding. The experimental and the analysis effort for the analogy trials prove to be significantly more time and cost saving. The results also suggest that system parameters such as the grinding wheel specification or the cooling strategy are taken into account by the specific grinding power. Thus, the experimental results of this work allow the assumption that the determined process limit is not or just to a low extent depending on the system parameters. This assumption is supported by the thermal process limit determined by Malkin and converted in surface layer modification charts. Malkin's limit, identified for different ground steels with surface and cylindrical grinding processes and thus different system and process parameters, corresponds to the results generated in this work at workpieces ground with a kinematically more complex process. The results reveal that there is at least a group of steel materials which seems to share a similar thermal process limit. (C) 2020 CIRP.