Innovative textured alumina coatings have been engineered to boost the performance of cutting tools. Different workpiece materials affect the wear inside the CVD textured alumina coating differently on the crater and flank side of the tools. How the balance in wear changes between the crater and flank side of the tool inside the alumina is not fully understood. Furthermore, any changes in steel elements in the workpiece can affect this balance differently. In this work, the wear of alumina coating has been studied after turning different workpiece materials (low alloy steel with and without Ca, ball bearing steel and stainless steel). The worn surfaces of the inserts were studied and their features related to the different materials. It was found that after machining under similar conditions, each workpiece material leaves a different signature, or worn surface, with unique features in the alumina coating layer. The transition between the sliding to the sticking region was studied in order to help understand the relation to wear when machining different workpiece materials. SEM and topography characteristics were identified on worn surfaces of the coated tools. The resulting worn volume and surface characteristics were related to different wear mechanisms acting on the rake and flank sides of the tool. This work studies the shift in balance between crater and flank wear by identifying different wear mechanisms acting inside the same alumina coating layer when machining different grades of steel. Such work can be a good resource for FEM wear modeling, where good simulation models must take into consideration the physics lying behind the wear types acting on each side of the tool.

中文翻译：

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作用于 CVD 纹理涂层的磨损平衡变化与工件材料的关系

创新的纹理氧化铝涂层旨在提高切削工具的性能。不同的工件材料对 CVD 纹理氧化铝涂层内部的磨损有不同的影响，该涂层位于工具的凹坑和后刀面。尚未完全了解氧化铝内部工具的凹坑和后刀面之间的磨损平衡如何变化。此外，工件中钢元素的任何变化都会对这种平衡产生不同的影响。在这项工作中，研究了车削不同工件材料（含钙和不含钙的低合金钢、滚珠轴承钢和不锈钢）后氧化铝涂层的磨损。研究了刀片的磨损表面及其与不同材料相关的特征。结果发现，在相似条件下加工后，每种工件材料都会留下不同的特征，或磨损表面，在氧化铝涂层中具有独特的功能。研究了滑动到粘附区域之间的过渡，以帮助理解加工不同工件材料时与磨损的关系。在涂层工具的磨损表面上识别出 SEM 和形貌特征。由此产生的磨损量和表面特性与作用在刀具前刀面和后刀面的不同磨损机制有关。这项工作通过识别在加工不同等级的钢时作用在同一氧化铝涂层内的不同磨损机制来研究月牙洼磨损和后刀面磨损之间的平衡变化。此类工作可以成为 FEM 磨损建模的良好资源，其中良好的仿真模型必须考虑作用在工具每一侧的磨损类型背后的物理原理。