Dyl Tomasz, Rydz Dariusz, Szarek Arkadiusz, Stradomski Grzegorz, Fik Joanna, Opydo Michał
Department of Marine Maintenance, Faculty of Marine Engineering, Gdynia Maritime University, Morska Street 81-87, 81-225 Gdynia, Poland.
Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, 19 Armii Krajowej Av., 42-201 Czestochowa, Poland.
Materials (Basel). 2024 Jul 10;17(14):3403. doi: 10.3390/ma17143403.
Metal products for the metallurgical and machinery industries must meet high requirements in terms of their performance, including reliability, accuracy, durability and fatigue strength. It is also important that materials commonly used to manufacture such products must meet specific requirements. Therefore, various techniques and technologies for modifying the surface layer are becoming more and more widely used. These include burnishing, which may be dynamic or static. This article studies the process of slide burnishing of surfaces of cylindrical objects. The burnishing was performed using a slide burnisher with a rigid diamond-tipped clamp on a general-purpose lathe. The tests were performed for corrosion-resistant steel X2CrNiMo17-12-2. The aim of the research was to determine the impact of changes in burnishing conditions and parameters-feed rate, burnisher depth and burnishing force at a constant burnishing speed-on the surface roughness and hardness. Additionally, the microstructure was assessed in the critical areas: the surface and the core. Another phenomenon observed was surface cracking, which would be destructive due to the occurrence of indentation. In the paper, it was stated that the microstructure, or rather the grains, in the area of the surface layer was oriented in the direction of deformation. It was also observed that in the area of the surface layer, no cracks or other flaws were revealed. Therefore, slide burnishing not only reduces the surface roughness but hardens the surface layer of the burnished material.
冶金和机械工业用金属产品在性能方面必须满足高要求，包括可靠性、精度、耐久性和疲劳强度。同样重要的是，用于制造此类产品的常用材料必须满足特定要求。因此，各种表面层改性技术和工艺正越来越广泛地得到应用。这些技术包括可能是动态或静态的研磨。本文研究圆柱形物体表面的滑动研磨过程。研磨是在通用车床上使用带有刚性金刚石尖端夹具的滑动研磨器进行的。试验针对耐腐蚀钢X2CrNiMo17 - 12 - 2进行。研究目的是确定在恒定研磨速度下，研磨条件和参数（进给速度、研磨器深度和研磨力）的变化对表面粗糙度和硬度的影响。此外，还对关键区域（表面和芯部）的微观结构进行了评估。观察到的另一个现象是表面开裂，由于压痕的出现，这可能具有破坏性。论文指出，表面层区域的微观结构，或者更确切地说是晶粒，沿变形方向取向。还观察到在表面层区域未发现裂纹或其他缺陷。因此，滑动研磨不仅降低了表面粗糙度，还使被研磨材料的表面层硬化。
