Bembenek Michał, Krawczyk Janusz, Frocisz Łukasz, Śleboda Tomasz
Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Kraków, Poland.
Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, A. Mickiewicza 30, 30-059 Kraków, Poland.
Materials (Basel). 2021 Mar 16;14(6):1455. doi: 10.3390/ma14061455.
This paper presents the results of the investigations of the properties of saddle-shaped copper alloy chips briquettes produced in a roller press. The physical and mechanical properties of the investigated briquettes were examined on their external surfaces as well as on their cross-sections. The density, chemical composition, microstructure analysis obtained with a 3D and scanning microscope, surface roughness and hardness of the obtained briquettes were investigated. The research proved the differentiation of the physical and mechanical properties of briquettes depending on the investigated area of their surface. The analysis of changes in the porosity of briquettes on their cross-section showed zones of various densification levels. This research expands the knowledge of the processes taking place during the compaction and consolidation of granular materials in roller presses as well as the knowledge concerning designing the geometry of forming tools.
本文介绍了对辊压机生产的鞍形铜合金屑压块性能的研究结果。对所研究压块的物理和机械性能在其外表面以及横截面上进行了检测。研究了所得压块的密度、化学成分、通过三维显微镜和扫描显微镜获得的微观结构分析、表面粗糙度和硬度。研究证明,压块的物理和机械性能因所研究的表面区域而异。对压块横截面孔隙率变化的分析显示出不同致密化程度的区域。这项研究扩展了关于辊压机中粒状材料压实和固结过程的知识,以及有关成型工具几何形状设计的知识。