Żaba Krzysztof, Balcerzak Maciej, Kuczek Łukasz, Wiewióra Marcel, Różycka Ilona, Trzepieciński Tomasz, Mizera Jarosław
Department of Metal Working and Physical Metallurgy of Non-Ferrous Metals, Faculty of Non-Ferrous Metals, AGH University of Krakow, Al. Adama Mickiewicza 30, 30-059 Cracow, Poland.
ERKO sp. z o.o. sp.k., Czeluśnica 80, 38-204 Jasło, Poland.
Materials (Basel). 2024 Dec 18;17(24):6185. doi: 10.3390/ma17246185.
This paper presents the results of a pilot application of Powder-Bed Fusion of Metals Using a Laser (PBF-LB/M) for the fabrication of M300 (1.2709) maraging steel sheet metal bending tools. S235 steel was used as a substrate for the fabrication of bending punches. The main goal of the research was to determine the usability of such tools without heat treatment, which would contribute to the increase in the cost of tool production. Industrial tests of tools were conducted during the forming of Inconel 625 and AW-6061 T0 aluminium alloy sheets. The punches were subjected to tests of surface roughness, hardness, microstructure, porosity, and geometric quality in order to verify the quality and accuracy of tools made by the PBF-LB/M technique before and after experimental investigations in industrial conditions in a selected manufacturing company. It was found that tools with an M300 steel working layer after the PBF-LB/M process without heat treatment show suitability for bending sheet metal in a certain range of force parameters, ensuring obtaining elements after bending from Inconel 625 and AW-6061 T0 aluminium alloy sheets of the required geometric quality.
本文介绍了使用激光进行金属粉末床熔融(PBF-LB/M)技术试制M300(1.2709)马氏体时效钢板材弯曲工具的结果。使用S235钢作为制造弯曲冲头的基材。该研究的主要目标是确定此类未经热处理的工具的可用性,这将有助于增加工具生产成本。在Inconel 625和AW-6061 T0铝合金板材的成型过程中对工具进行了工业测试。为了在选定制造公司的工业条件下进行实验研究之前和之后验证通过PBF-LB/M技术制造的工具的质量和精度,对冲头进行了表面粗糙度、硬度、微观结构、孔隙率和几何质量测试。结果发现,经过PBF-LB/M工艺且未经热处理的带有M300钢工作层的工具在一定力参数范围内显示出适用于弯曲板材的特性,确保从Inconel 625和AW-6061 T0铝合金板材弯曲后获得所需几何质量的元件。