Ostra Txomin, Alonso Unai, Veiga Fernando, Ortiz Mikel, Ramiro Pedro, Alberdi Amaia
TECNALIA, Parque Científico y Tecnológico de Gipuzkoa, 20009 Donostia-San Sebastián, Spain.
Department of Mechanical Engineering, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain.
Materials (Basel). 2019 Jul 5;12(13):2159. doi: 10.3390/ma12132159.
Laser metal deposition (LMD) is an additive manufacturing process that allows the manufacturing of near-net-shape products. This could mean significant savings in terms of materials and costs in the manufacturing of high-performance components for the aeronautical industry. In this work, an analysis of how the LMD processing of alloy 718 affects the final machining has been carried out. For this purpose, a comparative study has been done by means of the monitoring of the end milling process of a part manufactured by LMD and a rough-milled part from forged material. Differences between process outputs such as chip morphology and cutting forces were studied. Material characteristics such as microstructure, hardness and mechanical properties were also analyzed.
激光金属沉积（LMD）是一种增材制造工艺，可用于制造近净形产品。这对于航空工业高性能部件的制造而言，意味着在材料和成本方面可大幅节省。在这项工作中，已对718合金的激光金属沉积加工如何影响最终加工进行了分析。为此，通过监测由激光金属沉积制造的零件和锻造材料的粗铣零件的立铣过程进行了对比研究。研究了切屑形态和切削力等工艺输出之间的差异。还分析了诸如微观结构、硬度和机械性能等材料特性。
