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Experimental study on the wear behavior of B4C and TiB2 monolayered PVD coating...
Casais, Rafaela B.; Baptista, António Monteiro; Silva, Francisco J. G.; Andrade, Fátima; Sousa, Vitor; Marques, Maria JoséThere are several ways to characterize the wear resistance of coatings in the laboratory, almost all of them applying relatively low loads, both punctually and more widely. Pin-on-disc, reciprocal sliding, and micro-abrasion wear tests are quite common configurations for this purpose. Thus, a gap was identified in terms of characterization of hard PVD coatings subject to higher loads. This work aims to study an...
Improving Preventive Maintenance Management in an Energy Solutions Company
Martins, L.; Silva, Francisco J. G; Pimentel, C.; Casais, Rafaela B.; Campilho, R.D.S.G.In industry, production processes and assets are constantly evolving, Thus, continually improving and updating them is essential to their sustainability. This work intended to apply a set of methods and philosophies to improve the Preventive Maintenance Management process in a case study company dedicated to the development, production and maintenance of power and distribution transformers. Thus, a Action – Res...
Cutting Forces Assessment in CNC Machining Processes: A Critical Review
Sousa, Vitor F. C.; Silva, Francisco José Gomes da; Fecheira, José S.; Lopes, Hernâni M. L; Martinho, Rui Pedro; Casais, Rafaela B.Machining processes remain an unavoidable technique in the production of high-precision parts. Tool behavior is of the utmost importance in machining productivity and costs. Tool performance can be assessed by the roughness left on the machined surfaces, as well as of the forces developed during the process. There are various techniques to determine these cutting forces, such as cutting force prediction or meas...