Process Developments in Friction Surfacing for Coatings Applications
The present work focused on the production of coatings of AISI1024, AISI1045 and AISIH13 over mild steel and AA6082-T6 over AA2024-T3 by friction surfacing. Performance criteria were established to quantify material deposition rate and specific energy con
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Process Developments in Friction Surfacing for Coatings Applications Rosa M. Miranda, João Gandra and Pedro Vilaça
Abstract The present work focused on the production of coatings of AISI1024, AISI1045 and AISIH13 over mild steel and AA6082-T6 over AA2024-T3 by friction surfacing. Performance criteria were established to quantify material deposition rate and specific energy consumption aiming to compare friction surfacing with most direct concurrent technologies such as laser and arc welding based cladding. Simple analytical models were developed to estimate the rod consumption and the power and energy consumption rates. Friction surfacing is a competitive technology considering energy efficiency and power consumption in comparison with mainstream processes. However, coating processes based on wire or powder feed are more competitive, since they allow continuous feeding of deposited material. The effect of process parameters was also assessed and it was seen they have different impacts on process efficiency and deposition rate for each material combination. Keywords Friction surfacing · Coating · Steel · Aluminium · Performance criteria
R. M. Miranda (B) UNIDEMI, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal e-mail: [email protected] J. Gandra Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal P. Vilaça Department of Engineering Design and Production, School of Engineering, Aalto University, P.O. Box 1420, 00076 Aalto, Finland
J. Xu et al. (eds.), Proceedings of the Eighth International Conference on Management Science and Engineering Management, Advances in Intelligent Systems and Computing 281 DOI: 10.1007/978-3-642-55122-2_105, © Springer-Verlag Berlin Heidelberg 2014
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105.1 Introduction The constant drive for more cost effective and energy efficient manufacturing processes has recently pushed research to develop friction based technologies for several joining applications. Friction based processes have grown very popular as they allow to join without external heat sources, while processing the base materials into an enhanced metallurgical condition. The parts are subjected to relative motion under pressure and heat is brought up by friction at the interface of the faying surfaces. A significant energy is also dissipated from the bulk viscoplastic deformation of the adjacent regions. Friction is increasingly being considered as a cheap energy source to join and process materials, while retaining the advantages inherent to solid-state materials processing. Several recent investigations propose that friction-based processes allow reducing the coating manufacturing costs associated with energy consumption and consumables. These processes are also considered more environmental friendly. This is especially attractive when considering the current increase of eco-friendly regulations, as well as, the popularity and marketing advantages of endorsing such policies. Friction surfacin
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