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20 February 2014 Non-conventional laser surface hardening for axisymmetric components
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A new process, based on ring spot geometry, is presented for laser surface hardening of large cylindrical com-ponents. The proposed technique leads to a very hard, deep and uniform treated area along the entire work piece surface without introducing a tempered zone, making the process very attractive compared to conventional induction hardening that exhibits both low energy efficiency and poor flexibility. A complete physical model is presented for the process, together with a study of the influence of process parameters on the final outcome. The results of an extensive validation campaign, carried out following the AISI1040 standard, are also reported.
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Erica Liverani, Nadine Battiato, Alessandro Ascari, and Alessandro Fortunato "Non-conventional laser surface hardening for axisymmetric components", Proc. SPIE 8963, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications III, 896309 (20 February 2014);


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