Analytical approach for determining the surface shape of a liquid metal under laser cladding conditions
D.V. Bedenko and O.B. Kovalev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia E-mail: dmtr.bedenko@gmail.com
Keywords: laser cladding, analytical model, surface equation, surface tension, contact angle
Pages: 741–750
Abstract
We propose an
improvement of an analytical approach presented previously for determining the
surface shape formed during laser cladding process at the goods manufacturing
in additive technologies. The approach is based on the balance of pressures on
the liquid metal surface, which occurs under the gravity and surface tension. A
method generalization is proposed for the case of a curvilinear shape of a
substrate, which allows determining the surface geometry at arbitrary contact
angles for single beads, vertical walls, and coatings formed by overlapping
beads. The verification of the considered approach was carried out for
laser cladding problems with the use of experimental data obtained by
other authors.
DOI: 10.1134/S0869864318050104
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