Análisis de simulación de procesos de soldadura dirigido por el diseñador

14/01/2020

    Esta publicación solo está disponible en inglés

    Publicado originalmente en Praga, ASME PVP, el 15-20 de noviembre de 2018

    Controlling welding distortion by the Joint Rigidity Method (JRM) was originally proposed by Tsai et. al. for panel structures but was computationally intensive and very inflexible for automation. We kept the idea of Tsai’s JRM that starts welding from the highest rigidity in weld joints progressively toward the lowest rigidity, but we proposed a substantially different method to determine the degree of rigidity in them.

    Our modified JRM was considerably faster, and more computationally approachable and automatable. The JRM needs (𝑛 + 1)⁄2 − 1 analyses where “n” is the number of weld passes. This is significantly small sub-space of the total combinatorial possibility of “n” passes when compares to 2 𝑛𝑛! possible scenarios.

    The idea of welding from the highest to the lowest rigidity is accepted and recommended by many industrial standards such as AWS D1.1, and the effectiveness of this approach like in JRM is proven in many applications. Still, JRM cannot guarantee delivery of the best possible sequence or the global lowest distortion.

    Using an automated JRM, as from the authors’ long experience in industrial projects, is one of the most time and cost-effective method for finding an optimal welding sequence when developing a distortion control plan.

    Read the full article here.