All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Hybrid realization of fillet weld

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F18%3A43953632" target="_blank" >RIV/49777513:23220/18:43953632 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.emeraldinsight.com/doi/full/10.1108/COMPEL-08-2017-0357#" target="_blank" >https://www.emeraldinsight.com/doi/full/10.1108/COMPEL-08-2017-0357#</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1108/COMPEL-08-2017-0357" target="_blank" >10.1108/COMPEL-08-2017-0357</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Hybrid realization of fillet weld

  • Original language description

    Purpose: A model of hybrid fillet welding is built and solved. No additional material (welding rod, etc.) is used. Heating of the welded parts is realized by laser beam with induction preheating and/or postheating. The purpose of these operations is to reduce the temperature gradient in welded parts in the course of both heating and cooling, which reduces the resultant hardness of the weld and its neighborhood and also reduces undesirable internal mechanical strains and stresses in material. Design/methodology/approach: The complete mathematical model of the combined welding process is presented, taking into account all relevant nonlinearities. The model is then solved numerically by the finite element method. The methodology is illustrated with an example, the results of which are compared with experiment. Findings: The proposed model provided satisfactory results even when some subtle phenomena were not taken into account (flow of melt in the pool after irradiation of the laser beam driven by the buoyancy and gravitational forces and evaporation of molten metal and influence of plasma cloud above the irradiated spot). Research limitations/implications: Accuracy of the results depends on the accuracy of physical parameters of materials entering the model and their temperature dependencies. These quantities are functions of chemical composition of the materials used, and may more or less differ from the values delivered by manufacturers. Also, the above subtle physical phenomena exhibit stochastic character and their modeling may be accompanied by non-negligible uncertainties. Practical implications: The presented model and methodology of its solution may represent a basis for design of welding processes in various branches of industry. Originality/value: The model of a complex multiphysics problem (induction-assisted laser welding) provides reasonable results confirmed by experiments.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

    <a href="/en/project/LO1607" target="_blank" >LO1607: RICE - New technologies and concepts for smart industrial system</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    COMPEL : the International Journal for Computation and Mathematics in Electrical and Electronic Engineering

  • ISSN

    0332-1649

  • e-ISSN

  • Volume of the periodical

    37

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    13

  • Pages from-to

    1315-1327

  • UT code for WoS article

    000447495900002

  • EID of the result in the Scopus database

    2-s2.0-85053235819