Journal of Mechanical Science and Technology

, Volume 33, Issue 11, pp 5347–5352 | Cite as

Algorithms of mathematical models for fast multi-pass weld-bead drawing technique in V-groove welding

  • Dae-Won ChoEmail author


This study proposes an algorithm by using bead sequences and drawing techniques for multi-pass V-groove welding. Several points were prepared to form the weld bead shape. Then, a spline method called piecewise cubic Hermite interpolation was applied to describe the smooth curve shape of the multi-pass weld beads in Cartesian coordinates. This study simply considers the physical behavior of weld pool, such as surface tension, to describe the bead shapes differently along the layer position bead sequence. These techniques are useful to improve the welding procedure specification and thus reduce the time consumed in drawing the bead shapes to 1 s for thick-plate welding process.


Spline Welding procedure specification Interpolation Bead sequence Piecewise cubic Hermite interpolation 


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The authors gratefully acknowledge the support of the Korean Ministry of Industry (No. 10076403).


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Copyright information

© KSME & Springer 2019

Authors and Affiliations

  1. 1.Busan Machinery Research CenterKorea Institute of Machinery and MaterialsBusanKorea

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