A Study on the Butt Welding Deformation Considering Dog-Piece Setting

Ryu, Hyun-Su

doi:10.7837/kosomes.2015.21.2.194

Cited by 1 publication

(1 citation statement)

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“…Then he proposed a method of predicting angular distortion in multilayer welding and verified it through welding experiments on V-groove butt joints. Ryu and Kim et al conducted studies on the butt-welding deformation using pieces [24,25]. Ryu only conducted experimental studies on the butt welding deformation at the level of unit specimens.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experiments of Butt Welding Deformations for Panel Block Assembly

2020

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In a shipyard, large numbers of temporary pieces are used to align welding lines of a block joint and prevent welding deformations in the block assembly stage. The use of many temporary pieces requires a great number of working man-hours, causing low productivity. In this study, experiments and numerical analyses of welding deformations were carried out in order to optimize the number of temporary pieces used. The quantitative relationship between the welding deformations and the temporary piece setting was established experimentally. In order to predict welding deformations considering temporary piece setting, a numerical method was proposed. The simulation results were verified through experiments. The optimal number of twenty-one temporary pieces needed to increase the productivity was calculated with the proposed numerical analysis method. Moreover, the proposed numerical analysis method could be used to establish guidelines and plans for a proper use of temporary pieces on the panel block assembly stage.

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Section: Introductionmentioning

confidence: 99%