A Study on System for Real-time Measurement of Welding Distortion

Jeong, Jae-won; Kim, Ill-Soo; Kim, In-Ju; Son, Sung-Woo; Shim, Ji-Yeon

Journal of KWJS 2009;27(5):62-67.
Published online November 16, 2009.

실시간 용접변형 계측을 위한 시스템에 관한 연구

, , , ,

A Study on System for Real-time Measurement of Welding Distortion

Jae-won Jeong, Ill-Soo Kim, In-Ju Kim, Sung-Woo Son, Ji-Yeon Shim

Abstract

Welding deformation during the assembly process is affected by not only local shrinkage due to rapid heating and cooling, but also root gap and misalignment between parts to be welded. Therefore, the prediction and control of welding deformation have become of critical importance. In this study, it was focused on the development of the 3-axis apparatus for real-time measurement of the welded deformation. To achieve the objective, a D-H algorithm has been carried out to check the behavioral and performance evaluation for the developed robot. The sequence experiments were taken the base materials of 400×200×4.5㎜ plate for butt welding. The real-time experimental measurements are in good agreement with the measured results.

Key Words: GMA(Gas Metal Arc) Welding, Welding distortion, CATIA Simulation, D-H Algorithm