The Analysis of Welding Deformation in Arc-spot Welded Structure (II) - Displacement Monitoring and Deformation Analysis -

Jang, KyoungBok; Cho, SangMyoung

Journal of KWJS 2003;21(4):80-86.
Published online August 25, 2003.

[연구논문]아크 점용접 구조물의 정밀 용접 열변형 해석에 관한 연구 (II) - 변위 모니터링 및 변형 모델 정립 -

The Analysis of Welding Deformation in Arc-spot Welded Structure (II) - Displacement Monitoring and Deformation Analysis -

KyoungBok Jang, SangMyoung Cho

Abstract

Arc-spot welding is generally used in joining of precise parts such as case and core in electric compressor. It is important to control joining deformation in electric compressor because clearance control of micrometer order is needed for excellent airtightness and anti-nose. The countermeasures for this deformation in field have mainly been dependent on the rule of try and error by operator's experience because of productivities. For control this deformation problem without influence on productivities, development of exact simulation model should be needed. In this study, on the basis of previous study, the analysis model to predict deformation of precise order in arc-spot welded structure with non-uniform stiffness is brought up through feedback and tuning between monitoring data and analysis results. For this, deformation monitoring system was built and boundary condition considering mechanical melting temperature was applied.