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Journal of KWJS 2004;22(3):45-49.
Published online September 15, 2004.
The Analysis of the Residual Stress and Bending Characteristies on the Heterogeneous Materials by Laser Welding
Sw-Heon OH, Taeg-Ki MIN
Abstract
Generally, it is used the compensation spring to compensate the inaccuracy of screen image induced by thermal deformation in CRT monitor. Its mechanism is bi-metallic system made of heterogeneous metals and these springs are bonded by laser welding. But laser welding induces a non-uniform temperature distribution, and residual stress is yielded locally by these temperature deviation. Therefore, this study measures the curvature constant to assess functions of the compensation spring of shadow mask with respect to increment temperature and estimates the effect of residual stress on the performance of tri-metal used to compensation spring.


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