Numerical simulation of temperature history during the picture tube panel‐forming process

Purpose – This paper aims to develop an integrated cooling simulation for the temperature history of the panel during the forming process.Design/methodology/approach – A local one‐dimensional transient analysis in the thickness direction is adopted for the panel part, which employs finite‐difference method. And a three‐dimensional, boundary element method is used for the numerical implementation of the heat transfer analysis in the mold region, which is considered as three‐dimensional conduction. The Renormalization‐Group turbulence model is applied for the jet impinging cooling. The part and mold analyses are coupled so as to match the temperature and heat flux on the glass‐mold interface.Findings – The paper provides mathematical model and numerical strategy adapted to the problem, with experimental verification that shows a good agreement.Practical implications – Cooling design in the forming operation of picture tube panel is of great importance because it significantly affects the part quality associ...