Numerical Simulation of Die Cooling by Die Casting Lubricant Spray Method

Abstract

In order to achieve high cycle time in die casting process, high measurements accuracy of die cooling by lubricant spray is important . Therefore, a die lubricant spray experiment has been implemented with a heated die block. Temperature distribution near the die block surface has been measured by thermocouples, and distribution of lubricant/block head transfer coefficient in spray spot has been calculated based on the experiment . With the experiment, spray cooling models for casting CAE have been proposed. The models consist of one spray model and two spray models in which spray guns lubricant applied at the same time. Using the proposed models, lubricant spray simulation was carried out . The content of the experiment was that the simulated temperature curves were compared with actually measured temperature curves. As a result, the simulated curves agreed well with actually measured temperature curves.