Glass Gob Modeling and Experimental Validation Using a Drop Test

Biosca, Adrià; Borrós, Salvador; Clemente, Vicenç Pedret; García-Granada, A. A.

doi:10.1051/matecconf/201816702009

Cited by 3 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Measurements during the stages of gob forming and loading are used to define the initial temperature of the glass gob, which is assumed to be constant. The temperature measurements of the parison once the blank mold is opened and until the blow mold is closed are used to follow the parison reheating.…”

Section: Resultsmentioning

confidence: 99%

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Biosca

Borrós

Clemente³

et al. 2019

Int J of Appl Glass Sci

Self Cite

View full text Add to dashboard Cite

Glass forming to produce perfume bottles with specific thickness distribution profiles is based on trial and error and requires several tests in production line. These tests are expensive and time‐consuming, which increases time to market. The use of a numerical model aims to reduce the number of prototypes by performing virtual tests of the mold equipment and the process conditions. This article presents results of numerical simulations of the blow and blow forming process to predict glass thickness distribution. Correlation of the simulation results of the glass temperature with experimental infrared measurements on the glass skin and experimental validation of glass forming simulations and influence of the blank mold cavity in the thickness distributions of perfume bottles are provided. Finally validation of the results of axisymmetrical and three‐dimensional models for axisymmetric bottles defining a useful technique to use the right blank mold for desired thickness distribution while reducing the trial and error testing.

show abstract

Section: Resultsmentioning

confidence: 99%

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Biosca

Borrós

Clemente³

et al. 2019

Int J of Appl Glass Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…These viscosity estimates do not provide any indication regarding a prospective change in viscosity after the molten glass in the form of a gob leaves the fore-hearth and enters the glass forming machine. We know that glass viscosity has a very high dependence on temperature, and extreme free surface deformations could cause defects in the final product [16], therefore, it is of utmost importance to have continuous contactless monitoring of the molten gob to ensure the quality of the glass containers.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Correlation between Change in the Geometrical Dimension of a Free-Falling Molten Glass Gob and Its Viscosity

Hussain

O’Nils

Lundgren

et al. 2022

Sensors

View full text Add to dashboard Cite

To produce flawless glass containers, continuous monitoring of the glass gob is required. It is essential to ensure production of molten glass gobs with the right shape, temperature, viscosity and weight. At present, manual monitoring is common practice in the glass container industry, which heavily depends on previous experience, operator knowledge and trial and error. This results in inconsistent measurements and consequently loss of production. In this article, a multi-camera based setup is used as a non-invasive real-time monitoring system. We have shown that under certain conditions, such as keeping the glass composition constant, it is possible to do in-line measurement of viscosity using sensor fusion to correlate the rate of geometrical change in the gob and its temperature. The correlation models presented in this article show that there is a strong correlation, i.e., 0.65, between our measurements and the projected viscosity.

show abstract

Numerical and experimental study to predict the forming process conditions of non-axisymmetric glass perfume bottles

Biosca

Borrós

Clemente³

et al. 2023

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Blow and blow forming process for glass bottle is already validated for 2D axisymmetrical bottles. Current research evaluates the capabilities of the 3D simulations with more complex geometries. This article presents the results of a numerical and experimental study of a non-axisymmetrical glass bottle. In this study, a perfume bottle with a square-based prism geometry and a new set of industrial process conditions have been evaluated. To validate the numerical results, the predicted temperatures in the glass domain have been correlated with experimental infrared measurements of the glass at various stages of the forming process. A comparison of the predicted glass thickness distributions with the section profiles obtained from the manufactured glass bottles is also provided. Finally, transition from the 2 Da to 3D model resulted in new difficulties and capabilities that are also discussed. This study validates simulations with experimental results to help in the design process of molds to avoid undesired thickness distributions and even fracture of glass containers for low thickness 3D corners.

show abstract

Glass Gob Modeling and Experimental Validation Using a Drop Test

Cited by 3 publications

References 6 publications

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

A Study on the Correlation between Change in the Geometrical Dimension of a Free-Falling Molten Glass Gob and Its Viscosity

Numerical and experimental study to predict the forming process conditions of non-axisymmetric glass perfume bottles

Contact Info

Product

Resources

About