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Lightweight yet stable
By simulating the glass-moulding process digitally, Gerresheimer is reducing the development time for glass containers
“Our customers are demanding sustainable and therefore lightweight yet stable products,” says Philipp Amrhein, Manager of New Product Development & Mould Design at Gerresheimer in Lohr. To ensure it is in the position to meet these requirements, the company is using simulation software developed to calculate sturdiness and simulate the production process for moulded glass. The moulding production process and design of the moulds are being optimized, taking account of all the chemical and physical parameters of the glass. CFD simulations are also being used to optimize the respective process, which reduces stresses in the glass container and is an effective way to improve the quality of the production process.
While getting a stable production process used to require lengthy empirical testing, this can now be achieved in just a few minutes using computer-based simulation software, more or less at the touch of a button. The results are then immediately transferred directly to the three-dimensional CAD software for mould design via interfaces and used directly by the mould-processing machines to create mould tools. The simulation software also reduces development time by up to 70 percent.
The well-known finite element analysis (FEA) method is used to determine
which stresses arising from the production requirements work on the glass containers. These results can be used to prevent weaknesses even before the items have been sketched out. The computer-based simulation of the moulding process and the product requirements from day-to-day mould design are now part and parcel of operations. As an element of Gerresheimer’s continuous improvement process, it is essential.
More product information: Gerresheimer Primary Packaging Glass
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