Optimised mould tempering Mould design: Simulation provides insight and reliable improvement

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SIGMA Engineering GmbH

At the Moulding Expo, Sigma Engineering presents the simulation-based design of tempering systems using Sigmasoft. In collaboration with /H&B/ Electronic, conventional cooling is compared with conformal cooling. Additionally, optimised cooling channels made from metal 3D printing are presented, which can offer significant advantages.

At the Moulding Expo 2023 in Stuttgart (June 13-16, 2023), Sigma Engineering presents at booth 1E18 insights into mould simulation and the simulative design of tempering systems using Sigmasoft. Simulation is critical to project success in plastics processing, including tooling, where geometries, gating position, and process design can already be optimized. /H&B/ Electronic relies on Sigmasoft for the design and dimensioning of temperature control channels.

Cooling is critical to the quality of thermoplastic components. Temperature differences lead to different cooling rates and create residual stresses and warpage in the finished component. This becomes problematic when there are differences in wall thickness within the component, as the cooling requirements are highly variable locally. Conformal cooling, meanwhile, is an established concept in tooling that is increasingly being used. Simulation allows the cost of conformal cooling to be evaluated in advance against the advantages of the conventional concept (improved component quality, shorter cycle times, etc.).

3D printing has revolutionised the possibilities for component production. It is now possible to produce completely arbitrary channels (regardless of feasibility using milling, drilling, assembly, and sealing). /H&B/ Electronic and Sigmasoft have carefully examined the simulation-based design of a novel temperature control system made using 3D printing. The results will be shown at both exhibitors' stands at the trade fair.

“Analysis and fluidic design of cooling channels are just one of dozens of successful applications of Sigmasoft,” explains Timo Gebauer, CTO of Sigma. “What they all have in common is the ability to understand what is happening before money and time are invested. This was an exciting project where we were able to accompany this successful innovation.”

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