Integrated flow, thermal and stress simulation software for CFD and CCM (Computational Continuum Mechanics)
SIGMA-Stress
Sigma Engineering GmbH
Every injection molding process causes stresses. This is true for thermoplastics, MIM-CIM, elastomers, and thermosets. Having a good knowledge of the stress distribution, allows the targeted manipulation of the stresses and hence the ability to increase part quality and to minimize scrap.
You must first understand how stresses develop in order to reduce them. They you can determine how and to what extent can they be manipulated?
Stresses are caused by:
* the production process
* the temperature history
* the shrinkage constraint inside the mould (together with relaxation)
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