Technical papers

Using CFD flow fields to inform acoustic finite element models of complex mufflers with thermal and flow effects

Many actual muffler systems with complex geometry have large temperature variations and large variations in the flow field under normal operating conditions. Often perforated regions and other complex design elements…

Microporosity Prediction and Validation for Ni-based Superalloy Castings

Microporosity in high performance aerospace castings can reduce mechanical properties and consequently degrade both component life and durability. Therefore, casting engineers must be able to both predict and reduce…

Part Ejection in Magnesium High Pressure Die Casting

One important process step in Magnesium HPDC (High Pressure Die Casting) is the ejection of part from the mold. Due to solidification and cooling down the part shrinks onto the mold. To overcome the strong forces that…

A robust spot weld model for structural vibration analysis

A finite element spot weld is proposed. The model is only weakly sensitive to element size, in contrast to some existing models, for which predictions of the static and dynamic responses can be strongly sensitive to the…

Fully trimmed vehicle models with poroelastic finite element method, modelling technics

The automotive industry is currently expressing a strong need to understand more into details the influence of the trim parts on the acoustic response in the vehicle in the case of structureborne or airborne excitations…

Thermal calibration and porosity prediction

Investment casting is the only commercially used technique for fabrication of nozzle guide vanes (NGVs), which are one of the most important structural parts of gas turbines. Manufacturing of NGVs has always been a…

Grain Structure Prediction

The control of grain structure, which develops during solidification processes in investment casting of nozzle guide vanes (NGVs), is a key issue for optimization of their mechanical properties. The main objective of…

Conversion of a Vacuum-Assist Casting to a Conventionally Vented Casting with Casting Simulation

In the current competitive environment, the capability to produce high quality die casting components whilst reducing production cost and development times is a challenge the foundry industry must face up to. Whether it…

Process Chaining Approach With Simulation: From Cast Ingot To Final Properties Of Forged Component

The aim of this study is to evaluate, through FEM software simulation, the quality and properties that can be achieved on a forged component, taking into account results of casting process used to produce ingot . In…

Integration of Coupled Casting and Structure Simulation for Magnesium Die Castings

Simulation is an important tool in the different phases during development. It is used in the early, purely virtual development phase as well as in later production and final test phases, respectively, to analyse and…