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Hitachi

Hitachi Industry Control Solutions, Ltd.

SYSTEM OVERVIEW

Casting Simulation System ADSTEFAN

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ADSTEFAN consists of pre-processor, solver, post processor and utility.

Mesh creation - Condition setting - Analysis execution - Result operation can be operated smoothly, and many customers have patronized us.

In addition, it can be used for various casting processes (die casting (squeeze, semi-solidification), gravity casting (sand mold / mold), low pressure casting, inclined casting,centrifugal casting, precision casting, lost wax casting, electro slag remelting (ESR)) It corresponds.

1. PRE-PROCESSOR

pre_processer

Creates analytical models by generating computational mesh and configuring analysis conditions and result output.

Automatically corrects for surface omissions, overlaps, inversions and other such errors in STL data.

Automatically configures physical property condition needed in the analysis by simply selecting the means of casting and mold materials from the included database.

Automatically verifies configuration settings (e.g.physical property limitations) to avoid work that must be redone due to input errors.

2. SOLVER / FLUID FLOW ANALYSIS

Analyzes how molten metals flow into and fill the mold. Its filling status, pressure, temperature changes, and other parameters can be simulated, enabling optimal plans to be designed.

The accuracy of the flow of the curved surface which is considered to be weak by the direct difference method is also subjected to unique difference correction processing, and improvement of straightness and accuracy is aimed at.

Moreover, various options such as gas-liquid two-phase flow consideration, molten metal behavior in sleeve, consideration of inclination, centrifugation consideration are carried.

3. SOLVER / SOLIDIFICATION ANALYSIS

Analyzes how molten metals solidify in the mold. By visualizing the progression process of solidification, we support wall thickness design and riser design.

By accounting for changes in the volume of molten metal during solidification, macro-shrinkage cavities occurring during solidification, as well as cavity shapes and sizes, can be predicted.

Moreover analysis for cast iron that local pressure and considers super-cooling can also be performed.

4. SOLVER / DIE TEMPERATURE ANALYSIS

If processes such as shot processes, die opening, product removal, and blowing are provided as input, analysis of die temperature changes during repeated casting is performed. Its support safe mold design.

It is possible to investigate the proper number of times to throw away until reaching a steady state and predict the risk of die damage during the process.

Die surface temperature changes due to parting agent spray functions, and internal die temperature changes due to water-cooled tube flow rate settings, can be analyzed. Furthermore, spot cooling can also be evaluated.

5. UTILITY

utility

Various utilities are installed so that ADSTEFAN can be used more meaningfully, such as processing analysis results and cooperation tools with external analysis systems.

By using the property value matching tool and the overlay display function with X-ray imaging data, it is possible to accurately evaluate the deviation between the actual data and the analysis result.

6. POST PROCESSOR

post_processor

Combines CAD data and volume rendering methods to provide high-speed, high-precision display of visual data necessary to evaluate results.

Scaling function, measurement function, result synchronization function, animation output function, report output function etc. are carried.

By using cross section display, semitransparent display, etc., we visualize the part to be evaluated in an easy-to-understand manner.

7. SYSTEM REQUIREMENTS (ADSTEFAN Ver.2020)

OS
  • Windows10 (32bit/64bit)
LANGUAGE
  • Japanese
  • English
  • Chinese
CPU Made by Intel or AMD
MEMORY
  • 2GB or more (32bit)
  • 8GB or more (64bit)
HDD or SSD
  • 1TB available space (Recommended)
  • At least 500MB is necessary for the program, and additional space is required for customer's data (input files, analysis results, etc...).
GPU
  • OpenGL2.0 or later (OpenGL4.0 or higher is recommended.)
  • 256MB or more graphics card