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Hitachi

Hitachi Industry Control Solutions, Ltd.

Features of the new version (Ver. 2022)

Casting Simulation System ADSTEFAN

About the new function

1. Advanced Defect Prediction Tool (ADPT)

The Defect Prediction Tool (ADPT) was developed for the purpose of [I want to utilize the defect information accumulated in the field for casting CAE and production].
It is a tool that outputs the defect occurrence rate using machine learning (* 1).

ADPT performs machine learning using modified ADSTEFAN projects with actual defect information, and generates new prediction model (called Defect DB) for the defects specified in the training data.

ADPT also performs a defect prediction using the Defect DB to output the probability of the registered defects against new prediction targets which includes not only under different casting condition such as casting temperature, but new casting design and products as well.

The prediction model is directly linked to the actual defect information. It allows us to reduce troublesome "fitting" effort, and more actual shop floor-wise defect prediction.

Schematics of the ADPT
Schematics of the ADPT

Example of defect prediction (Cold Shut)
Example of defect prediction (Cold Shut)


2. GPGPU Acceleration Mode

Equipped with a calculation speed-up function by GPGPU (General-Purpose computing on Graphics Processing Units) (* 2).
The GPU mode provides considerable acceleration in the execution of Solidificaiton Analysis compred with CPU by utilizing many cores in GPUs.

3. High-Definition image output

It is equipped with a function to output high-definition analysis result images using the software "POV-Ray (* 3)" for ray tracing.
In addition to beautification by smoothing the free surface, it also has a metallic texture display function. It is possible to output colors such as molten aluminum alloy, molten iron, and copper alloy.

Diecast_temp
Calculation example : Die casting (Filling Temp.)

Diecast_ADC12
Calculation example : Die casting (Silver Metal)

4. Particle Method Analysis

It is equipped with a new calculation module "particle method" (*4) analysis.
It enables to calculate multiple and complexly related physical phenomena occured in the casting process simultaneously.

移動物体機能解析例
Calculation example : Die casting

移動物体機能解析例
Calculation example : Gravity casting

*1 Technology to generate a data processing model by automatic learning from Training Data as a reference.
*2 Technology to apply high parallel processing ability of GPU (Graphics Processing Unit) to general purposes not only for the graphical processing.
*3 "POV-Ray" is software developed by "The POV-Team".
*4 One of the numerical simulation method to solve continuum body behavior based on the Lagrangian method.