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Passage DEM - Discrete Element Method

Presented September 15th, 2003 in Indianapolis, Indiana

at 22nd International Die Casting Congress & Exposition (NADCA)

 

 

A CASE STUDY FOR SIMULATION-BASED IMPROVEMENTS IN DIMENSIONAL ACCURACY OF DIE-CAST PARTS

 

 

Authors

K. B. Mehta &  H. U. Akay -  Technalysis Inc.

 W. G. Walkington - Walkington Engineering, Inc.

R. Holland - Brillcast Inc.


 

Abstract

Applications of a die-casting simulation program, dieCASÒ , for design of a die-cast part is presented in this paper. dieCASÒ software, originally developed at General Motors (GM) Research and Development Center with die casting in mind, has proven to be a very effective tool in evaluating the effects of different process parameters in die-castings. Since its inception at GM in 1993, the program has been used extensively in GM Powertrain and is now exclusively licensed and maintained by Technalysis, Inc. Because it is designed to address the many unique features of the die-casting processes, the obtained results are very useful for die casters in making design decisions before the parts are made. The results presented here demonstrate the power of the computer program dieCASÒ in making process improvement decisions. With a case study conducted here, it is shown that the ability to perform analyses fast allows several iterations leading to superior results by fine-tuning of the process conditions, cooling line locations and part and runner geometry in advance.

Passage®/ DEM+FLOW Software

Example: Fluidized Bed Granulation of Tablets
Flow Model - Air Velocity
DEM Model Particles
 
Example: Mixing of Powders
DEM Model
FLOW Model
 
Example: Printing of Toners- Development Process (sample pictures)
Toner Voltage
Print pattern
Passge DEM Toner Voltage

Passage Discerete Element Modeling (DEM) Print Pattern

 
 

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