Nov
30
2007
Técnicas de simulación avanzadas
Three-dimensional modelling and simulation of die-casting processes for AlSi alloys
H Y Hwang*, J-K Choi*, E I Marukovich**, A M Branovitsky** and I L Zakharov**.
* Korean Institute of Industrial Technologies (KITECH), Korea, (ITM NAS of Belarus), Belarus.
67th World Foundry Congress
We propose a novel method for simulation die-casting process of AlSi
alloys with preset microstructure. This approach based on two separated
steps, including microstructure modelling required for production alloys with
possibility of quenching heredity solidification, then hydrodynamic
simulation of mold filling with parameters of modelled alloy. Developed
method can be used for the process optimization of die-casting. Advantage
of propo...
Nov
30
2007
Fundición
Effects of inoculation and solidification rate on the thermal conductivity of grey cast iron
Daniel Holmgren, Attila Diószegi and Ingvar L. Svensson.
Jönköping University, Dept. of Mechanical Engineering/Component Technology, S-551 11 Jönköping Swede
67th World Foundry Congress
Laser flash technique has been used to evaluate the thermal conductivity
of pearlitic grey cast iron solidified at three distinct cooling rates. Ten
different heats were performed with various inoculation treatments.
Influences of fraction primary phase and eutectic cell diameter have been
revealed by colour etching. SEM studies have been accomplished in order
to investigate the graphite morphology of the examined materials.
The thermal ...
Nov
30
2007
Composites
Processing of Al-Mg/Al2O3 interpenetrating composites by pressureless infiltration
H Chang*, J G P Binner*, R L Higginson*, R Sambrook**.
*IPTME, Loughborough University, UK, **Hi-Por Ceramics Ltd, Sheffield, UK.
67th World Foundy Congress
Al-Mg/Al2O3 interpenetrating composites have been produced at
atmospheric pressure by infiltrating 2-10 wt.% magnesium content Al-Mg
alloys into 20% dense Al2O3 foams with highly interconnected porosity.
The processing parameters of temperature, ≥900°C, and atmosphere,
flowing N2-Ar, were investigated to determine the processing window and
infiltration kinetics. In-situ observation of the process shows that infiltration
is ...
Nov
30
2007
Aleaciones ligeras
On the effect of cooling conditions and variation of alloying elements on the microstructural and mechanical properties of Al-7%Si cast alloys
Salem Seifeddine and Ingvar L Svensson
Jönköping University, School of Engineering,Component technology, Sweden
67th World Foundry Congress
In order to study the isolated influence of microstructure and alloying
elemets on the mechanical properties of Al-7%Si based alloys, the level of
defects arising from the melt handling and cast process needs to be
minimized. Therefore, gradient solidification technology has been applied,
providing tensile test samples with a low content of defects and a well-fed
homogenous microstructure. In the present work, the influence of cooling
ra...
Nov
30
2007
Gestión y marketing
Latest trends in industrial skills development techniques
Dr. C. Ashley*, Eur Ing C.J.C. Bale*, N. Millan*, T.M. Williams * and R.J. Hendley**.
*AutoTrain LLP, UK, ** School of Computer Science, University of Birmingham, UK.
67th World Foundry Congress
This paper describes the application of Internet-based technologies to
improve skills within manufacturing industries. Employees need continued
training and e-learning offers a more flexible method to complement and
replace conventional training. The methodologies and advantages of elearning
are described, with its freedom from time, travel and accessibility
constraints, as developed by one of the world leaders in e-learning
techniques. ...
