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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vedel-Smith, Nikolaj Kjelgaard
Aarhus University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2019Comparison of Selective Laser Melting Post-Processes based on Amplitude and Functional Surface Roughness parameters
- 2017Internal Casting Stresses and Dimensional Stability
- 2016Spot feeding spheroidal graphite iron with exothermic and insulating ram-up sleeves in vertically parted moulds
- 2015Spot Feeding Spheroidal Graphite Iron with Exothermic and Insulating Ram-Up Sleeves in Vertically Parted Moulds: Efficiency, Microstructure, Dimensional Accuracy, Deformation, and Driving Force and Feeding Criteria Identification
- 2015Thermal distortion of disc-shaped ductile iron castings in vertically parted mouldscitations
- 2014Feeding Against Gravity with Spot Feeders in High Silicon Ductile Iron
- 2014Effect of Feeder Configuration on the Microstructure of Ductile Cast Ironcitations
- 2013Quantification of Feeding Effects of Spot Feeding Ductile Iron Castings made in Vertically Parted Moulds
- 2012Casting traceability with direct part marking using reconfigurable pin-type tooling based on paraffin–graphite actuatorscitations
Places of action
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document
Quantification of Feeding Effects of Spot Feeding Ductile Iron Castings made in Vertically Parted Moulds
Abstract
In vertically parted molds it is traditionally difficult to feed heavy sections that cannot be reached by traditional side/top feeders or other conventional methods. This project aims at quantifying the effects of using molded-in ram-up spot feeders as a means of feeding isolated sections in castings made in vertically parted molds and it gives directions towards the effectiveness of this technology. <br/>The casting examined is a disc-shaped casting with an inner boss and an outer ring, separated by a thin walled section. Thus, both boss and ring are prone to porosities. <br/>The experimental work analyses the effect of different exothermic and insulating spot feeders and their interaction with traditional parting line feeders, with respect to porosities and surface shrinkage. Experiments were performed using EN-GJS-500-7 and EN-GJS-450-10 alloys. <br/>The experiment shows that the geometry cannot be cast successfully without the use of both a top and a spot feeder. Leaving out one or both feeders, results in porosities and surface shrinkage. For EN-GJS-500-7 any combination with both feeders present produced sound castings. For the more demanding EN-GJS-450-10 the exothermic spot feeder produced sound castings. All other combinations displayed some degree of porosities.