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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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Hinduja, Srichand
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Topics
Publications (14/14 displayed)
- 2021A Review on Microcellular Injection Mouldingcitations
- 2010Image processing methods for online measurement in radial-axial ring rolling
- 2009Investigating the feasibility of DLC-coated twist drills in deep-hole drillingcitations
- 2006Effect of MQL on the tool life of small twist drills in deep-hole drillingcitations
- 2006Boundary element stress analysis for bi-metallic dies in pressure diecastingcitations
- 2006Boundary element stress analysis for copper-based dies in pressure die castingcitations
- 2006Bi-metallic dies for rapid die castingcitations
- 2006Experimental investigation into the thermal behavior of copper-alloyed dies in pressure die castingcitations
- 2006The performance of small diameter twist drills in deep-hole drillingcitations
- 2002Optimization for boiling heat transfer determination and enhancement in pressure die castingcitations
- 2001Novel cooling channel shapes in pressure die castingcitations
- 2000An experimental and numerical investigation into the thermal behavior of the pressure die casting processcitations
- 2000Determination of heat transfer coefficients using a 1-d flow model applied to irregular shaped cooling channels in pressure diecastingcitations
- 2000Predicting heat extraction due to boiling in the cooling channels during the pressure die casting processcitations
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article
Experimental investigation into the thermal behavior of copper-alloyed dies in pressure die casting
Abstract
The rate of heat extraction during the pressure die casting process is central to both the quality and the cost of finished castings. Recent efforts to reduce the thermal resistance of dies by optimizing the effectiveness of the cooling channels have shown the potential for improvement. Reducing the thermal resistance of the coolant boundary layer means that a significant proportion of the total thermal resistance becomes attributable to the die steel. Further significant reductions in die thermal resistance can be obtained by replacing the steel with copper. This paper investigates the feasibility of using copper dies, reinforced with steel inserts and coated with a thin layer of wear resistant material, which is deposited using the thermal arc spray process. Experimental work relating to the thermal spray process has been undertaken to establish bond strengths and thermal conductivities for various process parameters. Moreover, experimental investigations have been carried out using two copper coated dies, the first of which was a pseudodie block heated by an infrared heater. The second die was tested on a die casting machine and produced zinc alloy castings at a greatly increased production rate when compared to its steel counterpart. The experimental results from the two dies are compared with those predicted by an in-house thermal-cum-stress model based on the boundary element method. Reasonable agreement between the predicted and experimental results is shown and the feasibility of copper-alloyed dies for pressure die casting is established. Copyright © 2006 by ASME.