Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2008.10a
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- Pages.50-53
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- 2008
The Influence of Extrudate Microstructure of Die Cooling Using $N_2$ gas in Hot Extrusion for Al 6061 Alloy
Al 6061의 열간압출시 질소금형냉각이 압출재의 미세조직에 미치는 영향
Abstract
It's so difficult to obtain simultaneously both product quality and improvement of the productivity of which products are in hot aluminum extrusion process. But significant improvements in productivity and extrudate quality result from die cooling system using nitrogen gas injection during aluminum hot extrusion. These benefits are due primarily to cooling effect nitrogen gas and removal of excess heat in the extrudate temperature. This investigation is carried out hot extrusion experiment, also compared cooling system with non-cooling system to inspect cooling effects on hot aluminum extrusion. The purpose of this investigation is estimated the grain growth fur the extrudate quality, and the ram speed for the improvement of the productivity.
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