Metal Forms (cellular metals)

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Presentation transcript:

Metal Forms (cellular metals) Material Science Metal Forms (cellular metals) 2009011669 2013011539 2013011527 Kim min su Cho hyun soo Oh eun bin 1

Imagies (Closed cell type) (Open cell type)

Production proceed Proceed of Closed cell Melting Thickening Foaming Melt Al 6061 at 700℃ Thickening Temp. 670℃ Ca-10Al, 1.5wt% strring(600rpm), 15min Foaming Temp. 680℃ TiH2 2wt%, strring(1000rpm), 10sec Holding Holding time : 60 s Cooling Air cooling

Production proceed Proceed of open cell Ball Melting Al Cooling Put ting ball in mold Melting Al Temp. 670℃ Ca-10Al, 1.5wt% strring(600rpm), 15min Cooling Air cooling Disolving Disolve the ball by water

Properties

Properties Properties Al Al metal forms Density 2.7g/㎤ 0.2~0.4g/㎤ Heat conductivity 167W/m-k 2~4W/m-k Specific Strength Low Very Low Heat resistance High Energy absortion rate (Impact · Sound · Vibrate energy)

Application Application Low density High energy absorption Car bumper building timber Elevator Soundproof walls Application Aerospace

Development in G.N.U. In 2002, Professor Heo bo-young's team in GNU and the Korea Resources Corporation have developed a device which is made of metal sponge to reduce the impact of crush in car accidents using aluminum cans. – Dong-A Daily news, 2002.09.01

Thanks for attention