Big data accumulation of L-shape extruded alloys for interior parts for high-speed trains

Abstract

L-Shape extruded alloys were manufactured by adopting aluminum alloy as the candidate lightweight alloy to be used for interior and exterior materials of high-speed trains. The cast product was extruded using the air slip (AS) casting method and the direct casting (DC) method. The product was again heat-treated with T5 or T6 tempering. According to literature research, the candidate alloys were selected as 6063, 6N01, 6061, 6060, 6005 and 5083 alloys. These alloys were extruded after casting and heat-treated and their properties such as the hardness, microstructure and tensile properties were evaluated. The hardness, microstructure and tensile properties of the selected 6063, 6N01, 6061, 6005 and 5083 aluminum alloys in the present study are similar to those of external materials made by Alcan, Canada. Mechanical properties of the extruded materials were comparable to those of external materials (manufactured by Canada, Alcan). The hardness, microstructure, and extrusion characteristics of AA6063, AA6N01, AA6061, AA6005, AA6060 and AA5083 alloys selected in the present study through literature review are similar to those of external materials (Canada, Alcan). By performing extrusion, under the conditions of high-speed railway, the process conditions for manufacturing extruded materials with complicated shape to meet the requirements of vibration resistance and airtightness have been established. Therefore, it was proved to be sufficient as the interior and exterior materials of high-speed train.