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Experimental and simulation studies on thixoforming of AA 2017 alloy

机译：AA 2017合金触变性的实验与模拟研究

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摘要

Thixoforming is one of the near net shaped manufacturing processes which in the product will be formed between the solidus and the liquidus temperatures of the alloy. In the present work, a finite element based simulation study has been performed to simulate the thixoextrusion of AA 2017 alloy in the semisolid range. The alloy has been heated between 570 and 610 degrees C and it was extruded in a die having die cone angles of 30, 45 and 60 degrees. Simulation studies have been performed by using the constitutive relation that was developed by performing disc compression tests at different temperatures and strain rates. A good agreement was found between the experimental and the simulation results.
机译：触变成型是近净形制造工艺之一，其在产品中将在合金的固相线和液相线温度之间形成。在目前的工作中，已经进行了基于有限元的模拟研究，以模拟半固态范围内AA 2017合金的触变性。合金已在570至610摄氏度之间加热，并在模锥角为30、45和60度的模具中挤出。通过使用本构关系进行了模拟研究，该本构关系是通过在不同温度和应变速率下进行圆盘压缩试验得出的。实验和仿真结果之间找到了很好的一致性。

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