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Abstract：
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Equal channel angular pressing-forward extrusion (ECAP-FE) can be used as a new process for consolidation of metallic powders. For pure aluminum powder, the finite element simulation analysis on thermal mechanical coupling of ECAP-FE process was carried out by software Deform, and the consolidation behavior of aluminum powder was analyzed. The results show that the ECAP-FE process has a strong densification effect on the powder porous body, and the different mold parameters have various impacts on the extrusion force and equivalent strain uniformity of the extrusion deformation. It is shown that the influence of extrusion ratio on the extrusion force is significant, and the influence of die face angle on the equivalent strain uniformity is large. The analysis shows that when the combined extrusion is conducted by the mold structure parameters with the die face angle of 45°, the transition distance of 20 mm and the extrusion ratio of 6.25, the extrusion force reduces, and the equivalent strain uniformity improves. Thus, the above research and analysis provide a theoretical basis for the mold design and the aluminum powder densification.
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Funds：
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山西省科技攻关项目（20140322-20）; 国家级大学生创新创业项目（2018344）
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AuthorIntro：
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王敏慧（1991-），女，硕士研究生，E-mail：wmh4742@163.com；通讯作者：游晓红（1965-），女，学士，教授，E-mail：283486490@qq.com
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Reference：
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