کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1638533 | 1517029 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical simulation on thixo-co-extrusion of double-layer tube with A356/AZ91D
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Numerical simulation on thixo-co-extrusion of double-layer tube with A356/AZ91D Numerical simulation on thixo-co-extrusion of double-layer tube with A356/AZ91D](/preview/png/1638533.png)
چکیده انگلیسی
Based on analysis of the main forming methods for double-layer tube, a new short-term forming process called thixo-co-extrusion was put forward in producing double-layer tube by combining the semi-solid forming technology and multi-billet extrusion technology. By means of forward extrusion with shaft, a finite element model of thixo-co-extrusion with A356/AZ91 was constructed by ABAQUS FEM software. The distributions of temperature field and velocity field as well as the contact force during thixo-co-extrusion were studied. The diffusion on the interfaces between inner and outer metals was analyzed. The simulation results show that, in the beginning of thixo-co-extrusion, the uneven wall thickness can appear. To thickness ratio of 5:5, a double layer tube with good inner and outer wall combination can be realized if VA356 is 0.12 m/s and VAZ91 is 0.20 m/s.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Supplement 3, September 2010, Pages s921-s925
Journal: Transactions of Nonferrous Metals Society of China - Volume 20, Supplement 3, September 2010, Pages s921-s925
نویسندگان
Kai-kun WANG, Jian-lin SUN, Hai-feng MENG, Yan-mei DU, Xi WANG,