کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1260282 | 971732 | 2007 | 4 صفحه PDF | دانلود رایگان |
With the help of numerical analysis of trigonometric interpolation and Conformal Mapping theory, the conformal mapping function could be set up to translate the non-circle cross-section region of special-shaped products into unit dish region, over numerical finite interpolation points between even and odd. Thus, forming of products extrusion could be turned into two-dimension problem, and plastic stream function could be deduced as well, whilst, mathematical model of die cavity surface was determined based on different kinds of vertical curve. By Upper-bound Principle, both vertical curves of die cavity and its parameters were optimized. Furthermore, taking ellipse-shaped products as an instance, the calculation and analysis were carried out.
Journal: Journal of Rare Earths - Volume 25, Supplement 2, June 2007, Pages 375-378