INFLUENCE OF RIB DIMENSIONS ON THE SOLIDIFICATION OF CAST PARTS

被引：0

作者：

Ciobanu, Ioan ^{[1
]}

Tutuianu, Diana ^{[1
]}

Bedo, Tibor ^{[1
]}

Crisan, Aurel ^{[1
]}

机构：

[1] Transilvania Univ Brasov, Brasov, Romania

来源：

METALURGIA INTERNATIONAL | 2010年 / 15卷 / 08期

关键词：

ribs; casting slopes; corner radii; cast; aesthetic function;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The ribs applied to the walls of cast parts are designed for enhancing both stiffness and aesthetics. The presence of ribs modifies the conditions of heat transmission and implicitly the solidification of the alloy in the joining area of the rib to the part wall. This is highlighted by the modified radius of the circles inscribed in the rib wall joining area. The diameter of the circles inscribed in this area is greater than of those in rest of the part wall. This leads to the assumption that the solidification of the alloy in this area is slowed. The paper presents the results of a study concerning the influence of rib dimensions (thickness and length) on the duration of cast part solidification and on the position of the hot spots. The study was conducted by computer simulation of solidification. The results have revealed, that in certain situations (thin ribs compared to wall thickness) the ribs cause an acceleration of the solidification of cast parts. The dimensions of ribs ensuring the maximum cooling effect are determined.

引用

页码：63 / 72

页数：10