Forming characteristics of tubular product through the rotary swaging process
Forming characteristics of tubular product through the rotary swaging process
复制标题
DOI：
10.1016/j.jmatprotec.2007.08.086
复制
发表时间：
2009
影响因子：
6.3
通讯作者：
S. Lim;Ho-Joon Choi;Chi-Hwan Lee
中科院分区：
文献类型：
--
作者：
S. Lim;Ho-Joon Choi;Chi-Hwan Lee
为了获得理想质量的管材，采用旋转模锻工艺进行了管材成形特性的实验研究，并考虑了成形进给量、缩径量等工艺参数，采用了旋转模锻机和四分体模具。从这些实验结果中，它被发现的工艺变量影响管的质量，如产品的尺寸精度，硬度，表面粗糙度和显微组织。当成形进给量大于2.0mm/rev时，会产生缺陷，产品厚度由初始的2.3mm增加到3.75mm，增加了63%。在管的表面上测量的硬度取决于直径的减小，并且很少受到成形进给从0.5至2.0mm/rev的变化的影响。旋锻后的产品的表面粗糙度比旋锻前的好约三倍。基于这些结果，一个汽车转向部件的管状杆移动被证明是有效的旋转锻造过程中制造。
Experiments for the forming characteristics of a tube by a rotary swaging process have been carried out to obtain a tubular product of desirable quality taking into account the process variables such as the forming feed and reduction of diameter of the product using the developed rotary swaging machine and four-split dies. From these experimental results, it is found that the process variables affect the quality of the tube such as the dimensional precision, hardness, surface roughness and microstructure of the product. It is also found that defects can occur at the forming feed of more than 2.0mm/rev. The thickness of the product increased about 63% from its initial thickness of 2.3mm to 3.75mm. The hardness measured on the surface of the tube depended on the reduction of the diameter and is rarely affected by the variation of the forming feed from 0.5 to 2.0mm/rev. The surface roughness of the product after swaging is about three times better than that before swaging. Based on these results a tubular rod shift for an automobile steering part was shown to be effectively manufactured by the rotary swaging process.