Optimum Process Parameters for Enhanced Uniform Hardness Distribution and Barreling Behavior in Upsetting

被引：4
作者：
HariKrishna, Ch. [1 ]
Davidson, M. J. [2 ]
Nagaraju, Ch. [1 ]
机构：
[1] VR Siddhartha Engn Coll, Dept Mech Engn, Kanuru 520007, Vijayawada, India
[2] Natl Inst Technol, Dept Mech Engn, Warangal, Andhra Pradesh, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2015年 / 68卷 / 02期
关键词：
AA2014; Upsetting; Hardness distribution; Deformation load; Barrel radius; Taguchi approach; COMPOSITE PREFORMS; STRAIN; PARTS;
D O I：
10.1007/s12666-014-0447-y
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The present work focuses on the application of 'Taguchi' optimization technique for the upsetting of AA2014 cylindrical billets. Different height (h) to the diameter (d) ratios, different lubricants, and billets aged to different times were considered as process parameters. The experimental results proved that the hardness is not uniform throughout the entire billet and will vary with the lubricant employed at the die/billet interface, height to the diameter ratios and ageing condition. The process parameters were optimized to get uniform distribution of hardness in the billet, to reduce the deformation load and barreling effect. Using ANNOVA analysis, the percentage contribution of each factor was determined. To test the accuracy of the predicted results, confirmation experimental runs were conducted and the results were validated.
引用
收藏
页码：219 / 228
页数：10
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