Effect of preform design on forging load and effective stress during closed die hot forging process of pin

In hot forging process the design of preform is very important to minimize the forging load and effective stress to improve the die life and quality of components. In this paper three preforms have been designed with the rule of volume constancy for the pin?s head which are forged under 150 ton friction screw press. The forging load and effective stress have been analyzed by finite element analysis. The effects of preform volume and length to diameter ratio of preform geometry have been also analyzed and validated experimentally. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Materials, Processing & Characterization.