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http://dx.doi.org/10.14775/ksmpe.2014.13.3.056

FE Analysis of Forging Process for Improving Tool Life in Hot Forging of CV Joint Outer Race  

Kim, Yohng-Jo (School of Mechanical Engineering, Kyungnam University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.13, no.3, 2014 , pp. 56-62 More about this Journal
Abstract
During the hot forging process, the most common cause of tool failure is wear. Tool wear results in the gradual loss of part tolerances, after which eventually the tool must be replaced or repaired. In order to maximize the lifetimes of forging tools, it is important to investigate the wear mechanisms of these tools. In this study, the hot forging of the outer race of an automotive constant-velocity joint was analyzed by a finite element method to investigate the wear distribution, especially the amount and location of the maximum expected wear damage, using Archard's wear model, which was modified considering the forging temperature. Forging analyses were carried out after modifying blocker forging tools based on established versions. The modified blocker tools resulted in an increase in the tool life up to 31% with a finisher punch.
Keywords
Hot Forging; Wear; Archard Wear Model; Tool Life; CV Joint; Outer Race;
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