Affiliation:
1. Non-destructive Testing Laboratory, Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran
Abstract
In this article, the acoustic emission technique has been used to study a well-known surface damage mechanism, known as galling, during experimental simulation of sheet metal forming process. Results illustrated that the galling starts with relatively low-amplitude acoustic emission waves, corresponding to the elastic–plastic deformation of surface asperities (stage I), followed by a continually graduate rise in the acoustic emission activities related to the sheet material transfer to the slider tool along with lump growth (stage II), and ended to some waves with the highest amplitude and energy corresponding to the severe plowing and rupture of the friction junctions (stage III).
Subject
Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering
Cited by
5 articles.
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