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Vibration influence on polycrystalline structure and internal friction of the material deposited by welding

M. A. LUCA1, T. PISU MACHEDON1,*

Affiliation

  1. Faculty of Science and Materials Engineering ” University Transilvania Brasov” ”B-dul Eroilor Nr.29, Brasov500036, Romania

Abstract

The paper presents some aspects concerning the influence of low-frequency sinusoidal mechanical oscillations on the aspect of the surfaces made by welding-loading operations, as well as of the microstructures, density and logarithmic decrement. The results obtained and presented can be used for the development of some welding-loading technologies, both of the construction steels with good weldability and of the alloyed steels with higher carbon content, that are not being currently welded. Under the action of the vibrations applied during welding, surfaces with fine, uniform, and maximum drawdown of 0.2mm are realized. Also, it increases the density of the material deposited, tensions and the friction of the basic material go down..

Keywords

Welding, Vibration, Polycrystalline structure, Internal friction.

Submitted at: March 25, 2013
Accepted at: July 11, 2013

Citation

M. A. LUCA, T. PISU MACHEDON, Vibration influence on polycrystalline structure and internal friction of the material deposited by welding, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 7-8, pp. 655-661 (2013)