Preliminary communication

Researches concerning the ultasonic energy influence on the resistence to the abrasive wear of loaded welded parts

Gh. Amza ; Engineering and Tehnological Systems Management Faculty, Polytehnic University of Bucharest, Romania
D. Dobrotă ; Engineering Faculty, University “Constantin Brancuşi” of Targu-Jiu, Romania

Abstract

The researches presented in the paper refer to the effect of ultrasounds propagation in the liquid metal bath on the process of transferring the additive material through the electric arch and on the crystallization process, and all these effects are analyzed for loaded welded parts solicited at the abrasive wear. All these influences are conferred to these two basic phenomena due to the ultrasounds propagation in liquid environments, namely, ultra-acoustic cavitation and acceleration of the diffusion process. The results concerns the resistance to the wear obtained for the loaded parts through manual welding with electric arch and classically covered electrode and ultrasonically activated.

Keywords

overlay welding; manual welding; ultrasound activation; abrasive wear

Hrčak ID:

86774

URI

https://hrcak.srce.hr/86774

Publication date:

1.1.2013.

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