Electrospark Deposition by Using Powder Materials

Abstract

Electrical discharges can be used to improve the operational properties of the surface layer of parts by using the phenomena of tempering, alloying, and deposition. Various techniques of alloying or deposition have been studied so far and sometimes even applied in the industry. The systemic approach of the deposition process shows which input and output factors can be taken into consideration. This article presents the experimental results obtained by using the deposition process based on the introduction of additional material such as powders put directly in the plasma channel corresponding to the electrical discharge. The established empirical mathematical models emphasize the influence exerted by the work gap value between the electrode and the workpiece, the powder flow, the delivered energy, and the specific energy on the quantity of added material.

Keywords:

• Electrospark deposition
• Empirical model
• Experimental study
• Influence factors
• Powder materials

ACKNOWLEDGMENTS

The research was carried out by researchers from Romania as part of Project No. ID_625, financed by the National Council of Scientific Research for Higher Education, Romania.