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  • Author: G. Gergely x
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Open access

P. Manoj Kumar, G. Gergely, D. K. Horváth and Z. Gácsi

Abstract

The Sn–Ag–Cu (SAC) solders with low Ag or Cu content have been identified as promising candidates to replace the traditional Sn–Pb solder. In this study, an extensive discussion was presented on two major area of mechanical properties and microstructural investigation of SAC305 and SAC405. In this chapter, we study the composition, mechanical properties of SAC solder alloys and microstructure were examined by optical microscope and SEM and mechanical properties such as tensile tests, hardness test and density test of the lead solder alloys were explored. SAC305 and SAC405 alloys with different Ag content and constant Cu content under investigation and compare the value of SAC305 and SAC405. From this investigation, it was reported that tensile strength is increased, with an increase of Ag content and hardness and density were also increases in the same manner.

Open access

C. R. Costea, Helga Silaghi, Liliana Matica, E. Gergely, G. Husi and Laura Coroiu

Abstract

In this paper, the application of water pumping process is presented. This article presents the design of a human machine interface. Using this interface, it can be possible to track the evolution of pumping water flow. The applications consists of water pumping process simulation. Also, are illustrated and analyzed several cases, depending on the water flow which is inside the tank.

Open access

C. R. Costea, E. Gergely, G. Husi, Laura Coroiu, Helga Silaghi and A. Bara

Abstract

Feedforward and feedback control are new control algorithms used in industrial processes control and very suitable for grinding systems control. The purpose of this paper is to provide a design technique for a control system of a grinding circuit using the feedforward and feedback control. The control scheme is based on the undercompensation of the milling feed flow. The best value of the undercompensation is chosen after analyzing several scenarios. The controller design based on this value proves to provide improved productivity.