Properties Evaluation of Thin Microhardened Surface Layer of Tool Steel after Wire EDMReport as inadecuate




Properties Evaluation of Thin Microhardened Surface Layer of Tool Steel after Wire EDM - Download this document for free, or read online. Document in PDF available to download.

1

Department of Manufacturing Processes Operation, the Technical University of Košice, Štúrova 31, Prešov 08001, Slovakia

2

Department of Science and Research, the Technical University of Košice, Bayerova 1, Prešov 08001, Slovakia

3

Department of Mathematics, Informatics and Cybernetics, The Technical University of Košice, Bayerova 1, Prešov 08001, Slovakia





*

Author to whom correspondence should be addressed.



Academic Editor: Hugo F. Lopez

Abstract This paper describes results of experimental research on the thin microhardened surface layer of a machined surface that occurs in materials using wire electrical discharge machining WEDM with brass wire electrode. The direct influence of microhardened surface layer on resulting machined surface quality of tool steel EN X210Cr12 W.-Nr. 1.2080 was examined. The aim of the experiment was to contribute to the knowledge of mutual interactions between main WEDM technological parameters, the influence of these parameters on the total affected depth, and on the variation of microhardness of sub-surface layers of machined surface. Based on the microhardness experimental measurements, mathematical models were established by the Least Square Method LSM in order to simulate and predict final quality of machined surface after WEDM. Recommendations are given for setting the main technological parameters of the discharge process concerning minimization of total microhardened surface layer depth and microhardened surface layer homogeneity along the whole cross-section profile of the machined surface. View Full-Text

Keywords: machining; heat affected; tool steel; hardness machining; heat affected; tool steel; hardness





Author: Ľuboslav Straka 1,* , Ivan Čorný 2 and Ján Piteľ 3

Source: http://mdpi.com/



DOWNLOAD PDF




Related documents