Showing papers by "Grzegorz Królczyk published in 2013"
Journal Article•
56 citations
01 Jan 2013
TL;DR: In this paper, the influence of cutting parameters, namely cutting speed, feed and depth of cut onto tool life in DSS turning process was examined, and a mathematical model was developed to determine the tool life.
Abstract: This paper examines the influence of cutting parameters, namely cutting speed, feed and depth of cut onto tool life in DSS turning process. The study included developing a mathematical model to determine the tool life. Verification research has been carried out on CNC lathe, hence the test plan has been adjusted to the possibility of programmable machines controlling GE Fanuc series 0 T. The comparison of results obtained by given experimental plan was performed in industrial company.
53 citations
Journal Article•
TL;DR: Istraživanje sadrži mjerenje tvrdoce duplex nehrđajuceg celika, koji je obrađen postupkom tokarenje pri razlicitim reznim uvjetima.
Abstract: Cilj ispitivanja je utvrđivanje tvrdoce povrsine duplex nehrđajuceg celika nakon tokarenja prevucenim plocicama iz tvrdih metala. Istraživanje sadrži mjerenje tvrdoce duplex nehrđajuceg celika, koji je obrađen postupkom tokarenje pri razlicitim reznim uvjetima. Mjerenje tvrdoce se izvodilo za razlicite brzine rezanja, u uvjetima obrade sa i bez hlađenja. Rezultati mjerenja su uspoređeni za razlicite rezne alate: T1 alat prevucen keramickim slojem srednje debljine i viseslojno prevucen T2 alat. Istraživanje je provedeno mjerenjem tvrdoce HV10, a rezultati mjerenja su statisticki obrađeni.
44 citations
Journal Article•
TL;DR: In this article, the authors determined detailed identification of wear mechanisms occurring on the rake face and major flank in the process of turning the DSS, and compared the results of wear on the tool both points were compared for the period of the steady-state wear of the tool point.
Abstract: Original scientific paper The purpose of the study was to determine the coated carbide tool surface topography. The study included determining detailed identification of wear mechanisms occurring on the rake face and major flank in the process of turning the DSS. The results of wear occurring on the tool both points were compared for the period of the steady-state wear of the tool point. Occurrence of various mechanisms, such as abrasive wear, was proven. Scanning Electron Microscopy SEM and Infinite Focus optical device for 3D surface measurement were used for the wear analysis.
35 citations
01 Dec 2013
TL;DR: In this article, the effect of cutting conditions on the machinability of DSS is discussed and the advantages and disadvantages of various tool materials with regard to machining DSS are highlighted.
Abstract: In production practice, it is important to know the machinability of new constructional materials. This is related to the selection of adequate cutting tools and machining conditions. One of such relatively new materials is Duplex Stainless Steel (DSS). Manufacturing machine parts of hard-to-machine material is very troublesome. It is still more difficult when high quality requirements are to be met. Duplex stainless steel is used in applications for very severe working conditions, e.g. for modern deep-well pump bodies for mining industry or the shafts of electric mixer motors in food industry. This paper discusses the effect of cutting conditions on the machinability of DSS. The advantages and disadvantages of various tool materials with regard to machining of DSS are highlighted. Problems associated with the machining of DSS as well as tool wear and the mechanisms responsible for tool failure are identified and discussed. However, the machinability of DSS is an area that needs to be studied more deeply to cut the production cost.
16 citations