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1

Regeneration of industrial cutting blades made from X39Cr13 steel used in skinning process of pleuronectidae-family flatfishes

Zieliński B., Kapłonek W., Nadolny K.

Journal of Mechanical and Energy Engineering

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2018

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Vol. 2, No 4

277--284

EN

One of the important and still current problems occurring in the fish processing industry is the intensive wear of the cutting surface of industrial cutting blades used to separate the fish raw material. In the paper, the proposes aproprietary solution to the above problem consisting in the regeneration of worn surfaces realized in the process of precise grinding by the use of a prototype 5-axis CNC grinding machine was presented. The obtained machining results were verified, among others on the basis of measurements of values of the cutting edges inclination angles and analysis of values of selected surface roughness parameters. The proposed solution along with the developed methodology can be an interesting alternative to typical ways of renewing the cutting ability of cutting tools in applications from the fish processing industry.

2

Roughness analysis of composite based on aluminum alloys after electrical discharge machining process with use of different filtering methods

Łętocha A., Cyboroń J., Miller T.

Mechanik

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2017

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R. 90, nr 4

318--320

PL

Materiały ceramiczne lub metaliczne zawierające fazy ceramiczne stanowią interesujący przypadek w pomiarach chropowatości powierzchni. Charakteryzują się bardziej lub mniej porowatą strukturą. Artykuł przedstawia analizę chropowatości materiału kompozytowego o osnowie ze stopu aluminium (AlSi7Mg) zawierającego dodatek 10% obj. węglika krzemu (SiC) oraz 10% obj. grafitu sferycznego (Cg). Powierzchnie próbek przygotowano z zastosowaniem obróbki elektroerozyjnej (EDM). Pomiary wykonano profilometrem stykowym TOPO 02 wyposażonym w głowicę indukcyjną z końcówką diamentową w kształcie stożka (promień: 2 μm, kąt wierzchołkowy: 60º). Przyrząd produkowany jest w Instytucie Zaawansowanych Technologii Wytwarzania. Analizę wykonano trzema metodami filtracji: Gaussa, odpornej Gaussa oraz Gaussa dla powierzchni o warstwowych właściwościach funkcjonalnych. Obliczono parametry: wysokościowe, rdzenia chropowatości, objętościowe. Na podstawie wyników wybrano najlepszą metodę filtracji, dającą wiarygodne wyniki pomiaru parametrów chropowatości.

EN

Ceramic materials or metallic materials containing ceramic phases are very interesting cases in roughness measurement. They are characterised by more or less pored surface. This paper presents roughness analysis of composite material with aluminum alloy base (AlSi7Mg) with 10 vol. % of silicon carbide (SiC) and 10 vol. % of spherical graphite (Cg) additions. Surfaces of these samples were prepared using electrical discharge machining (EDM) process. Measurements were performed with use of contact TOPO 02 profilometer equipped with diamond stylus tip (2 μm radius and 60 degree cone angle). This machine is produced in The Institute of Advanced Manufacturing Technology. Measurements were analysed with use of three filtration methods: Gaussian filter, Robust Gaussian filter and Gaussian filter for surfaces having stratified functional properties. Height roughness parameters, roughness core parameters and volume parameters were calculated. Most proper filtering method, which gives credible results of roughness parameters, was chosen.

3

The analysis of surface roughness of extruded aluminium profiles.

Krakowiak M., Kruzel R.

Inżynieria Materiałowa

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2001

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R. XXII, nr 4

474-476

EN

This paper reports work covering the variation in surface quality in the extrusion of AlMgSi aluminium hollow sections incorporating different extrusion conditions. AlMgSi alloys are the most commonly used alloys in extrusion industry because of its wide range of function. They are used in buildings for constructions that should have a good surface quality. The total geometry can be considered to be split-up into three components-roughness, waviness and form. In this article Ra and Sm were chosen for considerations. Measured volumes quite good describe surface and are the most commonly used to determining roughness' level. The article will be making an attempt to explaining relationship between surface quality and some extrusion parameters.